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

61°F

16°C

Humidity 38%
Wind Speed SW 7 mph
Barometer 30.20 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 9 Nov 10:55 am CST
Extended Forecast for

Mason IL

  • Today

    Today: Sunny, with a high near 66. Calm wind becoming southwest around 5 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 42. Light southwest wind.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. West wind around 5 mph becoming calm in the afternoon.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Rain likely after noon. Partly sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Mostly Sunny
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 40. North northwest wind 7 to 15 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 51. North northwest wind 15 to 18 mph, with gusts as high as 25 mph.

    High: 51 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Calm wind becoming southwest around 5 mph.
Tonight
Clear, with a low around 42. Light southwest wind.
Tuesday
Sunny, with a high near 69. West wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Veterans Day
Rain likely after noon. Partly sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 40. North northwest wind 7 to 15 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 51. North northwest wind 15 to 18 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 50.
Saturday Night
Clear, with a low around 31.
Sunday
Sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mason IL
 38.94°N 88.62°W (Elev. 564 ft)
Last Update:
10:21 am CST Nov 9, 2026
Forecast Valid:
11am CST Nov 9, 2026-6pm CST Nov 15, 2026
 
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