National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

63°F

17°C

Humidity 78%
Wind Speed S 14 mph
Barometer 29.76 in (1006.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 22 Apr 10:53 pm CDT
Extended Forecast for

Sheffield IA

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Breezy, with a south wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 58 °F

    Increasing
    Clouds and
    Breezy

  • Thursday

    Thursday: Patchy drizzle before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 71. Windy, with a south wind 18 to 26 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Windy. Patchy
    Drizzle then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Low around 46. Breezy, with a south wind 10 to 18 mph becoming north northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 46 °F

    T-storms and
    Breezy then
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 63. Breezy, with a north northwest wind 14 to 16 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40. North wind 7 to 10 mph.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 66. Windy.

    High: 66 °F

    Partly Sunny
    then Chance
    Showers and
    Windy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm, then showers after 1am. Low around 49. Windy. Chance of precipitation is 80%.

    Low: 49 °F

    Showers and
    Windy

Detailed Forecast

Tonight
Increasing clouds, with a low around 58. Breezy, with a south wind 13 to 17 mph, with gusts as high as 26 mph.
Thursday
Patchy drizzle before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 71. Windy, with a south wind 18 to 26 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Low around 46. Breezy, with a south wind 10 to 18 mph becoming north northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Sunny, with a high near 63. Breezy, with a north northwest wind 14 to 16 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 40. North wind 7 to 10 mph.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 66. Windy.
Sunday Night
Showers likely and possibly a thunderstorm, then showers after 1am. Low around 49. Windy. Chance of precipitation is 80%.
Monday
Showers likely. Mostly cloudy, with a high near 61. Windy. Chance of precipitation is 70%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 40. Windy.
Tuesday
Partly sunny, with a high near 59. Breezy.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Sheffield IA
 42.89°N 93.23°W
Last Update:
10:36 pm CDT Apr 22, 2026
Forecast Valid:
11pm CDT Apr 22, 2026-6pm CDT Apr 29, 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