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.

Fog/Mist

69°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 69°F (21°C)
Visibility 3.00 mi
Last update 16 Jun 6:15 am CDT
Extended Forecast for

Altamont IL

  • Today

    Today: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 81. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 87. Calm wind becoming south southwest around 6 mph in the morning.

    High: 87 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 71. South southwest wind 5 to 7 mph.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 84. Southwest wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am. Mostly cloudy, with a low around 66. West southwest wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    T-storms
    Likely then
    Showers
    Likely

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. West northwest wind around 6 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 81. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 50%.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 87. Calm wind becoming south southwest around 6 mph in the morning.
Tuesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 71. South southwest wind 5 to 7 mph.
Wednesday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 84. Southwest wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am. Mostly cloudy, with a low around 66. West southwest wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Juneteenth
Sunny, with a high near 83. West northwest wind around 6 mph.
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 91.
Saturday Night
Mostly clear, with a low around 74.
Sunday
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:
4:55 am CDT Jun 16, 2025
Forecast Valid:
6am CDT Jun 16, 2025-6pm CDT Jun 22, 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