National Weather Service United States Department of Commerce

Unsettled weather forecast across eastern U.S.

A storm system moving across the Great Lakes will bring unsettled weather to parts of the eastern U.S. on Monday, with widespread rain is expected across much of the Northeast. Snow is likely across Wisconsin and the western Great Lakes. Snow is also expected across the central and northern Rockies Monday into Tuesday.
Read More...

Current Conditions

En Español

Share |

Collinsville IL

7 Day Forecast

For More Weather Information:

Saint Louis, MO Local Forecast Office

This
Afternoon

Breezy

Breezy

High: 41 °F

Tonight

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Tuesday

Sunny

Sunny

High: 37 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Wednesday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 41 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 28 °F

Thanksgiving
Day

Mostly Sunny

Mostly
Sunny

High: 36 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 23 °F

Friday

Mostly Sunny

Mostly
Sunny

High: 43 °F

Detailed Forecast

  • This Afternoon Mostly cloudy, with a high near 41. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph.
  • Tonight Partly cloudy, with a low around 25. West wind 8 to 13 mph.
  • Tuesday Sunny, with a high near 37. West wind 5 to 9 mph becoming light southwest in the afternoon.
  • Tuesday Night Partly cloudy, with a low around 26. Calm wind becoming southeast around 6 mph after midnight.
  • Wednesday A chance of rain and snow before 2pm, then a chance of rain between 2pm and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 41. Southeast wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 30%.
  • Wednesday Night Mostly cloudy, with a low around 28.
  • Thanksgiving Day Mostly sunny, with a high near 36.
  • Thursday Night Partly cloudy, with a low around 23.
  • Friday Mostly sunny, with a high near 43.
  • Friday Night Partly cloudy, with a low around 35.
  • Saturday Partly sunny, with a high near 53.
  • Saturday Night Mostly cloudy, with a low around 32.
  • Sunday Partly sunny, with a high near 47.