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.

Fog/Mist

N/A

Humidity NA
Wind Speed E 6 mph
Barometer 30.08 in
Dewpoint N/A
Visibility 1.75 mi
Last update 3 Mar 3:35 am CST
Extended Forecast for

Saint Augustine IL

  • Overnight

    Overnight: A 30 percent chance of showers after 5am. Patchy fog. Otherwise, cloudy, with a low around 36. East southeast wind around 5 mph.

    Low: 36 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Showers likely before 9am, then a slight chance of showers after 2pm. Patchy fog before noon. Otherwise, cloudy, with a high near 47. East southeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight. Cloudy, with a low around 38. East northeast wind 6 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Cloudy, with a high near 51. East wind 5 to 8 mph, with gusts as high as 16 mph.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain likely before 9pm, then rain likely and possibly a thunderstorm between 9pm and midnight, then rain after midnight. Low around 43. East northeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Rain

  • Thursday

    Thursday: Rain likely before noon. Mostly cloudy, with a high near 60. Northeast wind 5 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Rain Likely
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 45. Light south wind becoming southeast 5 to 9 mph after midnight. Winds could gust as high as 18 mph.

    Low: 45 °F

    Partly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 75. Chance of precipitation is 80%.

    High: 75 °F

    Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Rain

Detailed Forecast

Overnight
A 30 percent chance of showers after 5am. Patchy fog. Otherwise, cloudy, with a low around 36. East southeast wind around 5 mph.
Tuesday
Showers likely before 9am, then a slight chance of showers after 2pm. Patchy fog before noon. Otherwise, cloudy, with a high near 47. East southeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight. Cloudy, with a low around 38. East northeast wind 6 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.
Wednesday
A 50 percent chance of showers. Cloudy, with a high near 51. East wind 5 to 8 mph, with gusts as high as 16 mph.
Wednesday Night
Rain likely before 9pm, then rain likely and possibly a thunderstorm between 9pm and midnight, then rain after midnight. Low around 43. East northeast wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain likely before noon. Mostly cloudy, with a high near 60. Northeast wind 5 to 8 mph becoming west southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 45. Light south wind becoming southeast 5 to 9 mph after midnight. Winds could gust as high as 18 mph.
Friday
Rain. High near 75. Chance of precipitation is 80%.
Friday Night
Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Augustine IL
 40.72°N 90.42°W (Elev. 600 ft)
Last Update:
2:21 am CST Mar 3, 2026
Forecast Valid:
3am CST Mar 3, 2026-6pm CDT Mar 9, 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