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.

Partly Cloudy

75°F

24°C

Humidity 71%
Wind Speed S 15 G 22 mph
Barometer 30.02 in (1015.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 Jul 2:53 pm CDT
Extended Forecast for

Mason City IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 75. South wind around 9 mph.

    High: 75 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 66. South southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, with a high near 80. Light and variable wind becoming north northwest 5 to 7 mph in the morning. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    T-storms then
    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 60. North wind around 6 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 78. East southeast wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81.

    High: 81 °F

    Slight Chance
    T-storms

  • Monday Night

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

    Low: 68 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 75. South wind around 9 mph.
Tonight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 66. South southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, with a high near 80. Light and variable wind becoming north northwest 5 to 7 mph in the morning. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 60. North wind around 6 mph. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 78. East southeast wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 81.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87.
Tuesday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 87.
Wednesday Night
A 50 percent chance of showers. Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.15°N 93.19°W
Last Update:
2:53 pm CDT Jul 18, 2025
Forecast Valid:
3pm CDT Jul 18, 2025-6pm CDT Jul 24, 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