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

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

65°F

18°C

Humidity 90%
Wind Speed Calm
Barometer 30.12 in (1019.1 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 8:53 pm CDT
Extended Forecast for

Mason City IA

  • Tonight

    Tonight: Scattered sprinkles before 10pm. Partly cloudy, with a low around 56. Light east southeast wind.

    Low: 56 °F

    Scattered
    Sprinkles

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. South southeast wind 3 to 6 mph.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Calm wind becoming south southeast around 5 mph.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. Light east southeast wind.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: A 20 percent chance of showers. Mostly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered sprinkles before 10pm. Partly cloudy, with a low around 56. Light east southeast wind.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. South southeast wind 3 to 6 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 57. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Calm wind becoming south southeast around 5 mph.
Saturday Night
Mostly cloudy, with a low around 57. Light east southeast wind.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 72.
Sunday Night
Mostly cloudy, with a low around 55.
Labor Day
A 20 percent chance of showers. Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 61.
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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:
7:04 pm CDT Aug 28, 2025
Forecast Valid:
9pm CDT Aug 28, 2025-6pm CDT Sep 4, 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