Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Fair
2°C
36°F
| Humidity | 59% |
| Wind Speed | Calm |
| Barometer | 1023.4 mb (30.22 in) |
| Dewpoint | -5°C (23°F) |
| Visibility | 16 km |
| Last update | 11 May 6:53 am CDT |
Extended Forecast for
Sheffield IA
Frost Advisory May 11, 07:45am until May 11, 08:00am
NOW until 8:00am Mon
Frost Advisory
Today
High: 21 °C
Increasing
CloudsTonight
Low: 12 °C
Breezy.
Partly Cloudy
then Chance
ShowersTuesday
High: 25 °C
Windy. Chance
Showers then
Becoming
SunnyTuesday Night
Low: 8 °C
Clear and
Windy then
ClearWednesday
High: 22 °C
Sunny and
WindyWednesday Night
Low: 6 °C
Mostly Clear
Thursday
High: 25 °C
Mostly Sunny
and WindyThursday Night
Low: 12 °C
Chance
T-storms and
Windy
Detailed Forecast
Today
Increasing clouds, with a high near 21. Calm wind becoming south southeast 5 to 8 km/h in the afternoon.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 12. Breezy, with a south southeast wind 16 to 21 km/h increasing to 27 to 32 km/h after midnight. Winds could gust as high as 40 km/h. Chance of precipitation is 30%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 11am. Mostly cloudy, then gradual clearing during the afternoon, with a high near 25. Windy, with a south wind 35 to 42 km/h becoming northwest in the afternoon. Winds could gust as high as 50 km/h. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Tuesday Night
Clear, with a low around 8. Windy, with a northwest wind 29 to 39 km/h decreasing to 18 to 28 km/h after midnight. Winds could gust as high as 47 km/h.
Wednesday
Sunny, with a high near 22. Windy, with a north northwest wind 23 to 28 km/h increasing to 29 to 34 km/h in the morning. Winds could gust as high as 42 km/h.
Wednesday Night
Mostly clear, with a low around 6.
Thursday
Mostly sunny, with a high near 25. Windy.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 12. Windy.
Friday
Mostly sunny, with a high near 27. Breezy.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 13.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 26. Breezy.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sheffield IA
42.89°N 93.23°W
42.89°N 93.23°W
6:26 am CDT May 11, 2026
7am CDT May 11, 2026-6pm CDT May 17, 2026
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