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Fort Smith MT Weather - Partly Cloudy - 48°F
Partly Cloudy
48°F
Updated 4:39 am
Feels Like 49°F
Humidity 81%
Wind N 9 mph
Barometer  30.21 in
Dew Point 42°F
Fort Smith MT Weather - Partly Cloudy - 9°C
Partly Cloudy
9°C
Updated 4:39 am
Feels Like 9°C
Humidity 81%
Wind N 14 km/h
Barometer  102.3 kPa
Dew Point 6°C
Fort Smith, MT Weather and Current Conditionsfort smith mt weather forecast

Fort Smith, MT Weather Forecast

Fort Smith Montana WeatherFort Smith, Montana Weather Weather Forecast
14 day API Fort Smith, MT weather forecast. Note. Our 7-day weather forecast for Fort Smith, Montana is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Fort Smith, MT Weather Forecast Dated: 439 AM Thu Sep 17 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Thursday, September 17, 2026

Mid-Morning
Fort Smith Weather - 2026-09-17 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Fort Smith Weather - 2026-09-17 - Afternoon - Scattered Showers
71°F 22°C
Scattered Showers
Early-Evening
Fort Smith Weather - 2026-09-17 - Evening - Overcast
67°F 20°C
Overcast
Pleasant near 71°F 22°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.

Friday, September 18, 2026

Mid-Morning
Fort Smith Weather - 2026-09-18 - Morning - Sunny
70°F 21°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-18 - Afternoon - Scattered Showers
80°F 26°C
Scattered Showers
Early-Evening
Fort Smith Weather - 2026-09-18 - Evening - Scattered Showers
63°F 17°C
Scattered Showers
Balmy with temperatures reaching 80°F 26°C, scattered downpours possible, with increasing humidity and steady pressure. Winds turning from the SSW to the WNW at 6 mph 10 km/h.

Saturday, September 19, 2026

Mid-Morning
Fort Smith Weather - 2026-09-19 - Morning - Light Showers
53°F 11°C
Light Showers
Mid-Afternoon
Fort Smith Weather - 2026-09-19 - Afternoon - Nearby Thunderstorms
62°F 17°C
Nearby Thunderstorms
Early-Evening
Fort Smith Weather - 2026-09-19 - Evening - Nearby Thunderstorms
56°F 13°C
Nearby Thunderstorms
Comfortable at 62°F 17°C, locally heavy downpours at times, with lower humidity and steady pressure.

Sunday, September 20, 2026

Mid-Morning
Fort Smith Weather - 2026-09-20 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-20 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Fort Smith Weather - 2026-09-20 - Evening - Sunny
64°F 18°C
Sunny
Mild temperatures up to 72°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the SW to the SSE at 7 mph 11 km/h.

Monday, September 21, 2026

Mid-Morning
Fort Smith Weather - 2026-09-21 - Morning - Sunny
65°F 18°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-21 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Fort Smith Weather - 2026-09-21 - Evening - Partly Cloudy
70°F 21°C
Partly Cloudy
Mild with a high of 77°F 25°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the SSW to the SSE at 4 mph 6 km/h.

Tuesday, September 22, 2026

Mid-Morning
Fort Smith Weather - 2026-09-22 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-22 - Afternoon - Scattered Showers
52°F 11°C
Scattered Showers
Early-Evening
Fort Smith Weather - 2026-09-22 - Evening - Scattered Showers
50°F 10°C
Scattered Showers
Cool and brisk at 52°F 11°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds swinging from the NNW to the S at 10 mph 17 km/h. Gusts up to 20 mph 31 km/h.

Wednesday, September 23, 2026

Mid-Morning
Fort Smith Weather - 2026-09-23 - Morning - Sunny
54°F 12°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-23 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Fort Smith Weather - 2026-09-23 - Evening - Sunny
61°F 16°C
Sunny
Comfortable with temperatures reaching 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the SW to the SSW at 7 mph 11 km/h.

