I-64 weather conditions near Saint Louis, Missouri
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7 day weather forecast
Current condition: Mostly Cloudy 80°F 2025-08-17T06:51:00-05:00 Today 2025-08-17, Sunny then Chance T-storms. A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming east around 5 mph in the afternoon.
Tonight 2025-08-17, Chance T-storms then Mostly Clear. A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 77. Light and variable wind.
Monday 2025-08-18, Sunny then Slight Chance T-storms. A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 98. Heat index values as high as 109. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Monday Night 2025-08-18, Partly Cloudy. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Tuesday 2025-08-19, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 95. Calm wind becoming west around 6 mph in the afternoon.Tuesday Night 2025-08-19, Chance T-storms then Chance Showers. A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 73.
Wednesday 2025-08-20, Slight Chance Showers then Slight Chance T-storms. A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 20%.
- Wednesday Night 2025-08-20, Partly Cloudy. Partly cloudy, with a low around 69.
Thursday 2025-08-21, Mostly Sunny. Mostly sunny, with a high near 86.
Thursday Night 2025-08-21, Mostly Clear. Mostly clear, with a low around 68.
Friday 2025-08-22, Sunny. Sunny, with a high near 89.- Friday Night 2025-08-22, Mostly Clear. Mostly clear, with a low around 69.
- Saturday 2025-08-23, Sunny. Sunny, with a high near 90.