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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Saint Louis MO

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

This
Afternoon

Cloudy

Cloudy

High: 6 °C

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 3 °C

Monday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 10 °C

Monday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 6 °C

Tuesday

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

High: 9 °C

Tuesday
Night

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

Low: 1 °C

Wednesday

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

High: 2 °C

Wednesday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: -1 °C

Christmas
Day

Mostly Sunny

Mostly
Sunny

High: 7 °C

Detailed Forecast

  • This Afternoon Cloudy, with a high near 6. South wind around 14 km/h.
  • Tonight Mostly cloudy, with a low around 3. Southeast wind around 14 km/h.
  • Monday A 50 percent chance of rain after 7am. Cloudy, with a high near 10. South wind 14 to 23 km/h.
  • Monday Night Rain likely, mainly after 7pm. Cloudy, with a low around 6. South wind 16 to 21 km/h becoming southwest 10 to 15 km/h after midnight. Chance of precipitation is 70%.
  • Tuesday Rain likely, mainly before 7am. Cloudy, with a high near 9. West wind 10 to 14 km/h. Chance of precipitation is 70%.
  • Tuesday Night Rain likely before 4am, then rain and snow likely. Cloudy, with a low around 1. Chance of precipitation is 60%.
  • Wednesday Rain and snow likely before 7am, then a chance of snow. Cloudy, with a high near 2. Chance of precipitation is 60%.
  • Wednesday Night A 50 percent chance of snow. Mostly cloudy, with a low around -1.
  • Christmas Day Mostly sunny, with a high near 7.
  • Thursday Night Partly cloudy, with a low around 2.
  • Friday A 20 percent chance of rain. Partly sunny, with a high near 8.
  • Friday Night A slight chance of rain and snow. Mostly cloudy, with a low around -3. Chance of precipitation is 20%.
  • Saturday A 20 percent chance of snow. Mostly sunny, with a high near 2.