Observed 9:35 AM MDT at KHVR

Rocky Boy West, MT weather

Sunny and 30°−1°, 11°6° colder than a typical Oct 24, freeze watch tonight, low 26°−3°.

Mostly agree

Now 30°−1°

Sunny · Feels like 21°−6°

Feels like: 21°−6°; Wind chill from 12 mph19 km/h wind · air 30°−1°
Wind: 12 mph19 km/h; From the south-southwest. Up to 12 mph19 km/h through 10 PM
Dew point: 27°−3°; Dry, static shocks likely
UV index: 1Low; Moderate 12–4 PM · peak 3
Air quality: 1Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.34 inHg1027 hPa; Falling slowly · −0.04 inHg−1.3 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 43°6° today at 2 PM
Hard freeze tonight 9 PM–noon (low 22°−6°)
Low 22°−6° tomorrow at 8 AM
Above 30°−1° tomorrow by 11 AM
Hard freeze tomorrow night from 9 PM (low 25°−4°)

This morningUp to 35°2° by 11 AM · freezing, low 31°−1° · Clear
This afternoonUp to 43°6° by 2 PM · Partly cloudy
TonightDown to 24°−4° by 5 AM · freezing, low 24°−4° · Partly cloudy
Tomorrow morningUp to 32°0° by 11 AM · freezing, low 22°−6° · Clear
Tomorrow afternoonUp to 43°6° by 5 PM · Partly cloudy
Tomorrow nightDown to 26°−3° by 5 AM · freezing, low 26°−3° · Partly cloudy
Monday morningNear 27°−3° · freezing, low 25°−4° · Partly 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 10a	Sunny	31°−1° (likely 29°−2° to 33°1°)	28°−2°	0%	3 mph5 km/h from SSW, gusts 12 mph19 km/h	93%	15%	1
Sat 11a	Sunny	35°2° (likely 32°0° to 36°2°)	35°2°	0%	2 mph3 km/h from SSW, gusts 10 mph16 km/h	85%	5%	2
Sat 12p	Sunny	38°3° (likely 35°2° to 39°4°)	38°3°	0%	2 mph3 km/h from SW, gusts 10 mph16 km/h	80%	3%	3
Sat 1p	Mostly sunny	40°4° (likely 38°3° to 41°5°)	40°4°	0%	1 mph2 km/h from SSW, gusts 10 mph16 km/h	70%	42%	3
Sat 2p	Mostly sunny	43°6° (likely 40°4° to 43°6°)	43°6°	0%	1 mph2 km/h from SSW, gusts 8 mph12 km/h	65%	42%	3
Sat 3p	Mostly sunny	41°5° (likely 41°5° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 5 mph8 km/h	60%	36%	3
Sat 4p	Sunny	42°6° (likely 40°4° to 45°7°)	42°6°	0%	1 mph2 km/h from ESE, gusts 6 mph9 km/h	57%	10%	2
Sat 5p	Sunny	43°6° (likely 38°3° to 44°7°)	43°6°	0%	2 mph3 km/h from ENE, gusts 7 mph12 km/h	58%	37%	1
Sat 6p	Clear	40°4° (likely 36°2° to 40°4°)	38°3°	0%	3 mph5 km/h from NE, gusts 8 mph13 km/h	66%	5%	0
Sat 7p	Clear	36°2° (likely 34°1° to 36°2°)	32°0°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	76%	42%	0
Sat 8p	Mostly clear	34°1° (likely 33°1° to 34°1°)	30°−1°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	82%	52%	0
Sat 9p	Mostly cloudy	31°−1° (likely 31°−1° to 34°1°)	26°−3°	0%	5 mph8 km/h from NE, gusts 7 mph12 km/h	84%	63%	0
Sat 10p	Mostly clear	30°−1° (likely 30°−1° to 34°1°)	25°−4°	0%	5 mph8 km/h from NE, gusts 8 mph14 km/h	86%	60%	0
Sat 11p	Partly cloudy	29°−2° (likely 29°−2° to 34°1°)	24°−4°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	88%	39%	0
Sun 12a	Cloudy	29°−2° (likely 29°−2° to 33°1°)	24°−4°	0%	5 mph8 km/h from NNE, gusts 10 mph15 km/h	89%	68%	0
Sun 1a	Partly cloudy	28°−2° (likely 28°−2° to 33°1°)	23°−5°	0%	5 mph8 km/h from NNE, gusts 10 mph16 km/h	89%	48%	0
