I-55 weather conditions near Saint Louis, Missouri
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Partly Cloudy 87°F 2025-07-17T11:53:00-05:00
This Afternoon 2025-07-17, T-storms Likely. Scattered showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly cloudy, with a high near 87. Northwest wind 3 to 5 mph. Chance of precipitation is 60%.
Tonight 2025-07-17, Scattered T-storms and Patchy Fog. Scattered showers and thunderstorms. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 50%.
Friday 2025-07-18, Scattered Showers and Patchy Fog then Scattered T-storms. Scattered showers and thunderstorms. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 88. Heat index values as high as 100. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 50%.
Friday Night 2025-07-18, Scattered T-storms. Scattered showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 75. South wind 3 to 5 mph. Chance of precipitation is 40%.
Saturday 2025-07-19, Chance Showers then Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. South wind 3 to 6 mph.
Saturday Night 2025-07-19, Slight Chance T-storms. A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
Sunday 2025-07-20, Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Sunday Night 2025-07-20, Chance T-storms. A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 76.
Monday 2025-07-21, Slight Chance Showers then Slight Chance T-storms. A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
Monday Night 2025-07-21, Mostly Clear. Mostly clear, with a low around 78.
Tuesday 2025-07-22, Hot. Sunny and hot, with a high near 98.
Tuesday Night 2025-07-22, Mostly Clear. Mostly clear, with a low around 78.
Wednesday 2025-07-23, Hot. Sunny and hot, with a high near 99.