7-Day Forecast 38.68°N 90°W (Text-Only)
NWS Forecast for: Collinsville IL
Issued by: National Weather Service Saint Louis, MO
Last Update: 9:37 pm CDT May 23, 2024




Tonight: Partly cloudy, with a low around 66. Southeast wind around 7 mph.

Friday: Showers and thunderstorms likely, mainly between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 84. South wind 8 to 14 mph. Chance of precipitation is 70%.

Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 63. South wind 6 to 11 mph becoming northwest after midnight.

Saturday: Sunny, with a high near 82. North wind around 6 mph becoming light and variable in the afternoon.

Saturday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 67. East wind 5 to 8 mph. Chance of precipitation is 60%.

Sunday: Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 90%.

Sunday Night: Showers and thunderstorms likely, mainly before 7pm. Partly cloudy, with a low around 65. Chance of precipitation is 60%.

Memorial Day: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78.

Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 59.

Tuesday: Sunny, with a high near 79.

Tuesday Night: Mostly clear, with a low around 58.

Wednesday: Sunny, with a high near 78.

Wednesday Night: Mostly clear, with a low around 57.

Thursday: Sunny, with a high near 81.



Collinsville IL
 38.68°N 90°W (Elev. 499 ft)

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