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

68°F

20°C

Humidity 96%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Jun 10:55 pm CDT
Extended Forecast for

Altamont IL

  • Tonight

    Tonight: Clear, with a low around 65. Light south southwest wind.

    Low: 65 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Heat index values as high as 101. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 75. South wind 7 to 10 mph, with gusts as high as 17 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 92. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South wind around 7 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 65. Light south southwest wind.
Friday
Sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 73. South wind around 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 92. Heat index values as high as 101. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Clear, with a low around 75. South wind 7 to 10 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 92. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 74. South wind around 7 mph.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
A chance of showers and thunderstorms. Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.08°N 88.76°W (Elev. 633 ft)
Last Update:
5:55 pm CDT Jun 19, 2025
Forecast Valid:
11pm CDT Jun 19, 2025-6pm CDT Jun 26, 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