National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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Current Conditions

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9 Miles SSW Sumpter OR

7 Day Forecast

For More Weather Information:

Boise, ID Local Forecast Office

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 40 °F

Friday

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

High: 60 °F

Friday
Night

Showers Chance for Measurable Precipitation 90%

Showers

Low: 37 °F

Saturday

Rain/Snow Chance for Measurable Precipitation 90%

Rain/Snow

High: 47 °F

Saturday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 30 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 45 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 27 °F

Monday

Partly Sunny

Partly
Sunny

High: 50 °F

Monday
Night

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

Low: 34 °F

Detailed Forecast

  • Tonight Mostly cloudy, with a low around 40. East southeast wind 3 to 5 mph.
  • Friday A chance of showers between 11am and 5pm, then a chance of showers and thunderstorms after 5pm. Cloudy, with a high near 60. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 40%.
  • Friday Night Showers and possibly a thunderstorm. Low around 37. South wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 90%.
  • Saturday Rain showers before 11am, then rain and snow showers likely. High near 47. West northwest wind 3 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
  • Saturday Night A chance of rain and snow, mainly before 11pm. Mostly cloudy, with a low around 30. Northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
  • Sunday Mostly sunny, with a high near 45.
  • Sunday Night Partly cloudy, with a low around 27.
  • Monday Partly sunny, with a high near 50.
  • Monday Night A 20 percent chance of rain. Mostly cloudy, with a low around 34.
  • Tuesday A 30 percent chance of rain. Mostly cloudy, with a high near 49.
  • Tuesday Night A 20 percent chance of rain. Mostly cloudy, with a low around 32.
  • Wednesday A 20 percent chance of rain. Mostly cloudy, with a high near 51.
  • Wednesday Night A 20 percent chance of rain. Mostly cloudy, with a low around 33.
  • Thursday A 20 percent chance of rain. Mostly cloudy, with a high near 53.