I-270 MO weather conditions near Saint Louis, Missouri
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7 day weather forecast
Current condition: Mostly Cloudy 75°F 2025-07-25T05:51:00-05:00 Today 2025-07-25, Mostly Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 94. Heat index values as high as 106. South wind 3 to 6 mph.
Tonight 2025-07-25, Slight Chance T-storms then Partly Cloudy. A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 77. South wind 3 to 6 mph.
Saturday 2025-07-26, Slight Chance Showers then Chance T-storms. A slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 110. South wind 3 to 7 mph. Chance of precipitation is 30%.
Saturday Night 2025-07-26, Slight Chance T-storms. A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. South wind 3 to 6 mph.
Sunday 2025-07-27, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Southwest wind 3 to 6 mph.
Sunday Night 2025-07-27, Mostly Clear. Mostly clear, with a low around 79.
Monday 2025-07-28, Hot. Sunny and hot, with a high near 99.- Monday Night 2025-07-28, Mostly Clear. Mostly clear, with a low around 80.
- Tuesday 2025-07-29, Hot. Sunny and hot, with a high near 99.
- Tuesday Night 2025-07-29, Mostly Clear. Mostly clear, with a low around 78.
Wednesday 2025-07-30, Chance T-storms. A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Wednesday Night 2025-07-30, Chance Showers. A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Thursday 2025-07-31, Chance Showers. A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.