Thursday, September 24, 2026

Mid-Morning
Fort Smith Weather - 2026-09-24 - Morning - Partly Cloudy
60°F 16°C
Partly Cloudy
Mid-Afternoon
Fort Smith Weather - 2026-09-24 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Fort Smith Weather - 2026-09-24 - Evening - Sunny
67°F 20°C
Sunny
Enjoyable around 75°F 24°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling.

Friday, September 25, 2026

Mid-Morning
Fort Smith Weather - 2026-09-25 - Morning - Partly Cloudy
70°F 21°C
Partly Cloudy
Mid-Afternoon
Fort Smith Weather - 2026-09-25 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Fort Smith Weather - 2026-09-25 - Evening - Overcast
77°F 25°C
Overcast
Warm temperatures up to 84°F 29°C, partly cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds SW at 10 mph 15 km/h.

Saturday, September 26, 2026

Mid-Morning
Fort Smith Weather - 2026-09-26 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-26 - Afternoon - Overcast
84°F 29°C
Overcast
Early-Evening
Fort Smith Weather - 2026-09-26 - Evening - Overcast
78°F 25°C
Overcast
Very warm with a high of 84°F 29°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the SSW to the SW at 16 mph 26 km/h. Gusts up to 26 mph 42 km/h.

Sunday, September 27, 2026

Mid-Morning
Fort Smith Weather - 2026-09-27 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Fort Smith Weather - 2026-09-27 - Afternoon - Cloudy
77°F 25°C
Cloudy
Early-Evening
Fort Smith Weather - 2026-09-27 - Evening - Overcast
58°F 15°C
Overcast
Pleasant near 77°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with increasing humidity and steady pressure. Winds moving from the SW to the NE at 5 mph 8 km/h.

Monday, September 28, 2026

Mid-Morning
Fort Smith Weather - 2026-09-28 - Morning - Scattered Showers
51°F 10°C
Scattered Showers
Mid-Afternoon
Fort Smith Weather - 2026-09-28 - Afternoon - Light Showers
48°F 9°C
Light Showers
Early-Evening
Fort Smith Weather - 2026-09-28 - Evening - Light Showers
44°F 7°C
Light Showers
Crisp with a high near 48°F 9°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds swinging from the NNE to the NE at 10 mph 16 km/h.

Tuesday, September 29, 2026

Mid-Morning
Fort Smith Weather - 2026-09-29 - Morning - Scattered Showers
41°F 5°C
Scattered Showers
Mid-Afternoon
Fort Smith Weather - 2026-09-29 - Afternoon - Overcast
48°F 9°C
Overcast
Early-Evening
Fort Smith Weather - 2026-09-29 - Evening - Overcast
46°F 8°C
Overcast
Brisk around 48°F 9°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling.

Wednesday, September 30, 2026

Mid-Morning
Fort Smith Weather - 2026-09-30 - Morning - Overcast
43°F 6°C
Overcast
Mid-Afternoon
Fort Smith Weather - 2026-09-30 - Afternoon - Sunny
57°F 14°C
Sunny
Early-Evening
Fort Smith Weather - 2026-09-30 - Evening - Sunny
51°F 11°C
Sunny
Cool and brisk at 57°F 14°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the WNW to the SSE at 6 mph 9 km/h.

