L-36.com
Top   Marine   7-Day   Tide   NWS   Buoy   Airport   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for St. Michaels, MD

June 21, 2025 1:58 PM EDT (17:58 UTC)
Change Location 
Sunrise 5:38 AM   Sunset 8:34 PM
Moonrise 1:13 AM   Moonset 3:38 PM 
Print  Help   Reset   Save   Recall   News  Map
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
Edit   Hide   Help

NOTE: Zones were updated 3/20/2025
ANZ540 Eastern Bay- 134 Pm Edt Sat Jun 21 2025

.small craft advisory in effect from 6 pm edt this evening through late tonight - .

This afternoon - SW winds 5 kt. Waves less than 1 ft.

Tonight - S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.

Sun - SW winds 5 to 10 kt. Waves 1 ft.

Sun night - SW winds 5 to 10 kt. Waves 1 ft.

Mon - NW winds 5 kt. Waves flat.

Mon night - W winds around 5 kt. Waves flat.

Tue - NW winds around 5 kt. Waves flat.

Wed - NW winds around 5 kt. Waves flat.
ANZ500 134 Pm Edt Sat Jun 21 2025

Synopsis for the tidal potomac and md portion of the chesapeake bay -
a large area of high pressure will influence the area through at least Tuesday. A frontal boundary may approach from the north by Wednesday and Thursday. A small craft advisory may be needed for portions of the waters Sunday evening.

7 Day Forecast for Marine Location Near St. Michaels, MD
   
Edit   Hide   Help   Map    ←NEW

NEW! Add second zone forecast

Tide / Current for St. Michaels, Miles River, Maryland
  
Edit   Weekend Mode (on/off)   Hide   Help
St. Michaels
Click for Map
Sat -- 01:16 AM EDT     2.14 feet High Tide
Sat -- 02:12 AM EDT     Moonrise
Sat -- 05:40 AM EDT     Sunrise
Sat -- 08:51 AM EDT     0.67 feet Low Tide
Sat -- 01:02 PM EDT     1.27 feet High Tide
Sat -- 04:37 PM EDT     Moonset
Sat -- 07:24 PM EDT     0.17 feet Low Tide
Sat -- 08:33 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, St. Michaels, Miles River, Maryland does not exist in database. Press Edit above and select a valid nearby location.

St. Michaels, Miles River, Maryland, Tide feet
12
am
2
1
am
2.1
2
am
2.1
3
am
1.9
4
am
1.7
5
am
1.4
6
am
1.1
7
am
0.9
8
am
0.7
9
am
0.7
10
am
0.8
11
am
1
12
pm
1.2
1
pm
1.3
2
pm
1.2
3
pm
1
4
pm
0.8
5
pm
0.5
6
pm
0.3
7
pm
0.2
8
pm
0.2
9
pm
0.4
10
pm
0.8
11
pm
1.3

Tide / Current for Baltimore Harbor Approach, Maryland Current
  
Edit   Hide   Help
Baltimore Harbor Approach
Click for Map
Sat -- 01:53 AM EDT     1.13 knots Max Flood
Sat -- 02:12 AM EDT     Moonrise
Sat -- 05:36 AM EDT     -0.00 knots Slack
Sat -- 05:40 AM EDT     Sunrise
Sat -- 08:46 AM EDT     -0.85 knots Max Ebb
Sat -- 12:34 PM EDT     0.00 knots Slack
Sat -- 02:34 PM EDT     0.29 knots Max Flood
Sat -- 04:37 PM EDT     -0.00 knots Slack
Sat -- 04:38 PM EDT     Moonset
Sat -- 07:59 PM EDT     -0.67 knots Max Ebb
Sat -- 08:34 PM EDT     Sunset
Sat -- 10:47 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Baltimore Harbor Approach, Maryland Current does not exist in database. Press Edit above and select a valid nearby location.

Baltimore Harbor Approach, Maryland Current, knots
12
am
0.8
1
am
1
2
am
1.1
3
am
1
4
am
0.7
5
am
0.3
6
am
-0.2
7
am
-0.6
8
am
-0.8
9
am
-0.8
10
am
-0.7
11
am
-0.5
12
pm
-0.2
1
pm
0.1
2
pm
0.3
3
pm
0.3
4
pm
0.1
5
pm
-0.1
6
pm
-0.4
7
pm
-0.6
8
pm
-0.7
9
pm
-0.6
10
pm
-0.3
11
pm
0.1

Area Discussion for Philadelphia/Mount Holly, PA
   Hide   Help   
NOTE: mouseover dotted underlined text for definition
FXUS61 KPHI 211712 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 112 PM EDT Sat Jun 21 2025

SYNOPSIS
Hot and dry high pressure across the western Atlantic will build west into the Appalachian region early next week. This will result in a significant heat wave for much of the eastern US with near record breaking temperatures forecast. The high pressure system will begin to weaken and retreat to the south by the middle to end of the week, and temperatures will return closer to normal along with increasing chances for showers and storms.

