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

58°F

14°C

Humidity 76%
Wind Speed NW 10 G 20 mph
Barometer 30.10 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 19 May 7:35 pm CDT
Extended Forecast for

Saint Augustine IL

  • Tonight

    Tonight: Scattered sprinkles before 9pm. Mostly cloudy, with a low around 48. North northwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Scattered
    Sprinkles

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. North northeast wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. East northeast wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 70. East wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 48. East wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 65. East northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 51. East northeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Scattered sprinkles before 9pm. Mostly cloudy, with a low around 48. North northwest wind 8 to 11 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 67. North northeast wind 8 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 43. East northeast wind 6 to 8 mph, with gusts as high as 18 mph.
Thursday
Partly sunny, with a high near 70. East wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 48. East wind 8 to 10 mph, with gusts as high as 21 mph.
Friday
Showers likely. Mostly cloudy, with a high near 65. East northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 51. East northeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Saturday
Mostly cloudy, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 56.
Memorial Day
Partly sunny, with a high near 83.
Monday Night
Mostly cloudy, with a low around 60.
Tuesday
Partly sunny, with a high near 85.
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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:
6:11 pm CDT May 19, 2026
Forecast Valid:
7pm CDT May 19, 2026-6pm CDT May 26, 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