Saint Marys, CO Weather Forecast
Local 7-day forecast
Chance Snow Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Marys, CO in one place.
A chance of snow showers between 11am and 5pm. Mostly cloudy. High near 35, with temperatures falling to around 26 in the afternoon. West northwest wind 3 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Local Weather Overview
This forecast page for Saint Marys, CO 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: Nov 5, 2026 2:56 PM MST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Saint Marys, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 2:56 PM MST
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Marys
Monday looks like the warmest upcoming period in Saint Marys at 46 degrees F.
Friday Night is the coolest period ahead with temperatures near 22 degrees F.
The strongest winds are forecast for Sunday Night at about 15 to 20 mph W.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 5, 2026 2:56 PM MST
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 22. West northwest wind 3 to 14 mph, with gusts as high as 24 mph.
Sunny, with a high near 38. West northwest wind 1 to 15 mph, with gusts as high as 24 mph.
Mostly clear, with a low around 26.
Sunny, with a high near 45.
Clear, with a low around 30.
Sunny, with a high near 46.
Mostly clear, with a low around 30.
Mostly sunny, with a high near 43.
Mostly clear, with a low around 29.
Sunny, with a high near 39.
Mostly clear, with a low around 29.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Chance Snow Showers
|
35°F |
3 to 13 mph
WNW
|
|
Friday Night
Nov 6
|
Partly Cloudy
|
22°F |
3 to 14 mph
WNW
|
|
Saturday
Nov 7
|
Sunny
|
38°F |
1 to 15 mph
WNW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
26°F |
2 to 16 mph
W
|
|
Sunday
Nov 8
|
Sunny
|
45°F |
9 to 17 mph
W
|
|
Sunday Night
Nov 8
|
Clear
|
30°F |
15 to 20 mph
W
|
|
Monday
Nov 9
|
Sunny
|
46°F |
1 to 16 mph
NW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
30°F |
3 to 17 mph
W
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
43°F |
8 to 18 mph
W
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
29°F |
9 to 17 mph
W
|
|
Veterans Day
Nov 11
|
Sunny
|
39°F |
7 to 18 mph
WNW
|
|
Wednesday Night
Nov 11
|
Mostly Clear
|
29°F |
8 to 16 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Marys.