Model estimate for 4:00 PM MDT (no recent station report)

Darby, MT weather

Sunny and 54°12°.

Mostly agree

Now 54°12°

Sunny

Wind: 3 mph5 km/h; From the east-southeast. Up to 6 mph10 km/h through 4 AM
Dew point: 33°1°; Dry, static shocks likely
UV tomorrow: 3Moderate; Moderate 12–4 PM · peak 3
Air quality: 2Good; Main pollutant: PM2.5 (fine particles)

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 40°4° tonight after 9 PM
Below freezing tomorrow 7–9 AM (low 31°−1°)
Low 31°−1° tomorrow at 7 AM
Above 40°4° tomorrow by 10 AM

This afternoonNear 54°12° · Clear
TonightDown to 33°1° by 5 AM · Clear
Tomorrow morningUp to 45°7° by 11 AM · freezing, low 31°−1° · Partly cloudy
Tomorrow afternoonUp to 58°14° by 3 PM · Mostly cloudy
Tomorrow nightDown to 34°1° by 5 AM · Mostly cloudy
Monday morningUp to 47°8° by 11 AM · freezing, low 32°0° · Mostly cloudy
Monday afternoonUp to 58°14° by 3 PM · rain chance 30% · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 4p	Sunny	54°12° (likely 50°10° to 55°13°)	54°12°	0%	3 mph5 km/h from ESE, gusts 7 mph11 km/h	44%	11%	3
Sat 5p	Partly sunny	54°12° (likely 50°10° to 55°13°)	54°12°	0%	2 mph3 km/h from ENE, gusts 5 mph8 km/h	44%	22%	2
Sat 6p	Sunny	51°11° (likely 48°9° to 53°12°)	51°11°	0%	2 mph3 km/h from N, gusts 4 mph6 km/h	52%	15%	1
Sat 7p	Clear	46°8° (likely 43°6° to 48°9°)	46°8°	0%	2 mph3 km/h from N, gusts 3 mph4 km/h	64%	9%	0
Sat 8p	Clear	41°5° (likely 39°4° to 46°8°)	39°4°	0%	3 mph5 km/h from NE, gusts 5 mph8 km/h	72%	20%	0
Sat 9p	Clear	38°3° (likely 36°2° to 42°6°)	34°1°	0%	6 mph10 km/h from E, gusts 3 mph5 km/h	82%	9%	0
Sat 10p	Clear	37°3° (likely 35°2° to 42°6°)	32°0°	0%	6 mph10 km/h from ESE, gusts 3 mph5 km/h	85%	14%	0
Sat 11p	Partly cloudy	37°3° (likely 34°1° to 41°5°)	32°0°	0%	6 mph10 km/h from ESE, gusts 4 mph6 km/h	85%	28%	0
Sun 12a	Clear	36°2° (likely 33°1° to 40°4°)	31°−1°	0%	6 mph10 km/h from SE, gusts 5 mph7 km/h	85%	10%	0
Sun 1a	Clear	35°2° (likely 32°0° to 40°4°)	30°−1°	0%	6 mph10 km/h from SE, gusts 5 mph7 km/h	87%	15%	0
Sun 2a	Clear	35°2° (likely 31°−1° to 40°4°)	31°−1°	0%	5 mph8 km/h from SE, gusts 5 mph8 km/h	86%	8%	0
Sun 3a	Clear	34°1° (likely 31°−1° to 40°4°)	30°−1°	0%	5 mph8 km/h from SE, gusts 4 mph6 km/h	86%	16%	0
Sun 4a	Clear	34°1° (likely 31°−1° to 40°4°)	30°−1°	0%	5 mph8 km/h from SSE, gusts 3 mph5 km/h	87%	16%	0
Sun 5a	Clear	33°1° (likely 31°−1° to 39°4°)	29°−2°	0%	5 mph8 km/h from SSE, gusts 3 mph5 km/h	87%	13%	0
Sun 6a	Mostly clear	33°1° (likely 31°−1° to 38°3°)	29°−2°	0%	5 mph8 km/h from S, gusts 3 mph6 km/h	86%	33%	0
Sun 7a	Mostly clear	31°−1° (likely 30°−1° to 38°3°)	26°−3°	0%	5 mph8 km/h from SSE, gusts 3 mph4 km/h	87%	24%	0
Sun 8a	Mostly sunny	31°−1° (likely 30°−1° to 38°3°)	26°−3°	0%	5 mph8 km/h from SSE, gusts 3 mph4 km/h	87%	20%	0
Sun 9a	Mostly sunny	35°2° (likely 32°0° to 40°4°)	31°−1°	0%	5 mph8 km/h from SE, gusts 3 mph5 km/h	77%	19%	0
Sun 10a	Mostly sunny	41°5° (likely 37°3° to 43°6°)	39°4°	0%	3 mph5 km/h from ESE, gusts 3 mph5 km/h	67%	36%	1
Sun 11a	Mostly sunny	45°7° (likely 42°6° to 47°8°)	45°7°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	61%	52%	2
Sun 12p	Mostly sunny	51°11° (likely 46°8° to 51°11°)	51°11°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	52%	51%	3
Sun 1p	Partly sunny	54°12° (likely 50°10° to 54°12°)	54°12°	0%	2 mph3 km/h from NNE, gusts 5 mph7 km/h	46%	55%	3
Sun 2p	Partly sunny	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from N, gusts 5 mph7 km/h	43%	60%	3
Sun 3p	Partly sunny	58°14° (likely 53°12° to 58°14°)	58°14°	0%	5 mph8 km/h from N, gusts 6 mph9 km/h	41%	67%	3
Sun 4p	Partly sunny	57°14° (likely 53°12° to 57°14°)	57°14°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	41%	67%	2
Sun 5p	Partly sunny	56°13° (likely 51°11° to 56°13°)	56°13°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	44%	68%	1
Sun 6p	Cloudy	51°11° (likely 48°9° to 54°12°)	51°11°	0%	3 mph5 km/h from NNW, gusts 7 mph11 km/h	56%	67%	1
Sun 7p	Cloudy	45°7° (likely 43°6° to 49°9°)	44°7°	0%	3 mph5 km/h from NNW, gusts 6 mph10 km/h	69%	72%	0
Sun 8p	Cloudy	42°6° (likely 41°5° to 46°8°)	40°4°	0%	3 mph5 km/h from NNW, gusts 5 mph7 km/h	75%	75%	0