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Weather by the Numbers

Thu, 17th
Fort Smith MT Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 72°F 22°C
Lo: 49°F 9°C
Sunrise 06:53 AM
Sunset 07:19 PM
Wind NE 3 mph5 km/h
Dew Point 36°F2°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 9% *
Humidity 31%
Fri, 18th
Fort Smith MT Weather - Friday, Sep 18, 2026 - Sunny
Hi: 80°F 27°C
Lo: 57°F 14°C
Sunrise 06:54 AM
Sunset 07:17 PM
Wind NNE 5 mph9 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 29.88 in1012 mb
POP 1% *
Humidity 31%
Sat, 19th
Fort Smith MT Weather - Saturday, Sep 19, 2026 - Light Rain Shower
Hi: 62°F 17°C
Lo: 52°F 11°C
Sunrise 06:55 AM
Sunset 07:15 PM
Wind N 5 mph9 km/h
Dew Point 47°F8°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 37% *
Humidity 64%
Sun, 20th
Fort Smith MT Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 72°F 22°C
Lo: 51°F 11°C
Sunrise 06:57 AM
Sunset 07:13 PM
Wind WNW 5 mph9 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 37%
Mon, 21st
Fort Smith MT Weather - Monday, Sep 21, 2026 - Sunny
Hi: 77°F 25°C
Lo: 51°F 11°C
Sunrise 06:58 AM
Sunset 07:11 PM
Wind SW 5 mph8 km/h
Dew Point 34°F1°C
uv Index 6
Barometric Pressure 29.8 in1009 mb
POP 0% *
Humidity 23%
Tue, 22nd
Fort Smith MT Weather - Tuesday, Sep 22, 2026 - Patchy Rain Nearby
Hi: 64°F 18°C
Lo: 46°F 8°C
Sunrise 06:59 AM
Sunset 07:09 PM
Wind NNW 19 mph31 km/h
Dew Point 33°F0°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 17% *
Humidity 50%
Wed, 23rd
Fort Smith MT Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 68°F 20°C
Lo: 45°F 7°C
Sunrise 07:00 AM
Sunset 07:07 PM
Wind NW 14 mph22 km/h
Dew Point 19°F-7°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 17%
Thu, 24th
Fort Smith MT Weather - Thursday, Sep 24, 2026 - Partly Cloudy
Hi: 75°F 24°C
Lo: 50°F 10°C
Sunrise 07:01 AM
Sunset 07:05 PM
Wind NNE 2 mph4 km/h
Dew Point 30°F-1°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 22%
Fri, 25th
Fort Smith MT Weather - Friday, Sep 25, 2026 - Overcast
Hi: 84°F 29°C
Lo: 60°F 15°C
Sunrise 07:03 AM
Sunset 07:03 PM
Wind SW 6 mph10 km/h
Dew Point 28°F-2°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 9% *
Humidity 15%
Sat, 26th
Fort Smith MT Weather - Saturday, Sep 26, 2026 - Partly Cloudy
Hi: 84°F 29°C
Lo: 67°F 19°C
Sunrise 07:04 AM
Sunset 07:01 PM
Wind SW 14 mph23 km/h
Dew Point 37°F3°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 4% *
Humidity 20%
Sun, 27th
Fort Smith MT Weather - Sunday, Sep 27, 2026 - Overcast
Hi: 77°F 25°C
Lo: 53°F 12°C
Sunrise 07:05 AM
Sunset 06:59 PM
Wind SW 16 mph26 km/h
Dew Point 38°F3°C
uv Index 5
Barometric Pressure 29.77 in1008 mb
POP 8% *
Humidity 28%
Mon, 28th
Fort Smith MT Weather - Monday, Sep 28, 2026 - Patchy Rain Nearby
Hi: 52°F 11°C
Lo: 42°F 6°C
Sunrise 07:06 AM
Sunset 06:57 PM
Wind NNE 10 mph16 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 32% *
Humidity 81%
Tue, 29th
Fort Smith MT Weather - Tuesday, Sep 29, 2026 - Patchy Rain Nearby
Hi: 48°F 9°C
Lo: 40°F 4°C
Sunrise 07:08 AM
Sunset 06:56 PM
Wind E 7 mph11 km/h
Dew Point 39°F4°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 41% *
Humidity 88%
Wed, 30th
Fort Smith MT Weather - Wednesday, Sep 30, 2026 - Sunny
Hi: 57°F 14°C
Lo: 40°F 4°C
Sunrise 07:09 AM
Sunset 06:54 PM
Wind NW 9 mph14 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 5% *
Humidity 63%
* POP = Probability of Precipitation. Data for 12:00 PM.