Custer, MT Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Custer, MT in one place.
Mostly cloudy. Low around 37, with temperatures rising to around 40 overnight. South wind around 3 mph.
Local Weather Overview
This forecast page for Custer, 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 9, 2026 6:42 AM MST.
The active forecast window currently covers Nov 9 to Nov 15, 2026 for Custer, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 9 to Nov 15, 2026
- Latest sync
- Nov 9, 2026 6:42 AM MST
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Custer
Thursday looks like the warmest upcoming period in Custer at 65 degrees F.
Overnight is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 20 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 9, 2026 6:42 AM 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 sunny. High near 59, with temperatures falling to around 53 in the afternoon. Southeast wind around 5 mph.
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 38. Northwest wind 3 to 8 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 11am. Partly sunny. High near 62, with temperatures falling to around 56 in the afternoon. West wind 6 to 20 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 37. West wind 2 to 6 mph.
Sunny. High near 63, with temperatures falling to around 57 in the afternoon. West southwest wind 2 to 9 mph.
Partly cloudy, with a low around 39. West southwest wind around 5 mph.
Mostly sunny. High near 65, with temperatures falling to around 57 in the afternoon. Southwest wind 2 to 6 mph.
Partly cloudy, with a low around 37. South southwest wind around 2 mph.
Mostly sunny. High near 64, with temperatures falling to around 55 in the afternoon. Southwest wind 1 to 6 mph.
Partly cloudy, with a low around 39. Southwest wind around 3 mph.
Mostly sunny. High near 64, with temperatures falling to around 54 in the afternoon. Southwest wind 1 to 6 mph.
Partly cloudy, with a low around 37. West southwest wind around 1 mph.
Mostly sunny. High near 63, with temperatures falling to around 56 in the afternoon. Southwest wind around 3 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 9
|
Mostly Cloudy
|
37°F |
3 mph
S
|
|
Monday
Nov 9
|
Mostly Sunny
|
59°F |
5 mph
SE
|
|
Monday Night
Nov 9
|
Mostly Cloudy then Slight Chance Rain Showers
|
38°F |
3 to 8 mph
NW
|
|
Tuesday
Nov 10
|
Slight Chance Rain Showers then Partly Sunny
|
62°F |
6 to 20 mph
W
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
37°F |
2 to 6 mph
W
|
|
Veterans Day
Nov 11
|
Sunny
|
63°F |
2 to 9 mph
WSW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
39°F |
5 mph
WSW
|
|
Thursday
Nov 12
|
Mostly Sunny
|
65°F |
2 to 6 mph
SW
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
37°F |
2 mph
SSW
|
|
Friday
Nov 13
|
Mostly Sunny
|
64°F |
1 to 6 mph
SW
|
|
Friday Night
Nov 13
|
Partly Cloudy
|
39°F |
3 mph
SW
|
|
Saturday
Nov 14
|
Mostly Sunny
|
64°F |
1 to 6 mph
SW
|
|
Saturday Night
Nov 14
|
Partly Cloudy
|
37°F |
1 mph
WSW
|
|
Sunday
Nov 15
|
Mostly Sunny
|
63°F |
3 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Custer.