I-55 weather conditions near Arnold, Missouri
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 68°F 2025-09-24T01:53:00-05:00 
Overnight 2025-09-24, Chance Showers and Patchy Fog. A chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a low around 65. Northeast wind around 5 mph. Chance of precipitation is 30%.Wednesday 2025-09-24, Chance Showers and Patchy Fog then Chance T-storms. A chance of showers, with thunderstorms also possible after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 73. North wind 5 to 7 mph. Chance of precipitation is 40%.
Wednesday Night 2025-09-24, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 60. North wind around 6 mph. Chance of precipitation is 50%.
Thursday 2025-09-25, Slight Chance Showers then Mostly Sunny. A 20 percent chance of showers before 10am. Mostly sunny, with a high near 77. North wind 5 to 8 mph.
Thursday Night 2025-09-25, Mostly Clear. Mostly clear, with a low around 54. Light west wind.
Friday 2025-09-26, Sunny. Sunny, with a high near 81.
Friday Night 2025-09-26, Clear. Clear, with a low around 54.
Saturday 2025-09-27, Sunny. Sunny, with a high near 84.- Saturday Night 2025-09-27, Clear. Clear, with a low around 56.
- Sunday 2025-09-28, Sunny. Sunny, with a high near 85.
- Sunday Night 2025-09-28, Mostly Clear. Mostly clear, with a low around 57.
- Monday 2025-09-29, Sunny. Sunny, with a high near 85.
Monday Night 2025-09-29, Partly Cloudy. Partly cloudy, with a low around 58.
Tuesday 2025-09-30, Mostly Sunny. Mostly sunny, with a high near 84.