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

66°F

19°C

Humidity 75%
Wind Speed SE 5 mph
Barometer 29.88 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Oct 9:15 pm CDT
Extended Forecast for

4 Miles ENE Altamont IL

  • Tonight

    Tonight: Partly cloudy, with a low around 62. South wind around 8 mph, with gusts as high as 15 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 78. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Chance
    T-storms then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 49. Southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 49 °F

    Heavy Rain

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 61. West northwest wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 61 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Clear, with a low around 39. West wind 5 to 7 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. South southwest wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. South wind around 8 mph, with gusts as high as 15 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 78. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 49. Southwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Sunday
A 30 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 61. West northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Clear, with a low around 39. West wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 70. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 46. South southwest wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
A chance of showers. Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Altamont IL
 39.08°N 88.67°W (Elev. 577 ft)
Last Update:
8:01 pm CDT Oct 17, 2025
Forecast Valid:
9pm CDT Oct 17, 2025-6pm CDT Oct 24, 2025
 
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