Chinook, MT Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Chinook, MT in one place.
Mostly cloudy, with a high near 83. West wind 3 to 8 mph.
Local Weather Overview
This forecast page for Chinook, 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: Aug 27, 2026 9:25 PM MDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Chinook, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 9:25 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Chinook
Tuesday looks like the warmest upcoming period in Chinook at 85 degrees F.
Sunday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Sunday Night at about 14 to 21 mph W.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 9:25 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KGGW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain showers likely before 3am, then showers and thunderstorms likely. Mostly cloudy, with a low around 53. South wind around 8 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 72. West wind 8 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
A chance of rain showers. Partly cloudy, with a low around 48. West wind 14 to 21 mph, with gusts as high as 33 mph.
Sunny, with a high near 77. West wind 14 to 20 mph, with gusts as high as 28 mph.
Mostly clear, with a low around 50.
Sunny, with a high near 85.
A slight chance of rain showers after midnight. Partly cloudy, with a low around 53.
Mostly sunny, with a high near 82.
A slight chance of rain showers. Partly cloudy, with a low around 52.
Mostly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Cloudy
|
83°F |
3 to 8 mph
W
|
|
Saturday Night
Aug 29
|
Rain Showers Likely
|
53°F |
8 mph
S
|
|
Sunday
Aug 30
|
Showers And Thunderstorms Likely
|
72°F |
8 to 20 mph
W
|
|
Sunday Night
Aug 30
|
Chance Rain Showers
|
48°F |
14 to 21 mph
W
|
|
Monday
Aug 31
|
Sunny
|
77°F |
14 to 20 mph
W
|
|
Monday Night
Aug 31
|
Mostly Clear
|
50°F |
5 to 12 mph
SSE
|
|
Tuesday
Sep 1
|
Sunny
|
85°F |
6 to 10 mph
SE
|
|
Tuesday Night
Sep 1
|
Partly Cloudy then Slight Chance Rain Showers
|
53°F |
6 to 10 mph
SSE
|
|
Wednesday
Sep 2
|
Mostly Sunny
|
82°F |
5 to 12 mph
W
|
|
Wednesday Night
Sep 2
|
Slight Chance Rain Showers
|
52°F |
9 to 13 mph
W
|
|
Thursday
Sep 3
|
Mostly Sunny
|
78°F |
9 to 16 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Chinook.