National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

70°F

21°C

Humidity 58%
Wind Speed E 6 mph
Barometer 30.13 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 16 Sep 11:35 pm CDT
Extended Forecast for

Saint Augustine IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. Light east wind.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Light east wind.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 92. Light southeast wind.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. Light east southeast wind.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers. Partly sunny, with a high near 83. Light and variable wind becoming south southeast around 6 mph in the morning.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Light east wind.
Wednesday
Sunny, with a high near 90. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 59. Light east wind.
Thursday
Sunny, with a high near 92. Light southeast wind.
Thursday Night
Partly cloudy, with a low around 62. Light east southeast wind.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 83. Light and variable wind becoming south southeast around 6 mph in the morning.
Friday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 85.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 84.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 62.
Monday
A chance of showers. Partly sunny, with a high near 83.
Monday Night
A chance of showers. Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Augustine IL
 40.72°N 90.42°W (Elev. 600 ft)
Last Update:
8:41 pm CDT Sep 16, 2025
Forecast Valid:
11pm CDT Sep 16, 2025-6pm CDT Sep 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation