Saint Mary, MO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Mary, MO in one place.
Sunny, with a high near 60. North wind 3 to 9 mph.
Local Weather Overview
This forecast page for Saint Mary, 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: Oct 16, 2026 8:56 AM CDT.
The active forecast window currently covers Oct 17 to Oct 22, 2026 for Saint Mary, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 17 to Oct 22, 2026
- Latest sync
- Oct 16, 2026 8:56 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Mary
Thursday looks like the warmest upcoming period in Saint Mary at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Saturday at about 3 to 9 mph N.
The forecast from Oct 17 through Oct 22 stays mostly dry.
Forecast Details
- Last updated
- Oct 16, 2026 8:56 AM 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
Clear, with a low around 32. Northeast wind around 2 mph.
Sunny, with a high near 66. Southeast wind 0 to 5 mph.
Mostly clear, with a low around 37. South southeast wind 0 to 3 mph.
Sunny, with a high near 72. South southeast wind 0 to 3 mph.
Mostly clear, with a low around 40. Southeast wind around 2 mph.
Sunny, with a high near 75. East wind 0 to 3 mph.
Mostly clear, with a low around 42. Northeast wind around 2 mph.
Sunny, with a high near 78. East northeast wind around 2 mph.
Mostly clear, with a low around 45. Northeast wind around 1 mph.
Sunny, with a high near 80. South southeast wind 0 to 3 mph.
Mostly clear, with a low around 48. South southeast wind around 2 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 17
|
Sunny
|
60°F |
3 to 9 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
32°F |
2 mph
NE
|
|
Sunday
Oct 18
|
Sunny
|
66°F |
0 to 5 mph
SE
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
0 to 3 mph
SSE
|
|
Monday
Oct 19
|
Sunny
|
72°F |
0 to 3 mph
SSE
|
|
Monday Night
Oct 19
|
Mostly Clear
|
40°F |
2 mph
SE
|
|
Tuesday
Oct 20
|
Sunny
|
75°F |
0 to 3 mph
E
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
42°F |
2 mph
NE
|
|
Wednesday
Oct 21
|
Sunny
|
78°F |
2 mph
ENE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
45°F |
1 mph
NE
|
|
Thursday
Oct 22
|
Sunny
|
80°F |
0 to 3 mph
SSE
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
48°F |
2 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Mary.