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

74°F

23°C

Humidity 95%
Wind Speed E 3 mph
Barometer 30.11 in
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 8 Aug 7:35 am CDT
Extended Forecast for

Altamont IL

  • Today

    Today: Sunny, with a high near 90. South southeast wind 5 to 8 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. Southeast wind around 6 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. South wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South southeast wind 3 to 6 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. South wind 5 to 7 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South southeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming south around 6 mph in the morning.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 90. South southeast wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 71. Southeast wind around 6 mph.
Saturday
Sunny, with a high near 89. South wind 6 to 10 mph, with gusts as high as 16 mph.
Saturday Night
Mostly clear, with a low around 71. South southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 89. South wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 70. South southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 89. Calm wind becoming south around 6 mph in the morning.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.76°W (Elev. 636 ft)
Last Update:
7:40 am CDT Aug 8, 2025
Forecast Valid:
8am CDT Aug 8, 2025-6pm CDT Aug 14, 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