NEAR TERM /THROUGH SUNDAY/
As of 1100 AM, temperatures have warmed into the low to mid 80s across much of the area. Some cumulus is starting to develop given the continued warming of the boundary layer, and some cirrus is present. The cirrus may actually increase some given cloud debris from ongoing convection in the eastern Great Lakes area. Given light southwesterly flow, a sea/bay breeze should be present today.

Otherwise, high pressure off the coast to our south will build through Sunday and beyond. Skies will be mostly clear most of the time with prevailing southwesterly winds of 5-10 mph today increasing to 10-15 mph Sunday, which will begin and then enhance warm air advection. A relatively subtle warm front will move northeast into the region today, which could spawn a stray shower or thunderstorm mainly in the Poconos. The front will mostly pass the region late tonight into early Sunday, though it could help provide a path for a convective complex some guidance shows passing mostly to the northeast of the region early Sunday. Beyond that, dry weather should prevail for the bulk of Sunday.

With the warm front moving into the region with southwesterly winds today, temps should warm several degrees above Friday's readings, with highs generally near or slightly above 90. Dew points will remain mostly in the low-mid 60s, so heat indices should be close to actual temperatures.

Tonight, with continued southwest flow, lows will be elevated, with much of the region failing to fall below 70. Dew points will creep up a few degrees, but remain mostly in the 60s.

Sunday is the first really hot day, with highs expected to rise into the mid-upper 90s for most. Dew points will also creep up, passing 70 in some areas. This will bring heat indices up to around 100 or a little higher for most. For simplicity's sake, we've decided to upgrade the Extreme Heat Watch to a warning starting Sunday, even though it won't quite reach warning criteria on Sunday. Also added a heat advisory for the Poconos where low-elevations will reach criteria. Southern areas, where criteria is higher, have left out of headlines until Monday.

SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/
Significant heat wave peaking Monday and Tuesday with dangerously hot and humid conditions expected.

A strong ridge of high hot and dry pressure will build across the eastern US Monday and Tuesday. Mid level heights, thicknesses, and 850 mb temperatures contributing to the heat wave will all peak during this time frame. The center of the ridge will be positioned to our southwest, which should maximize heat potential locally. At the surface, winds will be modest from the west or northwest. This will add a component of downsloping into the temperature equation, helping to boost temperatures by a couple degrees. The wind direction will also lessen the influence of the sea breeze, or lack thereof, for coastal areas. The pattern is checking a lot of boxes for a set up capable of producing fairly widespread 100 degree temperatures in our region, perhaps one of the most favorable patterns in a few years.

Fortunately, the pattern will favor dewpoints mixing out reasonably well into the afternoon hours, but the high temperatures will still result in heat indices of around 100-110 degrees across the board both Monday and Tuesday. At this point, Monday looks to be the most humid of the 2 days, and thus highest heat index day with heat indices around 105-110 degrees in many areas. Slightly drier air, slightly stronger northwest flow, and perhaps deeper mixing on Tuesday will favor slightly higher temperatures, but heat indices should be near or perhaps a few degrees lower than Monday. Regardless of those details, it's going to be very hot both days!

Extreme Heat Warnings and Heat Advisories remain in effect as previously issued. Around the Delaware Valley, Lehigh Valley, and northern New Jersey, temperatures could be the hottest observed in over a decade. There will be little relief overnight as temperatures Monday night and Tuesday Night are expected to be around 75 to 80 degrees. Heat tends to have cumulative effects on the body and we are currently forecasting 4 consecutive days of 95+ with Monday and Tuesday likely to feature high temperatures around 100 degrees and heat index values pushing 105-110 degrees. Take frequent breaks if outside, and drink plenty of fluids. Not much else to say to highlight the threat and main story of the upcoming week.

For details regarding the last 100 degree day and temperature records during the upcoming heat wave, see the Climate section below.

