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.

Overcast

33°F

1°C

Humidity 94%
Wind Speed N 6 mph
Barometer 30.21 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 7 Dec 5:55 pm CST
Extended Forecast for

Altamont IL

  • Tonight

    Tonight: A 20 percent chance of snow before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 19. North northeast wind 6 to 10 mph, with gusts as high as 17 mph.

    Low: 19 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 31. North wind around 6 mph becoming calm in the morning.

    High: 31 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Light southwest wind becoming south southwest 8 to 13 mph after midnight. Winds could gust as high as 20 mph.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Southwest wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 44. West northwest wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 44 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. Northwest wind 3 to 7 mph.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 19. North northeast wind 6 to 10 mph, with gusts as high as 17 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 31. North wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 21. Light southwest wind becoming south southwest 8 to 13 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Partly sunny, with a high near 46. Southwest wind 11 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.
Wednesday
Mostly cloudy, with a high near 44. West northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 23. Northwest wind 3 to 7 mph.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 3.
Saturday
Partly sunny, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
Mostly sunny, with a high near 21.
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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:
3:16 pm CST Dec 7, 2025
Forecast Valid:
6pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation