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

Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

86°F

30°C

Humidity 70%
Wind Speed S 10 mph
Barometer 29.91 in (1011.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 28 Jun 5:53 pm CDT
Extended Forecast for

Mason City IA

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 87. South southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 64. Northwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely

  • Monday

    Monday: Sunny, with a high near 82. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60. West northwest wind 6 to 9 mph.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Partly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 87. South southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 64. Northwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Sunny, with a high near 82. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 60. West northwest wind 6 to 9 mph.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 66.
Independence Day
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.15°N 93.19°W
Last Update:
5:05 pm CDT Jun 28, 2025
Forecast Valid:
6pm CDT Jun 28, 2025-6pm CDT Jul 5, 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