| NWS Forecast for: O'Fallon IL Issued by: National Weather Service Saint Louis, MO Last Update: 5:22 am CDT May 31, 2024 |  |
Today: Mostly cloudy, with a high near 80. Light east wind becoming southeast 9 to 14 mph in the morning. Winds could gust as high as 21 mph. Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 64. Southeast wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Saturday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 74. Southeast wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Saturday Night: A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 62. Northwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 20%. Sunday: Mostly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon. Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 70%. Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Wednesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Thursday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 83. | |
| O'Fallon IL 38.59°N 89.92°W (Elev. 551 ft) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |
