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St. Thomas Weather Forecast
St. Thomas, MO Weather Forecast Date: 1028 PM CDT Sun Sep 06 2026
Weather forecast for St. Thomas, MO
Tonight Lo: 69°F Lo: 21°C |
Tonight... Mostly cloudy late this evening, then becoming partly cloudy. Lows in the upper 60s. East winds 5 to 10 mph. |
Labor Day Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Labor Day... Sunny. Highs in the lower 90s. East winds 5 to 10 mph. |
| Tue Hi: 99°FHi: 37°C Lo: 75°F Lo: 24°C |
Tuesday... Mostly sunny. Hot with highs in the upper 90s. South winds 5 to 10 mph. |
Wed Hi: 99°FHi: 37°C Lo: 69°F Lo: 21°C |
Wednesday... Mostly sunny. A slight chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Hot with highs in the upper 90s. Chance of rain 60%. Heat index values up to 105 in the afternoon. |
| Thu Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Thursday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Cooler with highs in the mid 80s. Chance of rain 40%. |
Fri Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Friday... Mostly clear. A 20% chance of showers. Lows in the lower 60s. Highs in the upper 80s. |
| Sat Hi: 90°FHi: 32°C Lo: 69°F Lo: 21°C |
Saturday... Mostly clear. A chance of showers and thunderstorms. Lows in the mid 60s. Highs around 90. Chance of rain 40%. |
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