Model estimate for 8:00 AM MDT (no recent station report)

Dell, MT weather

Overcast and 23°−5°, 11°6° colder than a typical Oct 24.

Mostly agree

Now 23°−5°

Cloudy

Wind: Calm; Light through 8 PM
Dew point: 22°−6°; Dry · up to 31°−1° by 2 PM
Humidity: 96%; Air 23°−5°, dew point 22°−6° · frost likely
UV index: 0Low; Moderate 1–3 PM · peak 3

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze until 2 PM (low 23°−5°)
Above 30°−1° today by noon
High 40°4° today at 5 PM
Hard freeze tonight 9 PM–noon (low 25°−4°)
Below freezing tomorrow night from 1 AM (low 29°−2°)

This morningUp to 28°−2° by 11 AM · freezing, low 23°−5° · Mostly cloudy
This afternoonUp to 40°4° by 5 PM · freezing, low 31°−1° · Clear
TonightDown to 29°−2° by 2 AM · freezing, low 29°−2° · Clear
Tomorrow morningUp to 32°0° by 11 AM · freezing, low 25°−4° · Clear
Tomorrow afternoonUp to 46°8° by 5 PM · Clear
Tomorrow nightDown to 30°−1° by 4 AM · freezing, low 30°−1° · 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 8a	Cloudy	23°−5° (likely 23°−5° to 27°−3°)	23°−5°	0%	2 mph3 km/h from SSE, gusts 2 mph4 km/h	96%	85%	0
Sat 9a	Cloudy	23°−5° (likely 23°−5° to 28°−2°)	19°−7°	0%	3 mph5 km/h from SE, gusts 2 mph4 km/h	97%	89%	0
Sat 10a	Partly sunny	25°−4° (likely 25°−4° to 29°−2°)	20°−7°	0%	3 mph5 km/h from SE, gusts 4 mph6 km/h	97%	68%	1
Sat 11a	Sunny	28°−2° (likely 28°−2° to 31°−1°)	28°−2°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	94%	38%	1
Sat 12p	Sunny	31°−1° (likely 31°−1° to 34°1°)	31°−1°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	89%	31%	2
Sat 1p	Sunny	32°0° (likely 32°0° to 37°3°)	32°0°	0%	2 mph3 km/h from SE, gusts 4 mph6 km/h	88%	24%	3
Sat 2p	Sunny	36°2° (likely 36°2° to 40°4°)	36°2°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	82%	19%	3
Sat 3p	Sunny	39°4° (likely 39°4° to 42°6°)	39°4°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	79%	17%	2
Sat 4p	Sunny	39°4° (likely 39°4° to 44°7°)	39°4°	0%	2 mph3 km/h from SSE, gusts 5 mph9 km/h	76%	11%	1
Sat 5p	Sunny	40°4° (likely 39°4° to 44°7°)	40°4°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	75%	12%	1
Sat 6p	Sunny	39°4° (likely 36°2° to 42°6°)	39°4°	0%	2 mph3 km/h from SE, gusts 4 mph6 km/h	77%	6%	1
Sat 7p	Clear	36°2° (likely 33°1° to 39°4°)	36°2°	0%	2 mph3 km/h from ESE, gusts 4 mph7 km/h	78%	1%	0
Sat 8p	Clear	35°2° (likely 30°−1° to 37°3°)	32°0°	0%	3 mph5 km/h from ESE, gusts 4 mph7 km/h	80%	2%	0
Sat 9p	Clear	32°0° (likely 29°−2° to 36°2°)	27°−3°	0%	5 mph8 km/h from ESE, gusts 4 mph7 km/h	80%	0%	0
Sat 10p	Clear	32°0° (likely 27°−3° to 35°2°)	29°−2°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	78%	0%	0
Sat 11p	Clear	31°−1° (likely 26°−3° to 34°1°)	28°−2°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	78%	0%	0
Sun 12a	Clear	30°−1° (likely 25°−4° to 34°1°)	26°−3°	0%	3 mph5 km/h from ESE, gusts 4 mph7 km/h	79%	1%	0
Sun 1a	Clear	30°−1° (likely 25°−4° to 34°1°)	26°−3°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	78%	0%	0
Sun 2a	Clear	29°−2° (likely 24°−4° to 34°1°)	25°−4°	0%	3 mph5 km/h from ESE, gusts 5 mph8 km/h	79%	0%	0
Sun 3a	Clear	29°−2° (likely 24°−4° to 33°1°)	25°−4°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	79%	0%	0
Sun 4a	Clear	29°−2° (likely 24°−4° to 33°1°)	25°−4°	0%	3 mph5 km/h from E, gusts 4 mph6 km/h	80%	6%	0
Sun 5a	Clear	29°−2° (likely 24°−4° to 33°1°)	25°−4°	0%	3 mph5 km/h from E, gusts 5 mph8 km/h	82%	12%	0
Sun 6a	Clear	27°−3° (likely 23°−5° to 33°1°)	23°−5°	0%	3 mph5 km/h from ESE, gusts 4 mph6 km/h	84%	18%	0
