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.

Mostly Cloudy

82°F

28°C

Humidity 76%
Wind Speed S 3 mph
Barometer 29.89 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 17 Jun 1:55 pm CDT
Extended Forecast for

Mason IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 86. South wind around 6 mph.

    High: 86 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 72. South wind 3 to 6 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. High near 86. South southwest wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms then
    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 66. Southwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Severe
    Thunderstorms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 81. West northwest wind around 6 mph.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 86. South wind around 6 mph.
Tonight
Partly cloudy, with a low around 72. South wind 3 to 6 mph.
Wednesday
Showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. High near 86. South southwest wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 66. Southwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Juneteenth
Mostly sunny, with a high near 81. West northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 65. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming south southwest 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mason IL
 38.94°N 88.62°W (Elev. 564 ft)
Last Update:
2:11 pm CDT Jun 17, 2025
Forecast Valid:
2pm CDT Jun 17, 2025-6pm CDT Jun 23, 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