Observed 10:53 AM MDT at KLVM

Duncan Ranch Colony, MT weather

Sunny and 34°1°, 9°5° colder than a typical Oct 25, freeze watch tonight, low 23°−5°.

Mostly agree

Now 34°1°

Sunny

Wind: Calm; Up to 14 mph23 km/h through 11 PM
Dew point: 29°−2°; Dry, static shocks likely
UV index: 2Low; Moderate 12–4 PM · peak 4
Pressure: 30.32 inHg1027 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Hard freeze tonight 8 PM–11 AM (low 22°−6°)
Below 30°−1° tonight after 9 PM
Below freezing tomorrow night 9 PM–9 AM (low 29°−2°)
Rain tomorrow night from midnight (50%, 0.22 in5.6 mm)
Gusts to 34 mph55 km/h Tuesday from 7 AM

This afternoonUp to 44°7° by 2 PM · Clear
TonightDown to 23°−5° by 5 AM · freezing, low 23°−5° · Clear
Tomorrow morningUp to 35°2° by 11 AM · freezing, low 22°−6° · Partly cloudy
Tomorrow afternoonUp to 44°7° by 3 PM · Partly cloudy
Tomorrow nightDown to 29°−2° by 4 AM · Rain midnight–6 AM (50%) · freezing, low 29°−2°
Tuesday morningUp to 36°2° by 10 AM · Rain all morning (50%) · freezing, low 29°−2° · gusts to 34 mph55 km/h