Sun 7a	Clear	26°−3° (likely 23°−5° to 33°1°)	22°−6°	0%	3 mph5 km/h from ESE, gusts 3 mph4 km/h	87%	20%	0
Sun 8a	Sunny	26°−3° (likely 23°−5° to 32°0°)	22°−6°	0%	3 mph5 km/h from ESE, gusts 4 mph7 km/h	89%	20%	0
Sun 9a	Sunny	25°−4° (likely 24°−4° to 33°1°)	25°−4°	0%	2 mph3 km/h from ESE, gusts 4 mph6 km/h	92%	24%	0
Sun 10a	Sunny	30°−1° (likely 29°−2° to 36°2°)	30°−1°	0%	2 mph3 km/h from ESE, gusts 2 mph4 km/h	96%	15%	1
Sun 11a	Sunny	32°0° (likely 32°0° to 39°4°)	32°0°	0%	2 mph3 km/h from ESE, gusts 2 mph4 km/h	93%	10%	2
Sun 12p	Mostly sunny	36°2° (likely 36°2° to 42°6°)	36°2°	0%	2 mph3 km/h from SE, gusts 3 mph4 km/h	88%	9%	3
Sun 1p	Sunny	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	85%	5%	4
Sun 2p	Sunny	42°6° (likely 42°6° to 48°9°)	42°6°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	79%	9%	4
Sun 3p	Mostly sunny	44°7° (likely 44°7° to 49°9°)	42°6°	0%	3 mph5 km/h from SE, gusts 6 mph9 km/h	73%	20%	4
Sun 4p	Mostly sunny	45°7° (likely 45°7° to 50°10°)	44°7°	0%	3 mph5 km/h from SE, gusts 6 mph10 km/h	72%	34%	3
Sun 5p	Mostly sunny	46°8° (likely 44°7° to 50°10°)	45°7°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	73%	44%	2
Sun 6p	Mostly cloudy	42°6° (likely 41°5° to 47°8°)	40°4°	0%	3 mph5 km/h from SE, gusts 8 mph12 km/h	78%	52%	1
Sun 7p	Mostly cloudy	40°4° (likely 37°3° to 43°6°)	38°3°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	80%	59%	0
Sun 8p	Mostly cloudy	37°3° (likely 34°1° to 41°5°)	34°1°	0%	3 mph5 km/h from SE, gusts 6 mph9 km/h	82%	60%	0
Sun 9p	Partly cloudy	34°1° (likely 33°1° to 39°4°)	31°−1°	0%	3 mph5 km/h from SSE, gusts 6 mph10 km/h	83%	68%	0
Sun 10p	Cloudy	33°1° (likely 31°−1° to 37°3°)	30°−1°	0%	3 mph5 km/h from SSE, gusts 6 mph9 km/h	83%	68%	0
Sun 11p	Cloudy	33°1° (likely 28°−2° to 36°2°)	30°−1°	0%	3 mph5 km/h from SSE, gusts 4 mph6 km/h	82%	64%	0
Mon 12a	Partly cloudy	33°1° (likely 25°−4° to 35°2°)	30°−1°	0%	3 mph5 km/h from SSE, gusts 3 mph5 km/h	81%	54%	0
Mon 1a	Partly cloudy	32°0° (likely 23°−5° to 35°2°)	29°−2°	0%	3 mph5 km/h from SSE, gusts 3 mph5 km/h	81%	59%	0
Mon 2a	Partly cloudy	32°0° (likely 23°−5° to 35°2°)	29°−2°	0%	3 mph5 km/h from SSE, gusts 3 mph5 km/h	80%	68%	0
Mon 3a	Partly cloudy	31°−1° (likely 22°−6° to 34°1°)	25°−4°	0%	6 mph10 km/h from SSE, gusts 3 mph5 km/h	81%	75%	0
Mon 4a	Cloudy	30°−1° (likely 22°−6° to 35°2°)	24°−4°	0%	6 mph10 km/h from SSE, gusts 4 mph6 km/h	82%	80%	0
Mon 5a	Partly cloudy	30°−1° (likely 22°−6° to 35°2°)	24°−4°	0%	6 mph10 km/h from SSE, gusts 5 mph8 km/h	85%	73%	0
Mon 6a	Cloudy	29°−2° (likely 22°−6° to 35°2°)	22°−6°	0%	7 mph11 km/h from SSE, gusts 5 mph7 km/h	87%	83%	0
Mon 7a	Cloudy	29°−2° (likely 16°−9° to 36°2°)	22°−6°	0%	7 mph11 km/h from SSE, gusts 5 mph8 km/h	90%	78%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Fog. High 41°5°, low 24°−4°. Typical 52°11° / 27°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 40°4°
  Dry
3. Evening
  6 PM–midnight
  Clear, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 29°−2°
  Dry
Official NWS forecast
Today: Areas of fog before noon. Sunny, with a high near 41. Southeast wind around 3 mph.
Tonight: Mostly clear. Low around 24, with temperatures rising to around 29 overnight. East southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
40°4°–44°7°
Low, likely
20°−7°–27°−3°
Typical high / low
52°11° / 27°−3°
Wind
