Sphinx, MT Weather Forecast
Local 7-day forecast
Slight Chance Snow Showers then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sphinx, MT in one place.
A slight chance of snow showers before 8am. Mostly sunny. High near 44, with temperatures falling to around 39 in the afternoon. South southwest wind 8 to 13 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Sphinx, 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 6:57 AM MST.
The active forecast window currently covers Nov 10 to Nov 15, 2026 for Sphinx, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 10 to Nov 15, 2026
- Latest sync
- Nov 9, 2026 6:57 AM MST
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Sphinx
Thursday looks like the warmest upcoming period in Sphinx at 53 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Friday Night at about 10 to 17 mph S.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 9, 2026 6:57 AM MST
- Coverage
- 6 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
Partly cloudy, with a low around 29. South southwest wind 7 to 10 mph.
Mostly sunny. High near 48, with temperatures falling to around 42 in the afternoon. South southwest wind around 8 mph.
Partly cloudy, with a low around 31. South wind 6 to 9 mph.
Mostly sunny. High near 53, with temperatures falling to around 45 in the afternoon. South wind around 7 mph.
Partly cloudy, with a low around 33. South wind 7 to 12 mph.
Mostly sunny. High near 49, with temperatures falling to around 41 in the afternoon. South wind 9 to 13 mph.
Partly cloudy, with a low around 34. South wind 10 to 17 mph.
Mostly sunny. High near 45, with temperatures falling to around 39 in the afternoon. South wind 9 to 13 mph.
Partly cloudy. Low around 34, with temperatures rising to around 36 overnight. South wind 9 to 13 mph.
A chance of rain and snow showers after 11am. Mostly sunny. High near 45, with temperatures falling to around 41 in the afternoon. South wind 9 to 13 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Nov 10
|
Slight Chance Snow Showers then Mostly Sunny
|
44°F |
8 to 13 mph
SSW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
29°F |
7 to 10 mph
SSW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
48°F |
8 mph
SSW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
31°F |
6 to 9 mph
S
|
|
Thursday
Nov 12
|
Mostly Sunny
|
53°F |
7 mph
S
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
33°F |
7 to 12 mph
S
|
|
Friday
Nov 13
|
Mostly Sunny
|
49°F |
9 to 13 mph
S
|
|
Friday Night
Nov 13
|
Partly Cloudy
|
34°F |
10 to 17 mph
S
|
|
Saturday
Nov 14
|
Mostly Sunny
|
45°F |
9 to 13 mph
S
|
|
Saturday Night
Nov 14
|
Partly Cloudy
|
34°F |
9 to 13 mph
S
|
|
Sunday
Nov 15
|
Chance Rain And Snow Showers
|
45°F |
9 to 13 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sphinx.