National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

63°F

17°C

Humidity 50%
Wind Speed NW 9 mph
Barometer 29.97 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 13 May 4:15 am CDT
Extended Forecast for

4 Miles SSW Altamont IL

  • Today

    Today: Sunny, with a high near 70. Northwest wind 8 to 17 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. North northwest wind 5 to 10 mph becoming light north in the evening. Winds could gust as high as 18 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Light and variable wind.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am. Increasing clouds, with a low around 53. Light south southeast wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 16 mph.

    Low: 53 °F

    Mostly Clear
    then Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 77. South southeast wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. South wind around 8 mph, with gusts as high as 15 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South southwest wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Northwest wind 8 to 17 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 45. North northwest wind 5 to 10 mph becoming light north in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 71. Light and variable wind.
Thursday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 53. Light south southeast wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 16 mph.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 77. South southeast wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 63. South wind around 8 mph, with gusts as high as 15 mph.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South southwest wind 6 to 9 mph, with gusts as high as 15 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Breezy.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Altamont IL
 38.99°N 88.76°W (Elev. 600 ft)
Last Update:
3:36 am CDT May 13, 2026
Forecast Valid:
4am CDT May 13, 2026-6pm CDT May 19, 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