Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

45°F

7°C

Humidity 68%
Wind Speed NE 10 mph
Barometer 30.26 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 21 May 5:55 am CDT
Extended Forecast for

Gerlaw IL

  • Today

    Today: Partly sunny, with a high near 70. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 1pm.  Mostly cloudy, with a high near 67. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers, mainly before 1am.  Mostly cloudy, with a low around 54. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 70. East wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 50. East wind around 10 mph, with gusts as high as 20 mph.
Friday
A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 67. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 54. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Saturday
Partly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 57.
Memorial Day
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Partly sunny, with a high near 85.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Gerlaw IL
 40.99°N 90.62°W (Elev. 719 ft)
5:46 am CDT May 21, 2026
6am CDT May 21, 2026-6pm CDT May 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database