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.

Overcast

70°F

21°C

Humidity 92%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 15 Jun 11:15 am CDT
Extended Forecast for

4 Miles ENE Altamont IL

  • Today

    Today: Mostly cloudy, with a high near 81. North wind 3 to 5 mph.

    High: 81 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. Light east northeast wind.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: Isolated showers, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 83. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 1am. Increasing clouds, with a low around 70. South wind 5 to 7 mph.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. Southwest wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 81. North wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 68. Light east northeast wind.
Monday
Isolated showers, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 83. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 67. Calm wind.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming south southwest 5 to 7 mph in the morning.
Tuesday Night
A 40 percent chance of showers after 1am. Increasing clouds, with a low around 70. South wind 5 to 7 mph.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83. Southwest wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.
Juneteenth
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Altamont IL
 39.08°N 88.67°W (Elev. 577 ft)
Last Update:
11:12 am CDT Jun 15, 2025
Forecast Valid:
11am CDT Jun 15, 2025-6pm CDT Jun 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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