Sun 9p	Cloudy	40°4° (likely 40°4° to 45°7°)	37°3°	0%	5 mph8 km/h from ESE, gusts 3 mph5 km/h	84%	77%	0
Sun 10p	Cloudy	39°4° (likely 38°3° to 44°7°)	36°2°	0%	5 mph8 km/h from ESE, gusts 2 mph4 km/h	85%	77%	0
Sun 11p	Cloudy	38°3° (likely 37°3° to 43°6°)	34°1°	0%	5 mph8 km/h from ESE, gusts 2 mph3 km/h	86%	60%	0
Mon 12a	Cloudy	37°3° (likely 37°3° to 42°6°)	33°1°	0%	5 mph8 km/h from SE, gusts 2 mph3 km/h	86%	72%	0
Mon 1a	Cloudy	36°2° (likely 36°2° to 42°6°)	32°0°	0%	5 mph8 km/h from SE, gusts 2 mph4 km/h	87%	76%	0
Mon 2a	Cloudy	36°2° (likely 36°2° to 42°6°)	32°0°	0%	5 mph8 km/h from SE, gusts 3 mph4 km/h	86%	77%	0
Mon 3a	Clear	36°2° (likely 36°2° to 42°6°)	33°1°	0%	3 mph5 km/h from SE, gusts 4 mph6 km/h	85%	37%	0
Mon 4a	Clear	35°2° (likely 35°2° to 42°6°)	32°0°	0%	3 mph5 km/h from SE, gusts 4 mph6 km/h	87%	39%	0
Mon 5a	Clear	34°1° (likely 34°1° to 42°6°)	31°−1°	0%	3 mph5 km/h from SE, gusts 4 mph6 km/h	87%	41%	0
Mon 6a	Cloudy	34°1° (likely 34°1° to 42°6°)	30°−1°	0%	5 mph8 km/h from SE, gusts 3 mph5 km/h	86%	42%	0
Mon 7a	Cloudy	32°0° (likely 32°0° to 41°5°)	27°−3°	0%	5 mph8 km/h from SE, gusts 3 mph4 km/h	91%	45%	0
Mon 8a	Cloudy	33°1° (likely 33°1° to 41°5°)	29°−2°	0%	5 mph8 km/h from SE, gusts 3 mph5 km/h	86%	84%	0
Mon 9a	Cloudy	37°3° (likely 37°3° to 42°6°)	32°0°	0%	6 mph10 km/h from SSE, gusts 6 mph10 km/h	76%	85%	0
Mon 10a	Mostly cloudy	42°6° (likely 40°4° to 45°7°)	38°3°	0%	6 mph10 km/h from SSE, gusts 9 mph14 km/h	68%	76%	1
Mon 11a	Cloudy	47°8° (likely 45°7° to 51°11°)	44°7°	0%	6 mph10 km/h from SSE, gusts 8 mph13 km/h	60%	75%	1
Mon 12p	Cloudy	52°11° (likely 48°9° to 55°13°)	52°11°	30%	5 mph8 km/h from SSE, gusts 7 mph11 km/h	53%	74%	2
Mon 1p	Cloudy	55°13° (likely 48°9° to 56°13°)	55°13°	30%	5 mph8 km/h from SSE, gusts 5 mph7 km/h	48%	78%	2
Mon 2p	Rain	57°14° (likely 50°10° to 59°15°)	57°14°	30%	5 mph8 km/h from SSE, gusts 6 mph9 km/h	45%	83%	3
Mon 3p	Cloudy	58°14° (likely 53°12° to 60°16°)	58°14°	30%	6 mph10 km/h from SSE, gusts 8 mph14 km/h	45%	72%	2

