Decker, MT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Decker, MT in one place.
Sunny. High near 58, with temperatures falling to around 51 in the afternoon. South wind around 3 mph.
Local Weather Overview
This forecast page for Decker, MT 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 4:44 PM MST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Decker, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:44 PM MST
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Decker
Sunday looks like the warmest upcoming period in Decker at 70 degrees F.
Friday Night is the coolest period ahead with temperatures near 27 degrees F.
The strongest winds are forecast for Friday Night at about 5 mph SSW.
The forecast from Nov 6 through Nov 11 stays mostly dry.
Forecast Details
- Last updated
- Nov 5, 2026 4:44 PM MST
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- BYZ
- Radar station
- KBLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear. Low around 27, with temperatures rising to around 29 overnight. South southwest wind around 5 mph.
Sunny. High near 64, with temperatures falling to around 56 in the afternoon. Southwest wind 1 to 5 mph.
Mostly clear, with a low around 30. South wind around 2 mph.
Mostly sunny. High near 70, with temperatures falling to around 55 in the afternoon. North wind around 3 mph.
Partly cloudy, with a low around 32. North northwest wind around 1 mph.
Mostly sunny. High near 57, with temperatures falling to around 51 in the afternoon. East northeast wind 0 to 5 mph.
Mostly cloudy. Low around 30, with temperatures rising to around 32 overnight. East southeast wind around 2 mph.
Mostly sunny. High near 64, with temperatures falling to around 55 in the afternoon. South wind 0 to 3 mph.
Mostly clear. Low around 32, with temperatures rising to around 34 overnight. South southwest wind around 1 mph.
Sunny. High near 65, with temperatures falling to around 55 in the afternoon. East southeast wind around 2 mph.
Mostly clear, with a low around 32. South wind around 1 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Sunny
|
58°F |
3 mph
S
|
|
Friday Night
Nov 6
|
Mostly Clear
|
27°F |
5 mph
SSW
|
|
Saturday
Nov 7
|
Sunny
|
64°F |
1 to 5 mph
SW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
30°F |
2 mph
S
|
|
Sunday
Nov 8
|
Mostly Sunny
|
70°F |
3 mph
N
|
|
Sunday Night
Nov 8
|
Partly Cloudy
|
32°F |
1 mph
NNW
|
|
Monday
Nov 9
|
Mostly Sunny
|
57°F |
0 to 5 mph
ENE
|
|
Monday Night
Nov 9
|
Mostly Cloudy
|
30°F |
2 mph
ESE
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
64°F |
0 to 3 mph
S
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
32°F |
1 mph
SSW
|
|
Veterans Day
Nov 11
|
Sunny
|
65°F |
2 mph
ESE
|
|
Wednesday Night
Nov 11
|
Mostly Clear
|
32°F |
1 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Decker.