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

75°F

24°C

Humidity 81%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 15 Jun 1:35 pm CDT
Extended Forecast for

Altamont IL

  • This Afternoon

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

    High: 81 °F

    Mostly Cloudy

  • Tonight

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

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: Scattered showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 50%.

    High: 82 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 71. South wind 5 to 7 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Southwest wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 81. North northeast wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 68. Light east wind.
Monday
Scattered showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 71. South wind 5 to 7 mph.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Southwest wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Juneteenth
Mostly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 91.
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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:
1:40 pm CDT Jun 15, 2025
Forecast Valid:
1pm CDT Jun 15, 2025-6pm CDT Jun 21, 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