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Partly sunny. High 54°12°, low 30°−1°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Partly sunny, 54°12°
  Dry
2. Evening
  6 PM–midnight
  Clear, 41°5°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 33°1°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 54. East wind around 3 mph.
Tonight: Partly cloudy, with a low around 30. East southeast wind 2 to 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
50°10°–56°13°
Low, likely
30°−1°–34°1°
Wind
8 mph13 km/h, gusts 16 mph25 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 58°14°, low 32°0°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 58. East wind around 5 mph.
Night: Mostly cloudy, with a low around 32. East southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
53°12°–58°14°
Low, likely
30°−1°–38°3°
Wind
7 mph12 km/h, gusts 13 mph20 km/h
UV peak
3
Monday, Oct 26. Rain. High 58°14°, low 35°2°. Rain 0.23 in5.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Rain, 58°14°
  50% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Rain, 45°7°
  80% chance · 0.22 in5.7 mm
4. Overnight
  midnight–6 AM
  Drizzle, 40°4°
  80% chance · 0.03 in0.7 mm
Official NWS forecast
Day: A chance of rain after noon. Partly sunny, with a high near 58. South southeast wind around 6 mph. Chance of precipitation is 30%.
Night: Rain before midnight, then rain and snow likely. Mostly cloudy, with a low around 35. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
52°11°–59°15°
Low, likely
35°2°–41°5°
Wind
13 mph20 km/h, gusts 21 mph33 km/h
UV peak
3
Tuesday, Oct 27. Snow. High 48°9°, low 30°−1°. Snow 0.06 in1.5 mm, 70% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 38°3°
  50% chance · 0.02 in0.5 mm
2. Afternoon
  noon–6 PM
  Cloudy, 48°9°
  50% chance
3. Evening
  6 PM–midnight
  Partly cloudy, 40°5°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 33°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain and snow likely. Mostly cloudy, with a high near 48. New rainfall amounts less than a tenth of an inch possible.
Night: A slight chance of rain before 9pm, then a slight chance of rain and snow between 9pm and midnight. Mostly cloudy, with a low around 30.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
43°6°–50°10°
Low, likely
30°−1°–37°3°
Wind
10 mph17 km/h, gusts 22 mph35 km/h
UV peak
3
Wednesday, Oct 28. Mostly cloudy. High 51°11°, low 30°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 40°5°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 34°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 51.
Night: Partly cloudy, with a low around 30.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–52°11°
Low, likely
27°−3°–34°1°
Wind
11 mph18 km/h, gusts 19 mph30 km/h
UV peak
3
Thursday, Oct 29. Snow. High 50°10°, low 30°−1°. Snow 0.03 in0.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 35°2°
  30% chance
2. Afternoon
  noon–6 PM
  Drizzle, 50°10°
  40% chance · 0.01 in0.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 39°4°
  40% chance
4. Overnight
  midnight–6 AM
  Cloudy, 34°1°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain and snow. Partly sunny, with a high near 50.
Night: A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 30.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
46°8°–53°12°
Low, likely
28°−2°–36°2°
Wind
6 mph10 km/h, gusts 24 mph39 km/h
UV peak
3
Friday, Oct 30. Snow. High 48°9°, low 27°−3°. Snow 0.08 in2 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 33°1°
  40% chance
2. Afternoon
  noon–6 PM
  Drizzle, 45°7°
  40% chance · 0.02 in0.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 38°3°
  30% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 29°−2°
  30% chance · 0.03 in0.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow. Partly sunny, with a high near 48.
Night: A slight chance of rain and snow. Mostly cloudy, with a low around 27.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–50°10°
Low, likely
24°−4°–36°2°
Wind
6 mph9 km/h, gusts 20 mph32 km/h
UV peak
2
Saturday, Oct 31. Drizzle. High 40°4°, low 25°−4°. Rain 0.08 in2 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 27°−3°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 40°5°
  Dry
3. Evening
  6 PM–midnight
  Clear, 31°−1°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 27°−3°
  Dry
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
37°3°–45°7°
Low, likely
16°−9°–36°2°
Wind
7 mph12 km/h, gusts 12 mph20 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 44°7°, low 26°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 29°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 45°7°
  Dry
3. Evening
  6 PM–midnight
  Clear, 36°2°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 30°−1°
  Dry
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
39°4°–48°9°
Low, likely
20°−7°–33°1°
Wind
4 mph7 km/h, gusts 12 mph20 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 43°6°, low 29°−2°. Rain 0.05 in1.3 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 36°2°
  Dry
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
40°4°–48°9°
Low, likely
27°−3°–32°0°
Wind
5 mph8 km/h, gusts 29 mph46 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 54°, low 30°.
Tomorrow
Dry, high 58°, low 32°, warming up.
Monday
Dry, high 58°, low 35°.
Rest of week
Highs 40–51°; chance of precipitation on Tuesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (MSO) (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

Bitterroot River near Darby

4.1 mi

Below flood stage

Level: 1.9 ft
Flow: 311 cfs

Forecast peak 2.1 ft Sun 12 AM

Reading from Sat 2:15 PM · NWS gauge page

West Fork Bitterroot River near Conner

21 mi

Level: 1.1 ft
Flow: 57 cfs

Reading from Sat 2:15 PM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 29 min; Losing 3 min 3 s a day; shortest Dec 21, 1 h 50 min less
Golden hour: 5:52–6:53 PM; Morning 7:47–8:48 AM
Blue hour: 6:53–7:05 PM; Morning 7:35–7:47 AM; first light 7:35 AM

Stars tonight? Fair

Mostly clear 12–6 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:21 AM · rises 5:35 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Darby. The highest point on the skyline is about 9,800 ft, 11 mi away.Skyline from USGS elevation data, heights drawn up to 2.5× taller. Sky, sun and moon as they are now.