Castner Falls, MT Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Castner Falls, MT in one place.
Mostly sunny. High near 54, with temperatures falling to around 51 in the afternoon. South southwest wind 15 to 35 mph, with gusts as high as 49 mph.
Local Weather Overview
This forecast page for Castner Falls, 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 4:42 PM MST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Castner Falls, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:42 PM MST
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Castner Falls
Saturday looks like the warmest upcoming period in Castner Falls at 62 degrees F.
Sunday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Friday at about 15 to 35 mph SSW.
The forecast from Nov 6 through Nov 11 stays mostly dry.
Forecast Details
- Last updated
- Nov 5, 2026 4:42 PM MST
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KTFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 44. South southwest wind 21 to 28 mph, with gusts as high as 39 mph.
Mostly sunny, with a high near 62. South southwest wind 8 to 22 mph, with gusts as high as 31 mph.
Partly cloudy, with a low around 42. South southwest wind 8 to 18 mph, with gusts as high as 25 mph.
Mostly sunny, with a high near 61. Southwest wind 17 to 29 mph, with gusts as high as 40 mph.
Partly cloudy, with a low around 37. Southwest wind 7 to 17 mph, with gusts as high as 31 mph.
Partly sunny, with a high near 55.
Mostly cloudy, with a low around 39.
Mostly sunny, with a high near 60.
Partly cloudy, with a low around 42.
Mostly sunny, with a high near 62.
Partly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Mostly Sunny
|
54°F |
15 to 35 mph
SSW
|
|
Friday Night
Nov 6
|
Mostly Cloudy
|
44°F |
21 to 28 mph
SSW
|
|
Saturday
Nov 7
|
Mostly Sunny
|
62°F |
8 to 22 mph
SSW
|
|
Saturday Night
Nov 7
|
Partly Cloudy
|
42°F |
8 to 18 mph
SSW
|
|
Sunday
Nov 8
|
Mostly Sunny
|
61°F |
17 to 29 mph
SW
|
|
Sunday Night
Nov 8
|
Partly Cloudy
|
37°F |
7 to 17 mph
SW
|
|
Monday
Nov 9
|
Partly Sunny
|
55°F |
2 to 7 mph
SSW
|
|
Monday Night
Nov 9
|
Mostly Cloudy
|
39°F |
2 to 13 mph
SSW
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
60°F |
12 to 22 mph
SW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
42°F |
12 to 20 mph
SSW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
62°F |
10 to 17 mph
SSW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
43°F |
10 to 16 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Castner Falls.