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.

Overcast

64°F

18°C

Humidity 90%
Wind Speed NE 10 mph
Barometer 30.27 in (1024.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 Sep 7:53 pm CDT
Extended Forecast for

Mason City IA

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 58. East northeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 10am. High near 68. East southeast wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 68 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Showers and thunderstorms, mainly before 1am, then showers and possibly a thunderstorm after 1am. Patchy fog before 1am. Steady temperature around 66. East southeast wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 66 °F

    T-storms and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely after 7am. Mostly cloudy, with a high near 71. North northeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 56. Northeast wind around 8 mph. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely after 1am. Cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 58. East northeast wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 10am. High near 68. East southeast wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Showers and thunderstorms, mainly before 1am, then showers and possibly a thunderstorm after 1am. Patchy fog before 1am. Steady temperature around 66. East southeast wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Saturday
A chance of showers and thunderstorms, then showers likely after 7am. Mostly cloudy, with a high near 71. North northeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56. Northeast wind around 8 mph. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 63. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, then showers likely after 1am. Cloudy, with a low around 52. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.15°N 93.19°W
Last Update:
7:51 pm CDT Sep 17, 2026
Forecast Valid:
8pm CDT Sep 17, 2026-6pm CDT Sep 24, 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