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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Waterloo IL

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Tonight

Partly Cloudy

Partly
Cloudy

Low: 41 °F

Saturday

Partly Sunny

Partly
Sunny

High: 60 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 51 °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: 25 °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: 20 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 39 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 30 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around 41. South wind 9 to 11 mph.
  • Saturday Partly sunny, with a high near 60. South wind 10 to 14 mph.
  • Saturday Night Mostly cloudy, with a low around 51. South wind around 10 mph.
  • Sunday A 20 percent chance of rain. Mostly cloudy, with a high near 64. South wind 7 to 13 mph becoming northwest in the afternoon.
  • Sunday Night A chance of rain before 2am, then a chance of freezing rain. Mostly cloudy, with a low around 25. North wind 11 to 14 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 20.
  • Tuesday Mostly sunny, with a high near 39.
  • Tuesday Night Mostly cloudy, with a low around 30.
  • Wednesday Mostly sunny, with a high near 47.
  • Wednesday Night A slight chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
  • Thursday A 30 percent chance of rain. Mostly cloudy, with a high near 48.
  • Thursday Night A chance of rain and snow. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
  • Friday A 20 percent chance of rain. Mostly cloudy, with a high near 48.