Big Sky, MT Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Big Sky, MT in one place.
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 64. South wind around 9 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Big Sky, 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: May 24, 2026 11:14 AM MDT.
The active forecast window currently covers May 26 to May 30, 2026 for Big Sky, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to May 30, 2026
- Latest sync
- May 24, 2026 11:14 AM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Big Sky
Tuesday looks like the warmest upcoming period in Big Sky at 64 degrees F.
Friday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Tuesday at about 9 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 11:14 AM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KBLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 9pm, then rain likely. Mostly cloudy, with a low around 42. South southeast wind 1 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
A chance of rain before noon, then showers and thunderstorms. Mostly cloudy, with a high near 56. North northeast wind 1 to 5 mph.
Showers and thunderstorms likely before midnight, then a slight chance of rain. Mostly cloudy, with a low around 40. Northeast wind 1 to 5 mph.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 60.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 57.
A chance of showers and thunderstorms before midnight, then a slight chance of rain. Mostly cloudy, with a low around 39.
A chance of rain before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 53.
A chance of showers and thunderstorms before midnight, then a slight chance of rain. Partly cloudy, with a low around 39.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Mostly Sunny then Chance Showers And Thunderstorms
|
64°F |
9 mph
S
|
|
Tuesday Night
May 26
|
Showers And Thunderstorms Likely then Light Rain Likely
|
42°F |
1 to 7 mph
SSE
|
|
Wednesday
May 27
|
Chance Light Rain then Showers And Thunderstorms
|
56°F |
1 to 5 mph
NNE
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms Likely then Slight Chance Light Rain
|
40°F |
1 to 5 mph
NE
|
|
Thursday
May 28
|
Partly Sunny then Showers And Thunderstorms Likely
|
60°F |
2 to 6 mph
ESE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms then Partly Cloudy
|
41°F |
2 to 6 mph
SE
|
|
Friday
May 29
|
Partly Sunny then Chance Showers And Thunderstorms
|
57°F |
2 to 8 mph
S
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms then Slight Chance Light Rain
|
39°F |
3 to 8 mph
SSW
|
|
Saturday
May 30
|
Chance Light Rain then Chance Showers And Thunderstorms
|
53°F |
2 to 8 mph
SSW
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms then Slight Chance Light Rain
|
39°F |
2 to 7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Big Sky.