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

57°F

14°C

Humidity 34%
Wind Speed W 18 G 24 mph
Barometer 29.95 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 13 Mar 3:55 pm CDT
Extended Forecast for

5 Miles S Altamont IL

  • Tonight

    Tonight: Partly cloudy, with a low around 33. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 17 mph.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57. Southeast wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 49. Southeast wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely after 1pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 18 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain before 1am, then a chance of snow. Low around 23. Breezy, with a south southwest wind 21 to 26 mph becoming west after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Breezy.
    Showers then
    Rain/Snow

  • Monday

    Monday: A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery, with a west northwest wind around 26 mph, with gusts as high as 34 mph.

    High: 26 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 11. Blustery, with a west northwest wind 15 to 21 mph, with gusts as high as 29 mph.

    Low: 11 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 17 mph.
Saturday
Partly sunny, with a high near 57. Southeast wind 6 to 13 mph, with gusts as high as 18 mph.
Saturday Night
Increasing clouds, with a low around 49. Southeast wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday
Showers likely after 1pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 18 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain before 1am, then a chance of snow. Low around 23. Breezy, with a south southwest wind 21 to 26 mph becoming west after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Monday
A 40 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery, with a west northwest wind around 26 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 11. Blustery, with a west northwest wind 15 to 21 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Altamont IL
 38.99°N 88.73°W (Elev. 584 ft)
Last Update:
3:37 pm CDT Mar 13, 2026
Forecast Valid:
4pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation