Model estimate for 9:00 PM MDT (no recent station report)

Fort Smith, MT weather

Clear and 39°4°.

Forecasts agree

Now 39°4°

Clear · Feels like 36°2°

Wind: 5 mph8 km/h; From the east-southeast. Up to 5 mph8 km/h through 9 AM
Dew point: 30°−1°; Dry, static shocks likely
UV tomorrow: 4Moderate; Moderate 12–4 PM · peak 4

None rain now, through the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below freezing tomorrow 4–10 AM (low 30°−1°)
Low 30°−1° tomorrow at 7 AM
Above 40°4° tomorrow by 11 AM
High 49°9° tomorrow at 4 PM
Below 40°4° tomorrow night after 9 PM

TonightDown to 31°−1° by 4 AM · freezing, low 31°−1° · Clear
Tomorrow morningUp to 40°4° by 11 AM · freezing, low 30°−1° · Clear
Tomorrow afternoonUp to 49°9° by 4 PM · Clear
Tomorrow nightDown to 33°1° by 4 AM · Mostly cloudy
Monday morningUp to 44°7° by 11 AM · freezing, low 32°0° · Partly cloudy
Monday afternoonUp to 55°13° by 3 PM · Partly cloudy
Monday nightDown to 45°7° by 8 PM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 9p	Clear	39°4° (likely 39°4° to 42°6°)	36°2°	0%	5 mph8 km/h from ESE, gusts 4 mph7 km/h	71%	0%	0
Sat 10p	Clear	37°3° (likely 37°3° to 41°5°)	33°1°	0%	5 mph8 km/h from SE, gusts 3 mph5 km/h	78%	0%	0
Sat 11p	Clear	36°2° (likely 36°2° to 40°4°)	32°0°	0%	5 mph8 km/h from E, gusts 3 mph5 km/h	83%	0%	0
Sun 12a	Clear	35°2° (likely 35°2° to 39°4°)	32°0°	0%	3 mph5 km/h from S, gusts 3 mph6 km/h	88%	0%	0
Sun 1a	Clear	34°1° (likely 34°1° to 39°4°)	31°−1°	0%	3 mph5 km/h from S, gusts 3 mph4 km/h	90%	0%	0
Sun 2a	Clear	34°1° (likely 34°1° to 39°4°)	34°1°	0%	2 mph3 km/h from S, gusts 3 mph4 km/h	91%	0%	0
Sun 3a	Clear	33°1° (likely 33°1° to 38°3°)	33°1°	0%	2 mph3 km/h from SW, gusts 3 mph4 km/h	94%	0%	0
Sun 4a	Clear	31°−1° (likely 31°−1° to 38°3°)	31°−1°	0%	2 mph3 km/h from N, gusts 3 mph4 km/h	98%	0%	0
Sun 5a	Clear	32°0° (likely 32°0° to 38°3°)	32°0°	0%	1 mph2 km/h from S, gusts 2 mph4 km/h	92%	0%	0
Sun 6a	Clear	31°−1° (likely 31°−1° to 38°3°)	31°−1°	0%	2 mph3 km/h from N, gusts 3 mph5 km/h	91%	0%	0
Sun 7a	Clear	30°−1° (likely 30°−1° to 38°3°)	30°−1°	0%	1 mph2 km/h from N, gusts 2 mph4 km/h	93%	0%	0
Sun 8a	Sunny	30°−1° (likely 30°−1° to 39°4°)	30°−1°	0%	1 mph2 km/h from WNW, gusts 2 mph3 km/h	94%	0%	0
Sun 9a	Sunny	32°0° (likely 32°0° to 41°5°)	29°−2°	0%	3 mph5 km/h from NNW, gusts 3 mph5 km/h	88%	0%	0
Sun 10a	Sunny	37°3° (likely 37°3° to 44°7°)	34°1°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	74%	0%	1
Sun 11a	Sunny	40°4° (likely 40°4° to 46°8°)	36°2°	0%	6 mph10 km/h from N, gusts 6 mph10 km/h	66%	0%	2
Sun 12p	Sunny	43°6° (likely 43°6° to 49°9°)	39°4°	0%	7 mph11 km/h from N, gusts 7 mph11 km/h	57%	1%	3
Sun 1p	Sunny	46°8° (likely 45°7° to 50°10°)	42°6°	0%	7 mph11 km/h from NNE, gusts 7 mph11 km/h	54%	1%	4
Sun 2p	Sunny	47°8° (likely 47°8° to 51°11°)	44°7°	0%	7 mph11 km/h from NE, gusts 8 mph13 km/h	50%	3%	4
Sun 3p	Sunny	48°9° (likely 47°8° to 51°11°)	45°7°	0%	7 mph11 km/h from NE, gusts 8 mph13 km/h	49%	15%	3
Sun 4p	Sunny	49°9° (likely 47°8° to 51°11°)	47°8°	0%	6 mph10 km/h from NE, gusts 8 mph12 km/h	49%	38%	2
Sun 5p	Sunny	49°9° (likely 46°8° to 51°11°)	47°8°	0%	5 mph8 km/h from NE, gusts 6 mph10 km/h	50%	41%	1
Sun 6p	Cloudy	45°7° (likely 43°6° to 49°9°)	45°7°	5%	2 mph3 km/h from SSW, gusts 4 mph7 km/h	61%	80%	0
Sun 7p	Cloudy	43°6° (likely 40°4° to 46°8°)	43°6°	5%	2 mph3 km/h from SSW, gusts 4 mph7 km/h	67%	79%	0
Sun 8p	Cloudy	42°6° (likely 39°4° to 46°8°)	42°6°	5%	2 mph3 km/h from SSW, gusts 4 mph7 km/h	71%	75%	0
Sun 9p	Cloudy	39°4° (likely 39°4° to 46°8°)	39°4°	5%	2 mph3 km/h from ESE, gusts 3 mph5 km/h	75%	72%	0
Sun 10p	Cloudy	38°3° (likely 38°3° to 45°7°)	38°3°	5%	2 mph3 km/h from ESE, gusts 5 mph7 km/h	81%	72%	0
Sun 11p	Cloudy	37°3° (likely 37°3° to 44°7°)	37°3°	5%	2 mph3 km/h from ESE, gusts 5 mph8 km/h	86%	68%	0
Mon 12a	Partly cloudy	36°2° (likely 36°2° to 43°6°)	36°2°	5%	1 mph2 km/h from WNW, gusts 5 mph8 km/h	90%	79%	0
Mon 1a	Cloudy	36°2° (likely 36°2° to 43°6°)	36°2°	5%	1 mph2 km/h from WNW, gusts 4 mph7 km/h	92%	75%	0
Mon 2a	Cloudy	35°2° (likely 35°2° to 42°6°)	35°2°	5%	1 mph2 km/h from WNW, gusts 4 mph7 km/h	94%	76%	0
Mon 3a	Partly cloudy	34°1° (likely 34°1° to 41°5°)	34°1°	5%	0 mph0 km/h, gusts 4 mph6 km/h	97%	54%	0
Mon 4a	Partly cloudy	33°1° (likely 32°0° to 41°5°)	33°1°	5%	0 mph0 km/h, gusts 4 mph6 km/h	100%	60%	0
Mon 5a	Clear	33°1° (likely 32°0° to 40°4°)	33°1°	5%	0 mph0 km/h, gusts 3 mph4 km/h	100%	36%	0
Mon 6a	Clear	33°1° (likely 30°−1° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	37%	0
Mon 7a	Clear	32°0° (likely 29°−2° to 40°4°)	32°0°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	35%	0
Mon 8a	Sunny	33°1° (likely 29°−2° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	32%	0
Mon 9a	Sunny	34°1° (likely 32°0° to 41°5°)	34°1°	0%	1 mph2 km/h from SW, gusts 2 mph4 km/h	100%	26%	0
Mon 10a	Sunny	38°3° (likely 37°3° to 44°7°)	38°3°	0%	1 mph2 km/h from SW, gusts 3 mph5 km/h	94%	19%	1
Mon 11a	Sunny	44°7° (likely 41°5° to 47°8°)	44°7°	0%	1 mph2 km/h from SW, gusts 4 mph7 km/h	84%	13%	2
Mon 12p	Sunny	48°9° (likely 44°7° to 51°11°)	47°8°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	75%	8%	3
Mon 1p	Cloudy	52°11° (likely 48°9° to 54°12°)	52°11°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	68%	57%	4
Mon 2p	Partly sunny	54°12° (likely 51°11° to 56°13°)	54°12°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	63%	47%	4
Mon 3p	Mostly sunny	55°13° (likely 53°12° to 58°14°)	55°13°	0%	8 mph13 km/h from E, gusts 9 mph15 km/h	61%	20%	3
Mon 4p	Sunny	54°12° (likely 54°12° to 59°15°)	54°12°	0%	8 mph13 km/h from E, gusts 10 mph17 km/h	63%	37%	2
Mon 5p	Sunny	53°12° (likely 53°12° to 58°14°)	53°12°	0%	8 mph13 km/h from E, gusts 11 mph18 km/h	69%	33%	1
Mon 6p	Mostly clear	50°10° (likely 50°10° to 53°12°)	48°9°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	75%	14%	0
Mon 7p	Clear	48°9° (likely 45°7° to 51°11°)	46°8°	0%	5 mph8 km/h from E, gusts 6 mph9 km/h	81%	4%	0
Mon 8p	Mostly clear	45°7° (likely 41°5° to 50°10°)	43°6°	0%	5 mph8 km/h from E, gusts 4 mph6 km/h	86%	4%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Drizzle. High 52°11°, low 30°−1°. Rain 0.01 in0.3 mm, 40% chance. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 36°2°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Official NWS forecast
Tonight: Patchy fog after 3am. Mostly clear. Low around 30, with temperatures rising to around 32 overnight. South southeast wind 1 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
51°11°–53°12°
Low, likely
30°−1°–35°2°
Wind
17 mph27 km/h, gusts 33 mph53 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 49°9°, low 32°0°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 33°1°
  Dry
Official NWS forecast
Day: Sunny, with a high near 49. North wind 1 to 7 mph.
Night: Areas of fog after 3am. Mostly cloudy, with a low around 32. South southwest wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
47°8°–51°11°
Low, likely
32°0°–36°2°
Wind
7 mph12 km/h, gusts 17 mph27 km/h
UV peak
4
Monday, Oct 26. Fog. High 55°13°, low 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 41°5°
  20% chance · 0.01 in0.3 mm
Official NWS forecast
Day: Areas of fog before 9am. Mostly sunny. High near 55, with temperatures falling to around 53 in the afternoon. Southeast wind 0 to 8 mph.
Night: Patchy fog between 9pm and midnight, then patchy fog and a slight chance of rain showers. Partly cloudy, with a low around 35. South southeast wind around 5 mph. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
52°11°–58°14°
Low, likely
28°−2°–40°4°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Showers. High 56°13°, low 35°2°. Rain 0.14 in3.6 mm, 70% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 40°5°
  60% chance · 0.08 in2.1 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 56°13°
  60% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely and patchy fog. Mostly cloudy. High near 56, with temperatures falling to around 53 in the afternoon. West wind 3 to 17 mph. Chance of precipitation is 70%.
Night: A slight chance of rain showers after midnight. Partly cloudy, with a low around 35. West southwest wind 9 to 14 mph. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
50°10°–60°16°
Low, likely
34°1°–44°7°
Wind
24 mph39 km/h, gusts 37 mph59 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 58°14°, low 34°1°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny. High near 58, with temperatures falling to around 55 in the afternoon. Southwest wind 6 to 12 mph.
Night: Partly cloudy, with a low around 34. South wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–58°14°
Low, likely
34°1°–42°6°
Wind
13 mph20 km/h, gusts 28 mph46 km/h
UV peak
4
Thursday, Oct 29. Mostly cloudy. High 56°13°, low 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 35°2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny. High near 56, with temperatures falling to around 53 in the afternoon. East northeast wind 2 to 6 mph.
Night: Mostly cloudy, with a low around 35. West wind around 3 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–63°17°
Low, likely
35°2°–40°4°
Wind
7 mph12 km/h, gusts 19 mph31 km/h
UV peak
3
Friday, Oct 30. Cloudy. High 54°12°, low 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 41°5°
  20% chance
4. Overnight
  midnight–6 AM
  Partly cloudy, 37°3°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny. High near 54, with temperatures falling to around 51 in the afternoon. West northwest wind 2 to 6 mph.
Night: A slight chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. West southwest wind around 3 mph. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–54°12°
Low, likely
31°−1°–37°3°
Wind
7 mph10 km/h, gusts 14 mph23 km/h
UV peak
3
Saturday, Oct 31. Mostly cloudy. High 54°12°, low 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  20% chance · 0.1 in0.3 cm
2. Afternoon
  noon–6 PM
  Mostly sunny, 47°8°
  20% chance · 0.02 in0.4 mm
3. Evening
  6 PM–midnight
  Mostly clear, 43°6°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 38°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny. High near 54, with temperatures falling to around 51 in the afternoon. West northwest wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–61°16°
Low, likely
27°−3°–45°7°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 52°11°, low 37°3°. Rain 0.07 in1.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  30% chance · 0.07 in1.8 mm
4. Overnight
  midnight–6 AM
  Clear, 44°6°
  30% chance · 0.04 in1.1 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–60°16°
Low, likely
26°−3°–45°7°
Wind
15 mph23 km/h, gusts 30 mph48 km/h
UV peak
3
Monday, Nov 2. Sunny. High 53°12°, low 40°4°. Rain 0.13 in3.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 45°7°
  20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–60°16°
Low, likely
36°2°–43°6°
Wind
15 mph23 km/h, gusts 33 mph54 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
37% chance of rain, high 52°, low 30°.
Tomorrow
Dry, high 49°, low 32°, cooling off.
Monday
Dry, high 55°, low 35°, warming up.
Rest of week
Highs 52–58°; chance of precipitation on Tuesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (BYZ) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Bighorn River near St. Xavier

0.8 mi

Level: 61.1 ft
Flow: 2,240 cfs

Reading from Sat 7:15 PM · NWS gauge page

Bighorn River at Bighorn Reservoir

1.3 mi

Level: 3626 ft

Reading from Sat 8 PM · NWS gauge page

Bighorn River at ST. Xavier Bridge

13 mi

Level: 6.1 ft
Flow: 1,630 cfs

Reading from Sat 7:30 PM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 31 min; Losing 3 min 3 s a day; shortest Dec 21, 1 h 47 min less
Golden hour: 5:29–6:29 PM; Morning 7:21–8:21 AM
Blue hour: 6:29–6:41 PM; Morning 7:09–7:21 AM; first light 7:09 AM

Stars tonight? Fair

Clear 9:13 PM–7:11 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:54 AM · rises 5:11 PM
Full moon: Oct 25
New moon: Nov 9

Looking south from Fort Smith. The highest point on the skyline is about 5,200 ft, 5 mi away.Skyline from USGS elevation data, heights drawn up to 2.5× taller. Sky, sun and moon as they are now.