8 mph14 km/h, gusts 15 mph25 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 47°8°, low 28°−2°. Typical 52°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 26°−3°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 30°−1°
  Dry
Official NWS forecast
Day: Sunny, with a high near 47. Southeast wind around 3 mph.
Night: Partly cloudy, with a low around 28. South southeast wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–50°10°
Low, likely
23°−5°–32°0°
Typical high / low
52°11° / 26°−3°
Wind
7 mph12 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 46°8°, low 28°−2°. Typical 51°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 49°10°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 40°4°
  50% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 31°−1°
  60% chance · 0.03 in0.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 46. South southeast wind 7 to 15 mph, with gusts as high as 26 mph.
Night: A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then rain and snow likely. Mostly cloudy, with a low around 28. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
46°8°–50°10°
Low, likely
21°−6°–33°1°
Typical high / low
51°11° / 26°−3°
Wind
13 mph20 km/h, gusts 28 mph45 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 41°5°, low 23°−5°. Typical 51°11° / 26°−3°. Snow 0–1 in0–3 cm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Showers, 29°−2°
  60% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Cloudy, 41°5°
  30% chance
3. Evening
  6 PM–midnight
  Mostly clear, 32°0°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 27°−3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before 9am, then a chance of rain and snow. Partly sunny, with a high near 41. South wind 6 to 9 mph, with gusts as high as 18 mph. New snow accumulation of less than half an inch possible.
Night: A slight chance of snow. Mostly cloudy, with a low around 23. South southeast wind around 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
39°4°–42°6°
Low, likely
19°−7°–33°1°
Typical high / low
51°11° / 26°−3°
Wind
7 mph12 km/h, gusts 18 mph29 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 41°5°, low 25°−4°. Typical 50°10° / 25°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 26°−3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 42°6°
  Dry
3. Evening
  6 PM–midnight
  Clear, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 28°−2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 41.
Night: Partly cloudy, with a low around 25.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
39°4°–43°6°
Low, likely
21°−6°–30°−1°
Typical high / low
50°10° / 25°−4°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 43°6°, low 26°−3°. Typical 50°10° / 25°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 29°−2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Fog, 39°4°
  Dry
4. Overnight
  midnight–6 AM
  Snow, 35°2°
  30% chance · 0.3 in0.6 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 43.
Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 26.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–47°8°
Low, likely
21°−6°–33°1°
Typical high / low
50°10° / 25°−4°
Wind
11 mph18 km/h, gusts 24 mph38 km/h
UV peak
3
Friday, Oct 30. Snow. High 45°7°, low 27°−3°. Typical 49°9° / 25°−4°. Snow 0–1 in0–3 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 35°2°
  30% chance · 0.03 in0.6 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 44°7°
  30% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 36°2°
  30% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Snow showers, 30°−1°
