St. Francis, WI Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for St. Francis, WI

December 9, 2023 12:26 AM CST (06:26 UTC)
Sunrise 7:09AM   Sunset 4:18PM   Moonrise  4:34AM   Moonset 3:00PM 

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Marine Forecasts
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LMZ645 North Point Light To Wind Point Wi- 1105 Pm Cst Fri Dec 8 2023
.small craft advisory in effect from 3 am cst Saturday through Saturday afternoon...
Rest of tonight..South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots after midnight, then rising to 15 to 20 knots with gusts to around 25 knots early in the morning. Slight chance of rain around midnight, then chance of rain after midnight. Rain and slight chance of Thunderstorms early in the morning. Patchy fog early in the morning. Waves 1 to 2 feet building to 3 to 4 feet early in the morning.
Saturday..Southwest wind 15 to 20 knots veering west late in the morning, then backing southwest in the afternoon. Gusts up to 30 knots. Rain likely in the morning. Waves 3 to 4 feet.
Saturday night..West wind 15 to 20 knots veering northwest early in the morning. Partly cloudy through around midnight then becoming mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet early in the morning.
Sunday..Northwest wind 15 to 25 knots becoming 15 to 20 knots in the afternoon. Partly Sunny. Waves 3 to 4 feet.
wave heights are for ice free areas.

No data

7 Day Forecast for Marine Location Near St. Francis, WI
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Area Discussion for - Milwaukee/Sullivan, WI
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Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 851 PM CST Fri Dec 8 2023

(Issued 851 PM CST Fri Dec 8 2023)

Lower clouds are starting to build across the region this evening, ahead of an area of rain that is developing across eastern Iowa and western Illinois. This rain will continue to expand northward over the next few hours, with widespread light to moderate rain expected overnight. A few rumbles of thunder will be possible over far southeastern Wisconsin as well. Rain looks to come to an abrupt end mid morning tomorrow, as a dry slot noses into the region. Gusty west winds are also expected late tonight and tomorrow, with gusts int the 20-25 MPH range.


(Issued 250 PM CST Fri Dec 8 2023)

Tonight and Saturday:

After an unseasonably warm end to the week, our sunshine will give way to rain. Overnight, a dynamic low pressure system will propagate northeastward and latch on to a larger trough currently towards our northwest. As this low traverses northeastward, rain will begin overnight heading into the morning. Values of rain will be greater along south-central to eastern Wisconsin, with probabilities hovering around 80% for .5 inches along an axis extending from the Wisconsin/Illinois border towards Sheboygan.

Gusty southwest winds and clearer skies will follow the passage of this system as it continues to retreat towards the northeast.
Anticipate cooler temperatures, with higher temperatures remaining near the upper 40s by the lakeshore.


(Issued 250 PM CST Fri Dec 8 2023)

Saturday night through Friday:

Dry slot that persists through most of Saturday pushes out by Saturday night and the secondary surface low deepens and lifts northeast. There looks to be enough moisture on the backside of the departing low for a few scattered, more cellular showers Saturday night. This will align with the colder airmass and result in mostly snow. Given the overnight timing and colder airmass, impacts will be limited, but may be enough to accumulative on untreated roadways especially with any brief bursts of heavier snow.

Otherwise, the extended forecast from Sunday onward is looking fairly less active with upper level ridging and a series of surface high pressures dominating the forecast. Temps will be cooler and closer to normal, but may trend warmer toward the later half of next week.


(Issued 851 PM CST Fri Dec 8 2023)

MVFR ceilings are expanding across the region this evening. IFR conditions are expected overnight, with both low clouds and restricted visibility as light to moderate rain overspreads the region. Areas of LIFR are possible as well, along with the potential for a couple of isolated thunderstorms over far southeastern Wisconsin.

Winds will become gusty from the west late tonight and Saturday morning, with rain ending mid morning. The gusty winds will continue for much of the day on Saturday.


(Issued 250 PM CST Fri Dec 8 2023)

South winds up to 15-20 knots will continue as low pressure around 29.3 inches gradually moves east over Ontario. A secondary area of low pressure currently over Oklahoma will drift northeast over south central Wisconsin tonight and advance over Lake Michigan early morning Saturday. Winds will shift west/southwest and become brisk by late Saturday morning. A cold frontal passage Saturday night will shift the winds to brisk northwesterly that will last through Sunday.


Small Craft Advisory
LMZ645-LMZ646...3 AM Saturday to 6 PM Saturday.

Small Craft Advisory...LMZ643-LMZ644...6 AM Saturday to 6 PM Saturday.

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
MLWW3 - Milwaukee, WI 0 mi57 min S 5.1G6 48°F
PWAW3 - Port Washington, WI 26 mi47 min 0G5.1 45°F 29.72
KNSW3 - Kenosha, WI 29 mi87 min SSE 6G8 45°F 29.69
WHRI2 - Waukegan Harbor, IL 45 mi87 min SSE 8G8.9

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Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KMKE GENERAL MITCHELL INTL,WI 4 sm34 mincalm8 smOvercast48°F43°F81%29.66
KMWC LAWRENCE J TIMMERMAN,WI 11 sm11 mincalm5 smOvercast Mist 43°F43°F100%29.68
KRAC BATTEN INTL,WI 18 sm23 minSSE 068 smOvercast48°F45°F87%29.68
KUES WAUKESHA COUNTY,WI 19 sm11 minSSE 0310 smOvercast45°F45°F100%29.66

Wind History from MKE
(wind in knots)

Tide / Current for
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Weather Map
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GEOS Local Image of great lakes   

Milwaukee, WI,

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