Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

67°F

19°C

Humidity	97%
Wind Speed	S 5 mph
Barometer	29.98 in (1014.5 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	27 Jun 10:53 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Sheffield IA

Tonight
Low: 62 °F
Partly Cloudy
Saturday
High: 89 °F
Mostly Sunny
Saturday Night
Low: 70 °F
Chance
T-storms
Sunday
High: 85 °F
Chance
T-storms then
Heavy Rain
Sunday Night
Low: 64 °F
Chance
T-storms then
Chance
Showers
Monday
High: 81 °F
Mostly Sunny
Monday Night
Low: 60 °F
Clear
Tuesday
High: 83 °F
Sunny
Tuesday Night
Low: 62 °F
Mostly Clear

Detailed Forecast

Tonight

Partly cloudy, with a low around 62. Calm wind becoming south southeast around 6 mph after midnight.

Saturday

Mostly sunny, with a high near 89. South wind 7 to 15 mph, with gusts as high as 22 mph.

Saturday Night

A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 70. South wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 85. South southwest wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

Sunday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. North wind around 6 mph becoming light and variable. New rainfall amounts between a quarter and half of an inch possible.

Monday

Mostly sunny, with a high near 81.

Monday Night

Clear, with a low around 60.

Tuesday

Sunny, with a high near 83.

Tuesday Night

Mostly clear, with a low around 62.

Wednesday

A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 82.

Wednesday Night

A 50 percent chance of showers. Partly cloudy, with a low around 63.