Saint Clair, MO Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Clair, MO in one place.
A slight chance of rain showers before 4am, then patchy fog. Mostly cloudy, with a low around 65. Wind around 0 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Saint Clair, 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: May 30, 2026 3:32 AM CDT.
The active forecast window currently covers May 30 to Jun 5, 2026 for Saint Clair, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 3:32 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Clair
Friday looks like the warmest upcoming period in Saint Clair at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Tuesday at about 1 to 6 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 3:32 AM CDT
- Coverage
- 7 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
Patchy fog before 8am, then a slight chance of rain showers between 8am and 10am, then a slight chance of showers and thunderstorms between 10am and noon, then a chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. East wind 0 to 3 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southeast wind around 3 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 11am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Southeast wind around 3 mph. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 62. Southeast wind around 2 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 70%.
Mostly clear, with a low around 61.
Sunny, with a high near 82.
Mostly clear, with a low around 56.
Sunny, with a high near 82.
Mostly clear, with a low around 57.
Sunny, with a high near 84.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 30
|
Slight Chance Rain Showers
|
65°F |
0 mph
|
|
Saturday
May 30
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
83°F |
0 to 3 mph
E
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms
|
62°F |
3 mph
SE
|
|
Sunday
May 31
|
Chance Showers And Thunderstorms
|
82°F |
3 mph
SE
|
|
Sunday Night
May 31
|
Slight Chance Showers And Thunderstorms
|
62°F |
2 mph
SE
|
|
Monday
Jun 1
|
Showers And Thunderstorms Likely
|
86°F |
3 mph
E
|
|
Monday Night
Jun 1
|
Mostly Clear
|
61°F |
2 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
1 to 6 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
56°F |
0 to 5 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
82°F |
0 to 3 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
3 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
84°F |
2 mph
S
|
|
Thursday Night
Jun 4
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
63°F |
2 mph
S
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
87°F |
2 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Clair.
