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

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fog/Mist

23°F

-5°C

Humidity 97%
Wind Speed S 3 mph
Barometer 29.78 in
Dewpoint 22°F (-6°C)
Visibility 5.00 mi
Last update 6 Feb 3:55 am CST
Extended Forecast for

Altamont IL

  • Today

    Today: Partly sunny, with a high near 41. Breezy, with a west southwest wind 10 to 20 mph becoming north northwest in the morning. Winds could gust as high as 29 mph.

    High: 41 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 15. North wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 15 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 29. North northeast wind around 6 mph becoming calm in the morning.

    High: 29 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 20. Calm wind becoming south southeast 5 to 8 mph in the evening. Winds could gust as high as 15 mph.

    Low: 20 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 42. South wind 6 to 9 mph, with gusts as high as 16 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. Southeast wind 3 to 5 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Today
Partly sunny, with a high near 41. Breezy, with a west southwest wind 10 to 20 mph becoming north northwest in the morning. Winds could gust as high as 29 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 15. North wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 29. North northeast wind around 6 mph becoming calm in the morning.
Saturday Night
Increasing clouds, with a low around 20. Calm wind becoming south southeast 5 to 8 mph in the evening. Winds could gust as high as 15 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 42. South wind 6 to 9 mph, with gusts as high as 16 mph.
Sunday Night
Partly cloudy, with a low around 26. Southeast wind 3 to 5 mph.
Monday
Sunny, with a high near 51. Light and variable wind.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 58.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Mostly cloudy, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.73°W (Elev. 600 ft)
Last Update:
3:17 am CST Feb 6, 2026
Forecast Valid:
4am CST Feb 6, 2026-6pm CST Feb 12, 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