LONG TERM /WEDNESDAY THROUGH SATURDAY/
For Wednesday and Thursday...The upper-level ridge weakens a little bit and flattens out/erodes, especially on the northern periphery. While the heat and humidity looks to continue, it should decrease at least some by Wednesday, and especially Thursday and Friday with continued erosion of the northern side of the ridge. In addition, a surface trough should become better defined and introduce a bit more clouds and also the potential for at least some diurnally driven convection. There is a cold front that tries to slide southward on Wednesday, but there is a decent amount of uncertainty with how far south the cold front makes it given the strength of the ridge. Due to this front, there is a slight chance to chance (15-30%) of showers and thunderstorms late Wednesday from the Philadelphia metro on north and west. Increased cloud cover will keep temperatures a touch cooler on Wednesday, but the Extreme Heat Warning remains in for northern Delaware, the Philadelphia metro, Lehigh Valley, and central/northern NJ. Temperatures will be a few degrees cooler compared to Monday/Tuesday, but still in the mid to upper 90s, marking the 4th consecutive day of highs greater than 95 degrees. Heat indices will be near 100 degrees on Wednesday too, so a slight improvement, but still hot.

As mentioned above, the ridge erodes a bit towards the end of the week with a signal for some troughing building in from the north that could lead to showers and thunderstorms both days to end the week. The temperatures look to still hold near 90 degrees on Thursday and in the 80s by Friday, with heat indices still in the 90s but this will be lower than earlier in the week.

AVIATION /18Z SATURDAY THROUGH THURSDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Rest of today...VFR. Southwest winds 5-10 knots. An isolated shower or thunderstorm cannot be ruled out this afternoon from about the KABE area on north and westward. Moderate confidence.

Tonight...VFR. Southwest winds less than 10 knots. Moderate confidence.

Sunday...VFR. Southwest winds increasing to 10-15 knots with some gusts up to 20 knots. Moderate confidence.

Outlook...

Monday through Tuesday Night...VFR. No significant weather.

Wednesday and Thursday...Prevailing VFR, though chances of a shower/thunderstorm (20-40%) for the I-95 and Lehigh Valley terminals, especially Thursday.

MARINE
No Marine headlines are expected through Sunday. Fair weather expected.

Outlook...

Monday through Thursday...No marine headlines expected. Winds 5-15 kts and seas 1-2 feet. Fair weather, but chances for thunderstorms return by Thursday.

Rip Currents...

For today, light shore parallel/offshore flow and breaking waves of only 1 to 2 feet and a medium period, 8 second swell will result in a LOW risk for rip currents at all beaches.

For Sunday, shore parallel flow increases with 10-20 MPH winds and increasing breaking waves of 2 to 3 feet. With multiple swell groups as well, a MODERATE risk is in place for Cape May, Atlantic, and Ocean County beaches. For Monmouth County, NJ and Sussex County, DE, flow is more offshore oriented, resulting in a LOW risk for the development of rip currents.

For specific beach forecasts, visit weather.gov/beach/phi

CLIMATE
Near record breaking heat is expected across the area through the middle of next week. Below is a look at the last 100 degree day, daily record high maximum and minimum temperature for all of our climate sites.

Most Recent 100 Degree Day

Site Date/Temperature Allentown (ABE) July 22, 2011/104 AC Airport (ACY) July 21, 2019/100 AC Marina (55N) July 5, 1999/101 Georgetown (GED) July 21, 2019/100 Mount Pocono (MPO) July 3, 1911/103 Philadelphia (PHL) July 18, 2012/100 Reading (RDG) June 22, 2024/101 Trenton (TTN) July 18, 2012/100 Wilmington (ILG) July 18, 2012/101

Record High Temperatures June 23 Site Record/Year Allentown (ABE) 96/2024 AC Airport (ACY) 98/1988 & 2024 AC Marina (55N) 91/1909 Georgetown (GED) 100/1988 Mount Pocono (MPO) 90/1954 Philadelphia (PHL) 98/2024 Reading (RDG) 98/2024 Trenton (TTN) 97/1894 Wilmington (ILG) 100/1894

Record Warmest Low Temperatures June 23 Site Record/Year Allentown (ABE) 71/2017 & 2024 AC Airport (ACY) 75/2024 AC Marina (55N) 74/2010 Georgetown (GED) 76/1988 Mount Pocono (MPO) 69/2024 Philadelphia (PHL) 76/1888 Reading (RDG) 77/2024 Trenton (TTN) 74/2017 & 2024 Wilmington (ILG) 75/2024

Record High Temperatures June 24 Site Record/Year Allentown (ABE) 98/1923 AC Airport (ACY) 99/2010 AC Marina (55N) 95/2002 Georgetown (GED) 97/2010 Mount Pocono (MPO) 92/1914 Philadelphia (PHL) 99/1923 Reading (RDG) 98/1908 & 1923 Trenton (TTN) 98/1894 Wilmington (ILG) 102/1894