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sun 11a	Sunny	38°3° (likely 36°2° to 39°4°)	32°0°	0%	8 mph13 km/h from ENE, gusts 9 mph14 km/h	62%	0%	2
Sun 12p	Sunny	41°5° (likely 39°4° to 43°6°)	36°2°	0%	9 mph14 km/h from E, gusts 10 mph17 km/h	55%	0%	3
Sun 1p	Sunny	43°6° (likely 41°5° to 45°7°)	37°3°	0%	12 mph19 km/h from E, gusts 12 mph20 km/h	50%	1%	4
Sun 2p	Sunny	44°7° (likely 42°6° to 46°8°)	37°3°	0%	13 mph21 km/h from ESE, gusts 13 mph22 km/h	47%	10%	4
Sun 3p	Sunny	44°7° (likely 43°6° to 46°8°)	37°3°	0%	14 mph23 km/h from ESE, gusts 14 mph23 km/h	45%	7%	3
Sun 4p	Sunny	44°7° (likely 43°6° to 45°7°)	37°3°	0%	14 mph23 km/h from ESE, gusts 15 mph24 km/h	45%	1%	2
Sun 5p	Sunny	43°6° (likely 41°5° to 43°6°)	36°2°	0%	14 mph23 km/h from E, gusts 15 mph25 km/h	47%	0%	1
Sun 6p	Clear	39°4° (likely 38°3° to 40°4°)	31°−1°	0%	13 mph21 km/h from E, gusts 15 mph24 km/h	60%	0%	0
Sun 7p	Clear	33°1° (likely 33°1° to 36°2°)	24°−4°	0%	10 mph16 km/h from E, gusts 12 mph20 km/h	71%	0%	0
Sun 8p	Clear	31°−1° (likely 31°−1° to 34°1°)	23°−5°	0%	8 mph13 km/h from E, gusts 10 mph15 km/h	80%	0%	0
Sun 9p	Clear	29°−2° (likely 29°−2° to 33°1°)	22°−6°	0%	6 mph10 km/h from E, gusts 6 mph10 km/h	82%	0%	0
Sun 10p	Clear	28°−2° (likely 28°−2° to 32°0°)	22°−6°	0%	5 mph8 km/h from E, gusts 3 mph5 km/h	83%	1%	0
Sun 11p	Clear	26°−3° (likely 26°−3° to 32°0°)	21°−6°	0%	5 mph8 km/h from E, gusts 2 mph4 km/h	85%	0%	0
Mon 12a	Clear	25°−4° (likely 25°−4° to 32°0°)	20°−7°	0%	5 mph8 km/h from ENE, gusts 3 mph5 km/h	85%	0%	0
Mon 1a	Clear	24°−4° (likely 24°−4° to 31°−1°)	19°−7°	0%	5 mph8 km/h from ENE, gusts 3 mph5 km/h	88%	1%	0
Mon 2a	Clear	24°−4° (likely 24°−4° to 31°−1°)	18°−8°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	89%	0%	0
Mon 3a	Clear	24°−4° (likely 24°−4° to 31°−1°)	18°−8°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	90%	0%	0
Mon 4a	Clear	24°−4° (likely 24°−4° to 30°−1°)	19°−7°	0%	3 mph5 km/h from NE, gusts 4 mph6 km/h	88%	1%	0
Mon 5a	Clear	23°−5° (likely 23°−5° to 29°−2°)	19°−7°	0%	3 mph5 km/h from NE, gusts 3 mph5 km/h	93%	1%	0
Mon 6a	Clear	23°−5° (likely 23°−5° to 29°−2°)	23°−5°	0%	2 mph3 km/h from E, gusts 2 mph3 km/h	94%	2%	0
Mon 7a	Clear	22°−6° (likely 22°−6° to 29°−2°)	22°−6°	0%	2 mph3 km/h from E, gusts 2 mph3 km/h	94%	7%	0
Mon 8a	Sunny	23°−5° (likely 22°−6° to 29°−2°)	23°−5°	0%	2 mph3 km/h from E, gusts 2 mph3 km/h	94%	25%	0
Mon 9a	Sunny	25°−4° (likely 23°−5° to 30°−1°)	21°−6°	0%	3 mph5 km/h from ESE, gusts 2 mph2 km/h	91%	39%	0
Mon 10a	Sunny	31°−1° (likely 30°−1° to 33°1°)	28°−2°	0%	3 mph5 km/h from ESE, gusts 2 mph4 km/h	80%	40%	1
Mon 11a	Sunny	35°2° (likely 34°1° to 37°3°)	32°0°	0%	3 mph5 km/h from ESE, gusts 6 mph9 km/h	72%	40%	2
