Fort Smith, MT Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Fort Smith, MT in one place.
A chance of showers and thunderstorms between noon and 3pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 62, with temperatures falling to around 60 in the afternoon. West northwest wind 14 to 24 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Fort Smith, 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: Jun 9, 2026 12:27 PM MDT.
The active forecast window currently covers Jun 10 to Jun 15, 2026 for Fort Smith, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 12:27 PM MDT
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Fort Smith
Friday looks like the warmest upcoming period in Fort Smith at 74 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Wednesday Night at about 23 to 28 mph WNW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 12:27 PM MDT
- Coverage
- 7 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
Rain showers likely. Mostly cloudy, with a low around 45. West northwest wind 23 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 70%.
A chance of rain showers before noon. Mostly sunny, with a high near 68. West northwest wind 15 to 26 mph. Chance of precipitation is 30%.
Mostly clear, with a low around 47. Southwest wind 5 to 13 mph.
Sunny, with a high near 74. Northwest wind 5 to 10 mph.
A slight chance of rain showers after midnight. Partly cloudy. Low around 49, with temperatures rising to around 51 overnight. Northeast wind 5 to 12 mph. Chance of precipitation is 20%.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny. High near 68, with temperatures falling to around 66 in the afternoon. North wind 5 to 15 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 47. North northwest wind 3 to 17 mph. Chance of precipitation is 30%.
A slight chance of rain showers. Mostly sunny, with a high near 67. North northwest wind 2 to 12 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 48. Northwest wind 3 to 12 mph.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny. High near 71, with temperatures falling to around 69 in the afternoon. Northwest wind 5 to 13 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50. North wind 5 to 14 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Partly Sunny then Chance Showers And Thunderstorms
|
62°F |
14 to 24 mph
WNW
|
|
Wednesday Night
Jun 10
|
Rain Showers Likely
|
45°F |
23 to 28 mph
WNW
|
|
Thursday
Jun 11
|
Chance Rain Showers then Mostly Sunny
|
68°F |
15 to 26 mph
WNW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
47°F |
5 to 13 mph
SW
|
|
Friday
Jun 12
|
Sunny
|
74°F |
5 to 10 mph
NW
|
|
Friday Night
Jun 12
|
Partly Cloudy then Slight Chance Rain Showers
|
49°F |
5 to 12 mph
NE
|
|
Saturday
Jun 13
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
68°F |
5 to 15 mph
N
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
47°F |
3 to 17 mph
NNW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers
|
67°F |
2 to 12 mph
NNW
|
|
Sunday Night
Jun 14
|
Partly Cloudy
|
48°F |
3 to 12 mph
NW
|
|
Monday
Jun 15
|
Chance Rain Showers
|
71°F |
5 to 13 mph
NW
|
|
Monday Night
Jun 15
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
50°F |
5 to 14 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fort Smith.