Saint Thomas, MO Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Thomas, MO in one place.
Patchy fog before 7am, then showers and thunderstorms likely. Mostly sunny. High near 91, with temperatures falling to around 86 in the afternoon. West wind 0 to 3 mph. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Saint Thomas, MO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 15, 2026 1:14 PM CDT.
The active forecast window currently covers Jul 16 to Jul 21, 2026 for Saint Thomas, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 1:14 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Thomas
Monday looks like the warmest upcoming period in Saint Thomas at 97 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Saturday at about 7 mph W.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 1:14 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Southwest wind around 2 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms between 7am and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 2 to 6 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Chance of precipitation is 40%.
Sunny, with a high near 95.
Mostly clear, with a low around 77.
Sunny, with a high near 96.
Mostly clear, with a low around 77.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 76. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 94. Chance of precipitation is 20%.
Mostly clear, with a low around 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Showers And Thunderstorms Likely
|
91°F |
0 to 3 mph
W
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
2 mph
SW
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
92°F |
2 to 6 mph
SW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Mostly Clear
|
75°F |
5 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
95°F |
7 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
77°F |
6 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
96°F |
6 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
77°F |
5 mph
SW
|
|
Monday
Jul 20
|
Sunny then Slight Chance Showers And Thunderstorms
|
97°F |
7 mph
SW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
76°F |
2 to 6 mph
W
|
|
Tuesday
Jul 21
|
Slight Chance Rain Showers then Mostly Sunny
|
94°F |
2 to 6 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
68°F |
1 to 5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Thomas.