Record Warmest Low Temperatures June 24 Site Record/Year Allentown (ABE) 71/2010 AC Airport (ACY) 72/1951, 2013, 2017 & 2024 AC Marina (55N) 72/1924, 2002, 2010, 2011, 2013 & 2020 Georgetown (GED) 74/2010 Mount Pocono (MPO) 66/1960, 1964 & 2002 Philadelphia (PHL) 75/1909, 1921, 1994 & 2020 Reading (RDG) 73/1909, 1994 & 2010 Trenton (TTN) 76/1894 & 2010 Wilmington (ILG) 74/1994

Record High Temperatures June 25 Site Record/Year Allentown (ABE) 98/1923 AC Airport (ACY) 96/1997 AC Marina (55N) 95/1952 Georgetown (GED) 96/1952 Mount Pocono (MPO) 91/1952 Philadelphia (PHL) 98/1952 Reading (RDG) 99/1943 Trenton (TTN) 99/1997 Wilmington (ILG) 98/1894

Record Warmest Low Temperatures June 25 Site Record/Year Allentown (ABE) 74/1923 & 1976 AC Airport (ACY) 80/1950 AC Marina (55N) 75/1997 & 2002 Georgetown (GED) 75/2019 Mount Pocono (MPO) 69/1952 Philadelphia (PHL) 76/1909, 1976 & 2002 Reading (RDG) 75/1943 & 1949 Trenton (TTN) 75/1976 Wilmington (ILG) 75/1976

PHI WATCHES/WARNINGS/ADVISORIES
PA...Extreme Heat Warning from 8 AM Sunday to 8 PM EDT Wednesday for PAZ060>062-070-071-101>106.
Heat Advisory from 8 AM Sunday to 8 PM EDT Tuesday for PAZ054- 055.
NJ...Extreme Heat Warning from 8 AM Sunday to 8 PM EDT Wednesday for NJZ001-007>010-012-013-015-017>020-027.
Heat Advisory from 8 AM Monday to 8 PM EDT Tuesday for NJZ014- 016-021>026.
DE...Extreme Heat Warning from 8 AM Sunday to 8 PM EDT Wednesday for DEZ001.
Heat Advisory from 8 AM Monday to 8 PM EDT Tuesday for DEZ002>004.
MD...Heat Advisory from 8 AM Monday to 8 PM EDT Tuesday for MDZ012- 015-019-020.
MARINE...None.


Weather Reporting Stations
   Edit   Hide   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
CXLM2 9 mi58 minW 7G8.9
TPLM2 - Thomas Point, MD 13 mi58 minSSE 5.1G6 79°F 30.19
44063 - Annapolis 16 mi58 minSSE 5.8G7.8 78°F 76°F1 ft
CPVM2 16 mi58 min 80°F 79°F
CA2 - 8571892 - Cambridge, MD 18 mi58 minN 1.9G4.1 85°F 79°F30.15
APAM2 - 8575512 - Annapolis, MD 19 mi58 minE 8G8.9 79°F 77°F30.14
44062 - Gooses Reef, MD 21 mi58 minSE 1.9G1.9 83°F 78°F1 ft
BSLM2 - Chesapeake Bay, MD 26 mi88 minSSE 4.1 86°F 30.1268°F
TCBM2 - 8573364 - Tolchester Beach, MD 28 mi58 minW 2.9G4.1 82°F 79°F30.16
COVM2 - 8577018 - Cove Point LNG Pier, MD 30 mi58 minESE 11G12 79°F 30.17
44080 33 mi58 minESE 7.8G9.7 81°F 79°F1 ft30.12
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 33 mi58 minESE 11G12 82°F 30.15
SLIM2 - 8577330 - Solomons Island, MD 36 mi58 minE 1.9G4.1 82°F 80°F30.14
BLTM2 - 8574680 - Baltimore, MD 37 mi58 minSSE 2.9G5.1 85°F 76°F
BISM2 - 8571421 - Bishops Head, MD 42 mi58 minSSW 6G7 82°F 81°F30.17
WASD2 - 8594900 - Washington, DC 43 mi58 minS 7G8 85°F 74°F30.15
DRSD1 - Delaware Reserve, DE 45 mi88 minE 4.1 87°F 30.1564°F


Wind History for Cambridge, MD
(wind in knots)    Edit   Hide   Help
toggle option: (graph/table)

Airport Reports
   
Edit   Hide   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KESN EASTON/NEWNAM FIELD,MD 7 sm13 minWSW 0310 smClear90°F63°F41%30.14
KCGE CAMBRIDGEDORCHESTER RGNL,MD 21 sm13 minvar 0510 smMostly Cloudy86°F66°F52%30.14

Weather Map
   Hide   Help

GEOS Local Image of Mid-Atlantic  
Edit   Hide

Dover AFB, DE,





NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE