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

68°F

20°C

Humidity 87%
Wind Speed S 9 mph
Barometer 29.78 in (1007.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 13 Apr 10:53 am CDT
Extended Forecast for

Mason City IA

  • Today

    Today: A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 54. South wind 6 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. North wind 3 to 8 mph. Chance of precipitation is 40%.

    High: 75 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 71. East northeast wind 6 to 11 mph becoming south southeast in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 50. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 74. Chance of precipitation is 20%.

    High: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Windy. Chance of precipitation is 60%.

    High: 78 °F

    Mostly Sunny
    and Breezy
    then Showers
    Likely and
    Windy

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 54. South wind 6 to 15 mph becoming west after midnight. Winds could gust as high as 23 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. North wind 3 to 8 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. North wind 6 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 71. East northeast wind 6 to 11 mph becoming south southeast in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 50. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 55.
Friday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Windy. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 37. Breezy.
Saturday
Partly sunny, with a high near 49. Breezy.
Saturday Night
Partly cloudy, with a low around 29. Blustery.
Sunday
Sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Mason City IA
 43.15°N 93.19°W
Last Update:
11:17 am CDT Apr 13, 2026
Forecast Valid:
11am CDT Apr 13, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation