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

81°F

27°C

Humidity 74%
Wind Speed SE 15 mph
Barometer 29.76 in (1006.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 9 Jun 9:53 pm CDT
Extended Forecast for

Sheffield IA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 1am and 4am. Mostly cloudy, with a low around 70. South wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 9am. Mostly sunny, with a high near 89. Windy, with a south southwest wind 18 to 25 mph, with gusts as high as 32 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms and
    Windy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Increasing clouds, with a low around 60. Breezy, with a west southwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms and
    Breezy then
    Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 77. Breezy, with a light and variable wind becoming north northwest 12 to 17 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 54. West wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Clear

  • Friday

    Friday: Sunny, with a high near 82. Breezy.

    High: 82 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

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

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 1am and 4am. Mostly cloudy, with a low around 70. South wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 9am. Mostly sunny, with a high near 89. Windy, with a south southwest wind 18 to 25 mph, with gusts as high as 32 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Increasing clouds, with a low around 60. Breezy, with a west southwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm. High near 77. Breezy, with a light and variable wind becoming north northwest 12 to 17 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A slight chance of thunderstorms before 7pm. Mostly clear, with a low around 54. West wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Friday
Sunny, with a high near 82. Breezy.
Friday Night
Mostly clear, with a low around 58.
Saturday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Saturday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sheffield IA
 42.89°N 93.23°W
Last Update:
9:44 pm CDT Jun 9, 2026
Forecast Valid:
10pm CDT Jun 9, 2026-6pm CDT Jun 16, 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