West Peoria, IL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for West Peoria, IL

June 20, 2024 6:56 AM CDT (11:56 UTC) Change Location
Sunrise 5:25 AM   Sunset 8:34 PM
Moonrise 7:50 PM   Moonset 3:48 AM 
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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.

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7 Day Forecast for Marine Location Near West Peoria, IL
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Area Discussion for - Central Illinois, IL
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Area Forecast Discussion...Updated Aviation National Weather Service Lincoln IL 627 AM CDT Thu Jun 20 2024


- Hot and humid conditions will continue across central and southeast IL into the middle of next week, with brief relief from the high humidity on Sunday night and Monday. The hottest conditions of the upcoming 7 days look to be Friday, Saturday and Tuesday when air temperatures climb into the mid 90s, and heat index values peak near or just above 100 degrees.

- Isolated thunderstorms will be possible this afternoon and early evening north of I-72. Isolated thunderstorms are possible north of Peoria Friday and Saturday afternoon. A better chance for thunderstorms arrives Saturday night into Sunday morning as a cold front moves through Illinois.

Issued at 400 AM CDT Thu Jun 20 2024

Early morning surface map shows large high pressure (1028-1030 mb) anchored off the mid Atlantic and New England Coast and ridging back into the lower Ohio and mid MS river valley. A frontal boundary extended from nw IL near or just nw of the IL river and extending into northern MO and southeast Kansas. A band of convection was nw of the front over nw MO, southeast Iowa and central WI and lifting northeast. IR satellite shows mostly clear skies over central and southeast IL with patches of clouds, while main cloud band was nw of central IL toward the Iowa border and far nw IL. Mild temperatures were in the upper 60s to mid 70s with muggy dewpoints in the upper 60s to around 70F. Patchy fog noted over parts of Indiana and far southeast IL and may need to add this to forecast over Wabash river valley early this morning.

A strong 597 dm 500 mb ridge over the mid Atlantic States (Maryland and southeast PA) was ridging westward into the mid MS river valley. The 00Z June 20th forecast model suite continue to build/retrograde the upper level ridge westward today, with 500 mb height rising to 595-597 dm today over CWA and near 598 dm high over the lower Ohio river valley near Evansville this afternoon.
This will help push the front quickly north of CWA early this morning and into northern IL, north of I-80 this afternoon. Have isolated convection chances far nw CWA early today and then 20% chance northern CWA this afternoon from Quincy to Bloomington north.

The frontal boundary meandering over northern/ne IL tonight to lift north of IL by supper time Friday and its convection chances to generally shift north of CWA tonight through Friday night. Much of area should actually stay dry through the daytime hours on Saturday.

Main weather story will be the high heat and humidity that continues into this weekend. Highs today in the low to mid 90s with afternoon heat indices of 95 to 100 degrees. SW winds will generally be fairly light again today at 5-10 mph so not providing much relief from the high heat and humidity. Lows tonight in the lower 70s.

Airnow.gov for Air Quality shows an orange category (Unhealthy for sensitive groups) appearing over the Wabash river valley over eastern/se IL today (similar to this past Monday). An air quality alert is in effect over much of Indiana from through midnight tonight.

Friday and Saturday will likely see the hottest temperatures with highs in the mid 90s and a few areas reaching upper 90s.
Afternoon heat indices around 100 will be common and Saturday could surpass 100F similar to conditions we had this past Monday.
Still shy of heat advisory criteria of peak heat index of 105F or higher on a day or 100-105F peak heat indices on four consecutive days. Issued another special weather statement to address this heat wave into this weekend.

A stronger upper level trof moves into the Midwest during this weekend finally pushing the strong upper level ridge southward and allowing a cold front to push se through nw IL overnight Sat night and thru central IL late Sat night into Sunday morning and southeast IL Sunday afternoon as it weakens on Sunday. Will see increasing chances of convection from nw to se over central IL (nw of I-70) during Sat night, with 20-30% pops se of the IL river on Sunday. SPC day3 outlook has marginal risk of severe storms Sat night nw of the IL river for damaging winds and hail. Locally heavy rains also possible especially nw CWA Sat night. Highs Sunday in the lower 90s with heat indices in the low to mid 90s in northern CWA and upper 90s to near 100F from I-72 south. Less humid air filters in on Sunday night Monday as dewpoints could slip into the upper 50s/lower 60s with highs in the upper 80s to lower 90s. Upper level ridge building back over the nations heartland on Tue with sw surface flow returns heat and humidity with highs back in the low to mid 90s and heat indices in the upper 90s to lower 100s Tuesday afternoon and mid to upper 90s on Wednesday. IL gets in a nw upper level flow during middle of next week and may see more active wx return. Have 20-30% chance of showers and thunderstorms in central IL Tue afternoon (highest pops nw of IL river), then chance of convection over area Tue night into Wed. Mainly isolated chances of convection Wed night and Thu with highs next Thu in the upper 80s to around 90F and not quite as humid.

The Climate Prediction Center (CPC) 8-14 Day Outlook for June 27 through July 3 has a 60-65% chance of above normal temperatures over IL. Currently through June 19, temperatures are 2-4 degrees above normal in central IL, and we will likely be in the top 10 warmest Junes on record. Peoria average temperature from June 1-19 is 75.1F and only 1 degree from being the 10th warmest June and 2 degrees from being the 5th warmest June.


(For the 12z TAFs through 12z Friday Morning)
Issued at 626 AM CDT Thu Jun 20 2024

Low pressure will remain west of the terminals through the period resulting in light S/SSW winds. Expect diurnal cumulus clouds to develop during the day, and a few spotty showers and storms will be possible this afternoon, but isolated coverage precludes mention in the forecast at this time. The best chance for any precip at or near a station will be from PIA to BMI. VFR conditions will prevail through the period.



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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KPIA GENERAL DOWNING PEORIA INTL,IL 5 sm62 mincalm10 smClear72°F68°F88%30.26
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Central Illinois, IL,

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