National Weather Service United States Department of Commerce

Unsettled weather forecast across eastern U.S.

A storm system moving across the Great Lakes will bring unsettled weather to parts of the eastern U.S. on Monday, with widespread rain is expected across much of the Northeast. Snow is likely across Wisconsin and the western Great Lakes. Snow is also expected across the central and northern Rockies Monday into Tuesday.
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Current Conditions

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Mason City Municipal Airport IA

7 Day Forecast

For More Weather Information:

Des Moines, IA Local Forecast Office

This
Afternoon

Snow Chance for Measurable Precipitation 80%

Snow

High: 21 °F

Tonight

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 12 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 29 °F

Tuesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 22 °F

Wednesday

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

High: 30 °F

Wednesday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 10 °F

Thanksgiving
Day

Mostly Sunny

Mostly
Sunny

High: 17 °F

Thursday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 12 °F

Friday

Partly Sunny

Partly
Sunny

High: 29 °F

Detailed Forecast

  • This Afternoon Snow. Steady temperature around 21. Wind chill values as low as 5. Windy, with a northwest wind 25 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
  • Tonight A 50 percent chance of snow, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 12. Wind chill values as low as -5. Windy, with a northwest wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 37 mph. New snow accumulation of less than a half inch possible.
  • Tuesday Mostly sunny, with a high near 29. Wind chill values as low as -5. West northwest wind 8 to 14 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
  • Tuesday Night Snow likely, mainly after 1am. Increasing clouds, with a low around 22. South wind 8 to 10 mph becoming east after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
  • Wednesday Snow likely, mainly before 1pm. Cloudy, with a high near 30. East northeast wind 9 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
  • Wednesday Night A 30 percent chance of snow before 7pm. Mostly cloudy, with a low around 10.
  • Thanksgiving Day Mostly sunny, with a high near 17.
  • Thursday Night Mostly cloudy, with a low around 12.
  • Friday Partly sunny, with a high near 29.
  • Friday Night Mostly cloudy, with a low around 21.
  • Saturday Partly sunny, with a high near 30.
  • Saturday Night Partly cloudy, with a low around 13.
  • Sunday Mostly sunny, with a high near 26.