Mon 12p	Sunny	38°3° (likely 37°3° to 40°4°)	34°1°	0%	6 mph10 km/h from ESE, gusts 6 mph9 km/h	66%	40%	3
Mon 1p	Sunny	40°4° (likely 39°4° to 43°6°)	36°2°	0%	6 mph10 km/h from ESE, gusts 6 mph10 km/h	61%	42%	4
Mon 2p	Partly sunny	42°6° (likely 41°5° to 45°7°)	39°4°	0%	6 mph10 km/h from ESE, gusts 9 mph14 km/h	58%	34%	4
Mon 3p	Cloudy	44°7° (likely 43°6° to 46°8°)	39°4°	0%	9 mph14 km/h from ESE, gusts 10 mph17 km/h	56%	63%	3
Mon 4p	Cloudy	44°7° (likely 43°6° to 47°8°)	39°4°	0%	9 mph14 km/h from ESE, gusts 11 mph18 km/h	56%	68%	2
Mon 5p	Partly sunny	44°7° (likely 42°6° to 46°8°)	39°4°	0%	9 mph14 km/h from ESE, gusts 11 mph18 km/h	57%	35%	1
Mon 6p	Showers	40°4° (likely 40°4° to 42°6°)	35°2°	20%	8 mph13 km/h from ESE, gusts 10 mph16 km/h	68%	57%	0
Mon 7p	Showers	37°3° (likely 36°2° to 39°4°)	31°−1°	20%	8 mph13 km/h from ESE, gusts 8 mph12 km/h	80%	52%	0
Mon 8p	Showers	35°2° (likely 33°1° to 37°3°)	28°−2°	20%	8 mph13 km/h from ESE, gusts 5 mph9 km/h	90%	55%	0
Mon 9p	Cloudy	31°−1° (likely 31°−1° to 36°2°)	26°−3°	20%	5 mph8 km/h from ESE, gusts 5 mph8 km/h	94%	64%	0
Mon 10p	Cloudy	30°−1° (likely 30°−1° to 35°2°)	25°−4°	20%	5 mph8 km/h from ESE, gusts 5 mph8 km/h	97%	83%	0
Mon 11p	Partly cloudy	30°−1° (likely 30°−1° to 35°2°)	25°−4°	20%	5 mph8 km/h from ESE, gusts 7 mph11 km/h	100%	77%	0
Tue 12a	Cloudy	30°−1° (likely 30°−1° to 35°2°)	24°−4°	50%, 0.02 in0.5 mm	6 mph10 km/h from SE, gusts 12 mph19 km/h	100%	93%	0
Tue 1a	Cloudy	30°−1° (likely 30°−1° to 36°2°)	24°−4°	50%, 0.02 in0.5 mm	6 mph10 km/h from SE, gusts 6 mph10 km/h	100%	98%	0
Tue 2a	Cloudy	30°−1° (likely 30°−1° to 35°2°)	24°−4°	50%, 0.02 in0.5 mm	6 mph10 km/h from SE, gusts 6 mph10 km/h	100%	99%	0
Tue 3a	Cloudy	30°−1° (likely 30°−1° to 35°2°)	24°−4°	50%, 0.02 in0.5 mm	6 mph10 km/h from W, gusts 8 mph13 km/h	100%	98%	0
Tue 4a	Snow	29°−2° (likely 29°−2° to 35°2°)	23°−5°	50%, 0.02 in0.5 mm	6 mph10 km/h from W, gusts 9 mph14 km/h	99%	83%	0
Tue 5a	Cloudy	29°−2° (likely 29°−2° to 38°3°)	23°−5°	50%, 0.02 in0.5 mm	6 mph10 km/h from W, gusts 11 mph18 km/h	98%	92%	0
Tue 6a	Snow	29°−2° (likely 29°−2° to 39°4°)	18°−8°	50%, 0.02 in0.5 mm	15 mph24 km/h from WSW, gusts 20 mph32 km/h	96%	84%	0
Tue 7a	Snow	30°−1° (likely 30°−1° to 40°4°)	19°−7°	50%, 0.02 in0.5 mm	15 mph24 km/h from WSW, gusts 27 mph44 km/h	96%	85%	0
Tue 8a	Snow	31°−1° (likely 31°−1° to 40°4°)	21°−6°	50%, 0.02 in0.5 mm	15 mph24 km/h from WSW, gusts 30 mph48 km/h	95%	75%	0
Tue 9a	Snow	33°1° (likely 33°1° to 40°4°)	19°−7°	50%, 0.02 in0.5 mm	29 mph47 km/h from W, gusts 30 mph48 km/h	91%	60%	0
Tue 10a	Snow	36°2° (likely 36°2° to 42°6°)	23°−5°	50%, 0.02 in0.5 mm	29 mph47 km/h from W, gusts 34 mph55 km/h	83%	56%	0

