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

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

69°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 29.96 in (1013.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 2 Sep 10:53 am CDT
Extended Forecast for

3 Miles W Mason City IA

  • Today

    Today: A slight chance of showers and thunderstorms between noon and 1pm. Mostly sunny, with a high near 88. Light and variable wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. South southeast wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 11am. Partly sunny, then gradually becoming sunny, with a high near 85. Southeast wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely then
    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70. South southeast wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers and thunderstorms between noon and 1pm. Mostly sunny, with a high near 88. Light and variable wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. South southeast wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely, mainly before 11am. Partly sunny, then gradually becoming sunny, with a high near 85. Southeast wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70. South southeast wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. South wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68.
Sunday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85.
Sunday Night
A 40 percent chance of showers. Partly cloudy, with a low around 65.
Labor Day
A 30 percent chance of showers. Partly sunny, with a high near 81.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Mason City IA
 43.15°N 93.25°W
Last Update:
11:47 am CDT Sep 2, 2026
Forecast Valid:
11am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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