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

66°F

19°C

Humidity 93%
Wind Speed S 7 mph
Barometer 30.00 in (1014.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Aug 4:53 am CDT
Extended Forecast for

Mason City IA

  • Overnight

    Overnight: Isolated showers and thunderstorms. Mostly cloudy, with a low around 66. South southeast wind around 7 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Isolated
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 70. South wind around 7 mph. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 89. Heat index values as high as 103. South wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms

  • Sunday

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

    High: 87 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 66. South southeast wind around 7 mph. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South wind 6 to 10 mph, with gusts as high as 18 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 70. South wind around 7 mph. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 89. Heat index values as high as 103. South wind 6 to 8 mph. 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. Partly cloudy, with a low around 69. Southeast wind around 6 mph. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 82.
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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:
4:35 am CDT Aug 15, 2025
Forecast Valid:
5am CDT Aug 15, 2025-6pm CDT Aug 21, 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