Fort Smith, MT Weather Forecast
Local 7-day forecast
Partly Sunny then Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Fort Smith, MT in one place.
A chance of rain showers after noon. Partly sunny. High near 76, with temperatures falling to around 71 in the afternoon. Southwest wind 15 to 22 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: Apr 17, 2026 11:32 PM MDT.
The active forecast window currently covers Apr 22 to Apr 24, 2026 for Fort Smith, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 24, 2026
- Latest sync
- Apr 17, 2026 11:32 PM MDT
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Fort Smith
Wednesday looks like the warmest upcoming period in Fort Smith at 76 degrees F.
Thursday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Thursday at about 26 to 31 mph WNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 17, 2026 11:32 PM MDT
- Coverage
- 3 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. Low around 43, with temperatures rising to around 45 overnight. West wind 22 to 25 mph. Chance of precipitation is 60%.
Rain showers. Mostly cloudy. High near 53, with temperatures falling to around 49 in the afternoon. West northwest wind 26 to 31 mph, with gusts as high as 45 mph. Chance of precipitation is 80%.
Rain showers likely before 9pm, then rain and snow showers likely. Mostly cloudy, with a low around 31. Northwest wind 20 to 26 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
A chance of snow showers. Partly sunny, with a high near 46. North northwest wind around 18 mph. New snow accumulation of less than half an inch possible.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Partly Sunny then Chance Rain Showers
|
76°F |
15 to 22 mph
SW
|
|
Wednesday Night
Apr 22
|
Rain Showers Likely
|
43°F |
22 to 25 mph
W
|
|
Thursday
Apr 23
|
Rain Showers
|
53°F |
26 to 31 mph
WNW
|
|
Thursday Night
Apr 23
|
Rain And Snow Showers Likely
|
31°F |
20 to 26 mph
NW
|
|
Friday
Apr 24
|
Chance Snow Showers
|
46°F |
18 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fort Smith.