I-70 weather conditions near Saint Peters, Missouri
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 72°F 2025-10-17T21:54:00-05:00 
Tonight 2025-10-17, Mostly Clear. Mostly clear, with a low around 63. Light south wind increasing to 5 to 9 mph after midnight.
Saturday 2025-10-18, Heavy Rain. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 75. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Saturday Night 2025-10-18, Heavy Rain and Breezy. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 50. Breezy, with a northwest wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Sunday 2025-10-19, Becoming Sunny. Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Northwest wind 15 to 18 mph, with gusts as high as 32 mph.
Sunday Night 2025-10-19, Clear. Clear, with a low around 45. West wind 5 to 7 mph becoming light and variable.
Monday 2025-10-20, Sunny. Sunny, with a high near 74.- Monday Night 2025-10-20, Mostly Clear. Mostly clear, with a low around 49.
Tuesday 2025-10-21, Sunny. Sunny, with a high near 63.- Tuesday Night 2025-10-21, Mostly Clear. Mostly clear, with a low around 40.
- Wednesday 2025-10-22, Sunny. Sunny, with a high near 66.
Wednesday Night 2025-10-22, Partly Cloudy then Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 47.
Thursday 2025-10-23, Chance Showers. A 30 percent chance of showers. Mostly sunny, with a high near 70.
Thursday Night 2025-10-23, Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 45.
Friday 2025-10-24, Mostly Sunny. Mostly sunny, with a high near 67.