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

Hazardous Weather Conditions

Current conditions at

Logan County Airport (KAAA)

Lat: 40.16°NLon: 89.34°WElev: 591ft.

Drizzle

67°F

19°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.04 in
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 25 Jul 8:35 am CDT
Extended Forecast for

Mason City IL

Heat Advisory July 26, 12:00pm until July 27, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 84. South wind around 6 mph.

    High: 84 °F

    Chance
    Showers then
    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South southeast wind 3 to 6 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 93. Heat index values as high as 107. Light and variable wind becoming south southwest 5 to 7 mph in the morning.

    High: 93 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. South southwest wind 3 to 6 mph.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 96. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. Southwest wind 5 to 9 mph becoming north northwest after midnight. Winds could gust as high as 17 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91. North wind 6 to 8 mph, with gusts as high as 15 mph.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 84. South wind around 6 mph.
Tonight
Partly cloudy, with a low around 71. South southeast wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 93. Heat index values as high as 107. Light and variable wind becoming south southwest 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 75. South southwest wind 3 to 6 mph.
Monday
Sunny and hot, with a high near 96. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 74. Southwest wind 5 to 9 mph becoming north northwest after midnight. Winds could gust as high as 17 mph.
Tuesday
Mostly sunny, with a high near 91. North wind 6 to 8 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mason City IL
 40.2°N 89.7°W (Elev. 568 ft)
Last Update:
7:36 am CDT Jul 25, 2026
Forecast Valid:
8am CDT Jul 25, 2026-6pm CDT Jul 31, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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