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.

Fair

37°F

3°C

Humidity 98%
Wind Speed Calm
Barometer 30.33 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 3 Nov 10:35 pm CST
Extended Forecast for

Altamont IL

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 67. Light southeast wind becoming south 11 to 16 mph in the morning. Winds could gust as high as 23 mph.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 37. North northwest wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 62. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 49. South southeast wind around 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 40 percent chance of rain before noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Chance Rain
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. Light and variable wind.
Tuesday
Sunny, with a high near 67. Light southeast wind becoming south 11 to 16 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 49. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 70. Southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Clear, with a low around 37. North northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 62. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 49. South southeast wind around 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Friday
A 40 percent chance of rain before noon. Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.76°W (Elev. 636 ft)
Last Update:
9:31 pm CST Nov 3, 2025
Forecast Valid:
10pm CST Nov 3, 2025-6pm CST Nov 10, 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