National Weather Service United States Department of Commerce

Arctic air to drop temperatures across the northern Plain and northern Rockies; will bring snow to the Intermountain West

An arctic front is forecast to plunge through the northern Plains and northern Rockies on Saturday bringing a drastic drop in temperatures across these areas with a burst of snow over much of the Intermountain Region. Arctic air will also filter into the Pacific Northwest bringing with it snow showers and subfreezing low temperatures.
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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

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 41 °F

Saturday

Partly Sunny

Partly
Sunny

High: 61 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 54 °F

Sunday

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 64 °F

Sunday
Night

Chance Freezing Rain Chance for Measurable Precipitation 30%

Chance
Freezing Rain

Low: 24 °F

Monday

Slight Chance Freezing Rain Chance for Measurable Precipitation 20%

Slight Chance
Freezing Rain

High: 31 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 39 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 34 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 41. South wind around 10 mph.
  • Saturday Partly sunny, with a high near 61. South wind 9 to 15 mph.
  • Saturday Night Mostly cloudy, with a low around 54. South wind around 9 mph.
  • Sunday A 20 percent chance of rain. Mostly cloudy, with a high near 64. South wind 9 to 13 mph becoming northwest in the afternoon.
  • Sunday Night A chance of rain before 1am, then a slight chance of freezing rain. Mostly cloudy, with a low around 24. North wind 11 to 15 mph. Chance of precipitation is 30%.
  • Monday A slight chance of freezing rain. Partly sunny, with a high near 31. Chance of precipitation is 20%.
  • Monday Night Partly cloudy, with a low around 24.
  • Tuesday Mostly sunny, with a high near 39.
  • Tuesday Night Mostly cloudy, with a low around 34.
  • Wednesday Mostly sunny, with a high near 47.
  • Wednesday Night A slight chance of rain and snow. Mostly cloudy, with a low around 36. Chance of precipitation is 20%.
  • Thursday A 30 percent chance of rain. Mostly cloudy, with a high near 47.
  • Thursday Night A 30 percent chance of rain. Mostly cloudy, with a low around 41.
  • Friday A 20 percent chance of rain. Mostly cloudy, with a high near 48.