  30% chance · 0.1 in0.3 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before noon, then a slight chance of rain and snow. Partly sunny, with a high near 45.
Night: A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 27.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
38°3°–48°9°
Low, likely
23°−5°–37°3°
Typical high / low
49°9° / 25°−4°
Wind
16 mph26 km/h, gusts 35 mph57 km/h
UV peak
3
Saturday, Oct 31. Snow showers. High 36°2°, low 22°−6°. Typical 49°9° / 24°−4°. Snow < 1 in< 2 cm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow showers, 28°−2°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Sunny, 36°2°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 28°−2°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 22°−6°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
34°1°–39°4°
Low, likely
18°−8°–26°−3°
Typical high / low
49°9° / 24°−4°
Wind
10 mph16 km/h, gusts 21 mph34 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 37°3°, low 20°−7°. Typical 48°9° / 24°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 21°−6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 38°3°
  Dry
3. Evening
  6 PM–midnight
  Clear, 31°−1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 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
34°1°–44°7°
Low, likely
9°−13°–27°−3°
Typical high / low
48°9° / 24°−4°
Wind
5 mph8 km/h, gusts 17 mph27 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 40°4°, low 27°−3°. Typical 48°9° / 24°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 33°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
34°1°–51°11°
Low, likely
23°−5°–31°−1°
Typical high / low
48°9° / 24°−4°
Wind
8 mph13 km/h, gusts 23 mph37 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 41°, low 24°.
Tomorrow
Dry, high 47°, low 28°, warming up.
Monday
Dry, high 46°, low 28°.
Rest of week
Highs 36–45°; chance of precipitation on Tuesday.

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

Red Rock River below Lima Reservoir nr Monida

17 mi

Level: 1.3 ft
Flow: under 1 cfs

Reading from Sat 6:30 AM · NWS gauge page

Red Rock River at Lima Reservoir near Lima

17 mi

Level: 6567 ft

Reading from Sat 6:30 AM · NWS gauge page

Beaverhead River at Clark Canyon Dam near Dillon

21 mi

Below flood stage

Level: 5518 ft

Reading from Sat 6 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 67% less heating than a typical week.

This week 62Typical 188

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 47
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 25 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 22°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Lima · official normals 1991–2020 · records 1898–2026

Oct 24, today vs a typical year

Today’s expected high is 11°6° colder than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Dell weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 33 min; Losing 2 min 53 s a day; shortest Dec 21, 1 h 45 min less
Golden hour: 5:50–6:49 PM; Morning 7:39–8:39 AM
Blue hour: 6:49–7:00 PM; Morning 7:28–7:39 AM; first light 7:28 AM

Stars tonight? Fair

Clear 7 PM–7:29 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:14 AM · rises 5:31 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Dell. The highest point on the skyline is about 9,600 ft, 4 mi away.Skyline from USGS elevation data, heights drawn up to 2× taller. Sky, sun and moon as they are now.