National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the Pacific Northwest through late Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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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

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 38 °F

Tonight

Rain Chance for Measurable Precipitation 80%

Rain

Low: 35 °F

Monday

Rain/Snow Chance for Measurable Precipitation 90%

Rain/Snow

High: 37 °F

Monday
Night

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 31 °F

Tuesday

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

High: 34 °F

Tuesday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 25 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 32 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 21 °F

Christmas
Day

Mostly Cloudy

Mostly
Cloudy

High: 32 °F

Detailed Forecast

  • This Afternoon A 20 percent chance of rain. Patchy fog. Otherwise, cloudy, with a high near 38. Breezy, with a south wind around 17 mph, with gusts as high as 25 mph.
  • Tonight Periods of rain, mainly after 2am. Patchy fog. Low around 35. Breezy, with a south southeast wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
  • Monday Rain before 7am, then rain and snow between 7am and 1pm, then rain after 1pm. High near 37. Breezy, with a southeast wind 10 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
  • Monday Night A chance of rain and snow. Cloudy, with a low around 31. East southeast wind 5 to 10 mph becoming light east northeast after midnight. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
  • Tuesday A chance of snow before noon, then a chance of rain and snow. Cloudy, with a high near 34. Light and variable wind becoming northwest 8 to 13 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
  • Tuesday Night A 40 percent chance of snow. Cloudy, with a low around 25. Blustery.
  • Wednesday A 20 percent chance of snow. Cloudy, with a high near 32. Breezy.
  • Wednesday Night Mostly cloudy, with a low around 21.
  • Christmas Day Mostly cloudy, with a high near 32.
  • Thursday Night A 30 percent chance of snow. Mostly cloudy, with a low around 22.
  • Friday Mostly cloudy, with a high near 23. Blustery.
  • Friday Night Mostly cloudy, with a low around 8. Blustery.
  • Saturday Mostly sunny, with a high near 20.