| NWS Forecast for: Collinsville IL Issued by: National Weather Service Saint Louis, MO Last Update: 8:37 am CDT Jul 13, 2025 | |
Today: Showers and thunderstorms likely, mainly after 2pm. Cloudy, with a high near 85. Southeast wind 3 to 5 mph. Chance of precipitation is 60%. Tonight: A 40 percent chance of showers and thunderstorms before 10pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 71. East wind around 5 mph becoming calm in the evening. Monday: A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the afternoon. Monday Night: Partly cloudy, with a low around 72. Light east wind. Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the morning. Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 74. Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Friday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Saturday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. | |
| Collinsville IL 38.68°N 90°W (Elev. 499 ft) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |