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

Hazardous Weather Conditions

Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

90°F

32°C

Humidity 66%
Wind Speed S 13 mph
Barometer 29.98 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 18 Aug 1:55 pm CDT
Extended Forecast for

Galva IL

Heat Advisory August 18, 02:02pm until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 02:02pm until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind 5 to 7 mph.

    Low: 71 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 10am. Partly sunny, with a high near 86. West wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 16 mph.

    High: 86 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68. North northeast wind around 6 mph.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. North northeast wind 6 to 10 mph, with gusts as high as 15 mph.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. North northeast wind 5 to 8 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Northeast wind around 6 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 103. South southwest wind around 11 mph, with gusts as high as 18 mph.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind 5 to 7 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before 10am. Partly sunny, with a high near 86. West wind 7 to 10 mph becoming north in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
Partly cloudy, with a low around 68. North northeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 81. North northeast wind 6 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 61. North northeast wind 5 to 8 mph.
Thursday
Sunny, with a high near 82. Northeast wind around 6 mph.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Sunny, with a high near 79.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galva IL
 41.15°N 90.03°W (Elev. 827 ft)
Last Update:
1:55 pm CDT Aug 18, 2025
Forecast Valid:
2pm CDT Aug 18, 2025-6pm CDT Aug 24, 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