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

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Partly Cloudy

76°F

24°C

Humidity 85%
Wind Speed NE 3 mph
Barometer 30.02 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 15 Jun 8:55 pm CDT
Extended Forecast for

Mason City IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Light east wind.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: Isolated showers and thunderstorms after 1pm. Partly sunny, with a high near 85. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 85 °F

    Partly Sunny
    then Isolated
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. Light south southeast wind.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90. Southeast wind 5 to 7 mph becoming southwest in the morning.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind around 7 mph, with gusts as high as 17 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely. Mostly cloudy, with a high near 85. South southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 67. Light east wind.
Monday
Isolated showers and thunderstorms after 1pm. Partly sunny, with a high near 85. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 67. Light south southeast wind.
Tuesday
Mostly sunny, with a high near 90. Southeast wind 5 to 7 mph becoming southwest in the morning.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South southwest wind around 7 mph, with gusts as high as 17 mph.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 85. South southwest wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. West wind 6 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mason City IL
 40.2°N 89.7°W (Elev. 568 ft)
Last Update:
6:56 pm CDT Jun 15, 2025
Forecast Valid:
9pm CDT Jun 15, 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