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.

Overcast

34°F

1°C

Humidity 86%
Wind Speed E 3 mph
Barometer NA
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 14 Mar 4:15 am CDT
Extended Forecast for

Saint Augustine IL

  • Overnight

    Overnight: A 20 percent chance of snow. Mostly cloudy, with a low around 30. Northeast wind around 5 mph.

    Low: 30 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 10 percent chance of snow before 7am. Mostly cloudy, with a high near 51. East southeast wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 51 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 44. East southeast wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain, mainly after 7am. High near 64. Breezy, with a south wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Breezy. Rain
    Likely then
    Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow. Widespread blowing snow, mainly after 4am. Low around 15. Windy, with a northwest wind 22 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Rain/Snow and
    Patchy
    Blowing Snow
    then Snow and
    Blowing Snow

  • Monday

    Monday: A 50 percent chance of snow before 1pm. Widespread blowing snow, mainly before 7am. Cloudy, with a high near 23. Blustery, with a west northwest wind 24 to 28 mph, with gusts as high as 44 mph.

    High: 23 °F

    Chance Snow
    and Blowing
    Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around 4. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 31 mph.

    Low: 4 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.

    Low: 21 °F

    Snow Likely

Detailed Forecast

Overnight
A 20 percent chance of snow. Mostly cloudy, with a low around 30. Northeast wind around 5 mph.
Saturday
A 10 percent chance of snow before 7am. Mostly cloudy, with a high near 51. East southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Saturday Night
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 44. East southeast wind 13 to 16 mph, with gusts as high as 28 mph.
Sunday
Rain, mainly after 7am. High near 64. Breezy, with a south wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain before 10pm, then snow. Widespread blowing snow, mainly after 4am. Low around 15. Windy, with a northwest wind 22 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday
A 50 percent chance of snow before 1pm. Widespread blowing snow, mainly before 7am. Cloudy, with a high near 23. Blustery, with a west northwest wind 24 to 28 mph, with gusts as high as 44 mph.
Monday Night
Partly cloudy, with a low around 4. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Augustine IL
 40.7°N 90.43°W (Elev. 551 ft)
Last Update:
3:46 am CDT Mar 14, 2026
Forecast Valid:
4am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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