Days ahead

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

Today, Oct 25. Sunny. High 44°7°, low 21°−6°. Typical 53°12° / 26°−3°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 44°7°
  Dry
2. Evening
  6 PM–midnight
  Clear, 31°−1°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 23°−5°
  Dry
Official NWS forecast
Today: Sunny, with a high near 44. East wind 8 to 14 mph.
Tonight: Patchy fog after 3am. Mostly clear. Low around 21, with temperatures rising to around 23 overnight. East northeast wind 3 to 13 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–46°8°
Low, likely
21°−6°–30°−1°
Typical high / low
53°12° / 26°−3°
Wind
12 mph19 km/h, gusts 18 mph29 km/h
UV peak
4
Tomorrow, Oct 26. Cloudy. High 44°7°, low 28°−2°. Typical 53°12° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Snow, 29°−2°
  50% chance · 0.12 in3 mm
Official NWS forecast
Day: Patchy fog before 9am. Partly sunny, with a high near 44. East southeast wind 2 to 9 mph.
Night: A slight chance of rain showers before midnight, then a chance of snow showers. Mostly cloudy, with a low around 28. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–47°8°
Low, likely
22°−6°–29°−2°
Typical high / low
53°12° / 26°−3°
Wind
9 mph15 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 45°7°, low 25°−4°. Typical 52°11° / 26°−3°. Snow 0.08 in2 mm, 50% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Snow, 31°−1°
  50% chance · 0.1 in2.5 mm
2. Afternoon
  noon–6 PM
  Sunny, 48°9°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 40°4°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow showers before noon. Partly sunny. High near 45, with temperatures falling to around 43 in the afternoon. West wind 15 to 40 mph, with gusts as high as 49 mph. Chance of precipitation is 50%.
Night: Partly cloudy. Low around 25, with temperatures rising to around 27 overnight. West wind 14 to 24 mph, with gusts as high as 41 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
45°7°–49°9°
Low, likely
25°−4°–35°2°
Typical high / low
52°11° / 26°−3°
Wind
27 mph44 km/h, gusts 44 mph71 km/h
UV peak
4
Wednesday, Oct 28. Mostly sunny. High 50°10°, low 24°−4°. Typical 52°11° / 26°−3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 51°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 40°5°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 30°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny. High near 50, with temperatures falling to around 46 in the afternoon. West wind 6 to 13 mph.
Night: Mostly clear, with a low around 24. South southeast wind around 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
49°9°–52°11°
Low, likely
24°−4°–33°1°
Typical high / low
52°11° / 26°−3°
Wind
14 mph23 km/h, gusts 26 mph41 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 48°9°, low 24°−4°. Typical 51°11° / 25°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 29°−2°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 31°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny. High near 48, with temperatures falling to around 44 in the afternoon. South southwest wind 2 to 6 mph.
Night: A chance of rain showers before 9pm, then a chance of rain and snow showers. Mostly cloudy. Low around 24, with temperatures rising to around 27 overnight. East northeast wind around 7 mph. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–51°11°
Low, likely
24°−4°–31°−1°
Typical high / low
51°11° / 25°−4°
Wind
10 mph16 km/h, gusts 15 mph25 km/h
UV peak
3
Friday, Oct 30. Snow. High 42°6°, low 23°−5°. Typical 51°11° / 25°−4°. Snow < 1 in< 2 cm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 31°−1°
  20% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 42°5°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 37°3°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow showers before noon, then a slight chance of rain and snow showers. Partly sunny. High near 42, with temperatures falling to around 40 in the afternoon. South wind 3 to 7 mph. Chance of precipitation is 40%.
Night: A chance of rain and snow showers. Mostly cloudy. Low around 23, with temperatures rising to around 26 overnight. South southeast wind around 6 mph. Chance of precipitation is 40%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
38°3°–47°8°
Low, likely
23°−5°–35°2°
Typical high / low
51°11° / 25°−4°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
3
Saturday, Oct 31. Snow. High 44°7°, low 24°−4°. Typical 51°11° / 24°−4°. Snow 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow showers before noon. Mostly sunny. High near 44, with temperatures falling to around 41 in the afternoon. West wind 3 to 8 mph. Chance of precipitation is 20%.
Night: A chance of rain showers before midnight, then a slight chance of snow showers. Partly cloudy. Low around 24, with temperatures rising to around 28 overnight. West wind 6 to 10 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
42°6°–53°12°
Low, likely
24°−4°–36°2°
Typical high / low
51°11° / 24°−4°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 47°8°, low 32°0°. Typical 50°10° / 24°−4°. Rain 0.05 in1.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 35°1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 42°6°
  20% chance · 0.05 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 40°5°
  30% chance · 0.11 in2.7 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
41°5°–55°13°
Low, likely
22°−6°–39°4°
Typical high / low
50°10° / 24°−4°
Wind
18 mph28 km/h, gusts 34 mph55 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 47°8°, low 36°2°. Typical 50°10° / 24°−4°. Rain 0.25 in6.4 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 40°4°
  30% chance · 0.4 in1.1 cm
2. Afternoon
  noon–6 PM
  Cloudy, 45°7°
  30% chance · 0.4 in0.9 cm
3. Evening
  6 PM–midnight
  Clear, 40°5°
  30% chance
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  20% chance · 0.02 in0.6 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
44°7°–52°11°
Low, likely
34°1°–39°4°
Typical high / low
50°10° / 24°−4°
Wind
29 mph47 km/h, gusts 48 mph77 km/h
UV peak
2
Tuesday, Nov 3. Cloudy. High 46°8°, low 35°2°. Typical 49°9° / 24°−4°. Rain 0.1 in2.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  20% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  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°–51°11°
Low, likely
34°1°–35°2°
Typical high / low
49°9° / 24°−4°
Wind
26 mph41 km/h, gusts 42 mph68 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 44°, low 21°.
Tomorrow
Dry, high 44°, low 28°.
Tuesday
53% chance of snow, high 45°, low 25°.
Rest of week
Mostly dry, highs 42–50°.

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

Musselshell River near Harlowton

8.9 mi

Below flood stage

Level: 2.9 ft

Reading from Sun 10 AM · NWS gauge page

Musselshell River near Martinsdale

11 mi

Level: 1.4 ft

Reading from Sun 10:15 AM · NWS gauge page

Sweet Grass Creek at Tronrud Bridge near Melville

20 mi

Level: 0.9 ft
Flow: 7 cfs

Reading from Sun 10 AM · NWS gauge page

For your home

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

Pipes: watch the cold

Tonight’s low: 23°−5°

Overnight low near 23°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 66% less heating than a typical week.

This week 63Typical 185

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 20 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 29°F).

Open the windows?

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

Is this typical?

Harlowton · official normals 1991–2020 · records 1948–2026

Oct 25, today vs a typical year

Today’s expected high is 9°5° colder than typical.

Last 7 days vs normal

—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24
—SunOct 25

Duncan Ranch Colony weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 24 min; Losing 3 min 8 s a day; shortest Dec 21, 1 h 49 min less
Golden hour: 5:33–6:34 PM; Morning 7:32–8:34 AM
Blue hour: 6:34–6:46 PM; Morning 7:20–7:32 AM; first light 7:20 AM

Stars tonight? Fair

Clear 6:46 PM–7:22 AM, but the moon is 100% lit and up.

Moon

Full moon

100% lit · growing

Today: sets 7:22 AM · rises 5:40 PM
Full moon: Today, 10:12 PM
New moon: Nov 9

Looking southwest from Duncan Ranch Colony. The highest point on the skyline is about 11,000 ft, 31 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.