National Weather Service United States Department of Commerce

Much needed precipitation continues across the Southwest; central and eastern U.S. prepare for more winter weather

Widespread and much-needed precipitation across the Southwest will begin to spread into the Plains through Saturday. As the moisture encounters an Arctic airmass dropping down through the north-central U.S., moderate to heavy snow is expected to develop across the Midwest Saturday and then move into portions of the Mid-Atlantic and Northeast on Sunday.
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Hazardous Weather Conditions

Current Conditions

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Collinsville IL

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

Late
Afternoon

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 39 °F

Tonight

Rain Chance for Measurable Precipitation 100%

Rain

Low: 35 °F

Sunday

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

High: 42 °F

Sunday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 16 °F

Monday

Partly Sunny

Partly
Sunny

High: 26 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 21 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 45 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 30 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 35 °F

Detailed Forecast

  • Late Afternoon A 50 percent chance of rain. Cloudy, with a steady temperature around 39. Light southeast wind.
  • Tonight Rain, mainly after midnight. Low around 35. Southeast wind 5 to 8 mph. Chance of precipitation is 100%.
  • Sunday Rain before 4pm, then rain and snow. High near 42. Southeast wind 6 to 13 mph becoming northwest in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
  • Sunday Night A 40 percent chance of snow, mainly before midnight. Cloudy, with a low around 16. Blustery, with a northwest wind 14 to 20 mph, with gusts as high as 33 mph.
  • Monday Partly sunny, with a high near 26. Northwest wind 6 to 16 mph becoming northeast in the afternoon. Winds could gust as high as 24 mph.
  • Monday Night Mostly cloudy, with a low around 21.
  • Tuesday Mostly sunny, with a high near 45.
  • Tuesday Night Partly cloudy, with a low around 30.
  • Wednesday A 20 percent chance of snow. Partly sunny, with a high near 35.
  • Wednesday Night A 30 percent chance of snow. Mostly cloudy, with a low around 15.
  • Thursday Partly sunny, with a high near 27.
  • Thursday Night Partly cloudy, with a low around 14.
  • Friday Mostly sunny, with a high near 36.
  • Friday Night Partly cloudy, with a low around 26.
  • Saturday Mostly sunny, with a high near 43.