Big Sandy, MT Weather Forecast
Local 7-day forecast
Patchy Fog then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Big Sandy, MT in one place.
Patchy fog before noon. Sunny. High near 50, with temperatures falling to around 46 in the afternoon. West wind around 5 mph.
Local Weather Overview
This forecast page for Big Sandy, 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: Oct 13, 2026 12:33 PM MDT.
The active forecast window currently covers Oct 13 to Oct 19, 2026 for Big Sandy, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 12:33 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Big Sandy
Saturday looks like the warmest upcoming period in Big Sandy at 74 degrees F.
Tonight is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Saturday at about 6 to 17 mph SSW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Oct 13, 2026 12:33 PM MDT
- Coverage
- 8 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
Patchy fog after 9pm. Partly cloudy, with a low around 26. South southwest wind 1 to 5 mph.
Mostly sunny, with a high near 57. South southwest wind around 7 mph.
Mostly cloudy, with a low around 31. West wind around 3 mph.
Mostly sunny, with a high near 55. West northwest wind around 3 mph.
Mostly clear, with a low around 35. Southeast wind 2 to 13 mph, with gusts as high as 22 mph.
Sunny, with a high near 69. South wind around 9 mph.
Mostly clear, with a low around 40. South southwest wind around 7 mph.
Mostly sunny, with a high near 74.
Partly cloudy, with a low around 40.
Sunny, with a high near 62.
Partly cloudy, with a low around 39.
Mostly sunny, with a high near 65.
A slight chance of rain. Mostly cloudy, with a low around 40.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 13
|
Patchy Fog then Sunny
|
50°F |
5 mph
W
|
|
Tonight
Oct 13
|
Patchy Fog
|
26°F |
1 to 5 mph
SSW
|
|
Wednesday
Oct 14
|
Mostly Sunny
|
57°F |
7 mph
SSW
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy
|
31°F |
3 mph
W
|
|
Thursday
Oct 15
|
Mostly Sunny
|
55°F |
3 mph
WNW
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
35°F |
2 to 13 mph
SE
|
|
Friday
Oct 16
|
Sunny
|
69°F |
9 mph
S
|
|
Friday Night
Oct 16
|
Mostly Clear
|
40°F |
7 mph
SSW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
74°F |
6 to 17 mph
SSW
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
40°F |
3 to 10 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
5 mph
SW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
39°F |
5 mph
SE
|
|
Monday
Oct 19
|
Mostly Sunny
|
65°F |
3 mph
S
|
|
Monday Night
Oct 19
|
Slight Chance Light Rain
|
40°F |
3 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Big Sandy.