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

57°F

14°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 29.92 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Apr 3:15 am CDT
Extended Forecast for

Saint Augustine IL

  • Overnight

    Overnight: Mostly clear, with a low around 57. South southeast wind around 6 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 81. Breezy, with a south wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 81 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 59. South wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 71. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. North wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 72. East northeast wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48. East wind around 6 mph, with gusts as high as 15 mph.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 57. South southeast wind around 6 mph.
Thursday
Increasing clouds, with a high near 81. Breezy, with a south wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 59. South wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 50 percent chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 71. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 45. North wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 72. East northeast wind 6 to 9 mph, with gusts as high as 15 mph.
Saturday Night
Mostly cloudy, with a low around 48. East wind around 6 mph, with gusts as high as 15 mph.
Sunday
Mostly cloudy, with a high near 72.
Sunday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 73. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of showers. Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 67.
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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:
2:11 am CDT Apr 23, 2026
Forecast Valid:
3am CDT Apr 23, 2026-6pm CDT Apr 29, 2026
 
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