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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Lambert-St. Louis International Airport MO

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 37 °F

Monday

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

High: 50 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 42 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

High: 50 °F

Tuesday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 35 °F

Wednesday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 39 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 31 °F

Christmas
Day

Mostly Sunny

Mostly
Sunny

High: 47 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 36 °F

Detailed Forecast

  • Tonight Mostly cloudy, with a low around 37. Southeast wind around 10 mph.
  • Monday Rain likely, mainly after 9am. Cloudy, with a high near 50. South wind 9 to 14 mph. Chance of precipitation is 70%.
  • Monday Night A 50 percent chance of rain. Cloudy, with a low around 42. South wind 6 to 10 mph.
  • Tuesday A 30 percent chance of rain. Cloudy, with a high near 50. Southwest wind 5 to 9 mph.
  • Tuesday Night A 50 percent chance of rain. Cloudy, with a low around 35. Northwest wind 7 to 9 mph.
  • Wednesday A chance of rain and snow. Cloudy, with a high near 39. Chance of precipitation is 40%.
  • Wednesday Night Mostly cloudy, with a low around 31.
  • Christmas Day Mostly sunny, with a high near 47.
  • Thursday Night Partly cloudy, with a low around 36.
  • Friday A slight chance of rain and snow. Partly sunny, with a high near 43. Chance of precipitation is 20%.
  • Friday Night Mostly cloudy, with a low around 27.
  • Saturday Mostly sunny, with a high near 36.
  • Saturday Night Partly cloudy, with a low around 27.
  • Sunday Mostly sunny, with a high near 38.