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.

A Few Clouds

68°F

20°C

Humidity 93%
Wind Speed NE 6 mph
Barometer 30.00 in (1014.9 mb)
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 13 Aug 10:53 pm CDT
Extended Forecast for

Mason City Municipal Airport IA

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a steady temperature around 68. East wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 76. Breezy, with an east wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 66. East southeast wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Heavy Rain

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 81. East wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. Northwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a steady temperature around 68. East wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 76. Breezy, with an east wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 66. East southeast wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 81. East wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. Northwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 77.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City Municipal Airport IA
 43.15°N 93.34°W
Last Update:
9:57 pm CDT Aug 13, 2026
Forecast Valid:
11pm CDT Aug 13, 2026-6pm CDT Aug 20, 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