Sun 2a	Cloudy	27°−3° (likely 27°−3° to 33°1°)	22°−6°	0%	5 mph8 km/h from NE, gusts 11 mph18 km/h	91%	61%	0
Sun 3a	Partly cloudy	27°−3° (likely 27°−3° to 33°1°)	22°−6°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	91%	41%	0
Sun 4a	Clear	26°−3° (likely 26°−3° to 33°1°)	20°−7°	0%	5 mph8 km/h from ENE, gusts 12 mph19 km/h	93%	17%	0
Sun 5a	Clear	24°−4° (likely 24°−4° to 32°0°)	18°−8°	0%	5 mph8 km/h from E, gusts 11 mph17 km/h	96%	9%	0
Sun 6a	Clear	24°−4° (likely 24°−4° to 32°0°)	18°−8°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	97%	8%	0
Sun 7a	Clear	23°−5° (likely 23°−5° to 32°0°)	17°−8°	0%	5 mph8 km/h from E, gusts 10 mph15 km/h	97%	7%	0
Sun 8a	Sunny	22°−6° (likely 22°−6° to 32°0°)	16°−9°	0%	5 mph8 km/h from E, gusts 10 mph16 km/h	99%	4%	0
Sun 9a	Sunny	24°−4° (likely 24°−4° to 32°0°)	18°−8°	0%	5 mph8 km/h from ENE, gusts 11 mph17 km/h	96%	39%	0
Sun 10a	Sunny	29°−2° (likely 29°−2° to 35°2°)	24°−4°	0%	5 mph8 km/h from ENE, gusts 6 mph10 km/h	92%	41%	1
Sun 11a	Sunny	32°0° (likely 32°0° to 36°2°)	27°−3°	0%	5 mph8 km/h from ENE, gusts 6 mph10 km/h	86%	41%	2
Sun 12p	Sunny	35°2° (likely 35°2° to 39°4°)	31°−1°	0%	5 mph8 km/h from E, gusts 5 mph7 km/h	82%	42%	3
Sun 1p	Sunny	38°3° (likely 38°3° to 41°5°)	34°1°	0%	5 mph8 km/h from E, gusts 4 mph7 km/h	72%	29%	3
Sun 2p	Sunny	40°4° (likely 40°4° to 43°6°)	37°3°	0%	5 mph8 km/h from E, gusts 4 mph6 km/h	67%	19%	3
Sun 3p	Mostly sunny	42°6° (likely 42°6° to 44°7°)	39°4°	0%	5 mph8 km/h from E, gusts 4 mph7 km/h	63%	26%	3
Sun 4p	Mostly sunny	42°6° (likely 42°6° to 44°7°)	39°4°	0%	5 mph8 km/h from E, gusts 4 mph7 km/h	59%	23%	2
Sun 5p	Sunny	43°6° (likely 42°6° to 43°6°)	40°4°	0%	5 mph8 km/h from E, gusts 4 mph6 km/h	60%	18%	1
Sun 6p	Partly cloudy	40°4° (likely 39°4° to 41°5°)	37°3°	0%	5 mph8 km/h from E, gusts 5 mph9 km/h	67%	35%	0
Sun 7p	Partly cloudy	37°3° (likely 36°2° to 38°3°)	33°1°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	76%	46%	0
Sun 8p	Partly cloudy	34°1° (likely 33°1° to 37°3°)	30°−1°	0%	5 mph8 km/h from E, gusts 5 mph9 km/h	80%	50%	0
Sun 9p	Partly cloudy	32°0° (likely 31°−1° to 36°2°)	26°−3°	0%	6 mph10 km/h from E, gusts 6 mph10 km/h	80%	50%	0
Sun 10p	Partly cloudy	31°−1° (likely 31°−1° to 36°2°)	25°−4°	0%	6 mph10 km/h from E, gusts 8 mph13 km/h	81%	66%	0
Sun 11p	Partly cloudy	30°−1° (likely 30°−1° to 36°2°)	24°−4°	0%	6 mph10 km/h from E, gusts 8 mph13 km/h	82%	72%	0
Mon 12a	Partly cloudy	30°−1° (likely 30°−1° to 36°2°)	25°−4°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	83%	75%	0
Mon 1a	Partly cloudy	29°−2° (likely 28°−2° to 35°2°)	24°−4°	0%	5 mph8 km/h from E, gusts 6 mph9 km/h	84%	73%	0
Mon 2a	Cloudy	29°−2° (likely 28°−2° to 35°2°)	24°−4°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	85%	67%	0
Mon 3a	Mostly clear	28°−2° (likely 27°−3° to 34°1°)	24°−4°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	87%	58%	0
Mon 4a	Mostly clear	27°−3° (likely 27°−3° to 33°1°)	23°−5°	0%	3 mph5 km/h from E, gusts 4 mph6 km/h	90%	54%	0
Mon 5a	Partly cloudy	26°−3° (likely 26°−3° to 33°1°)	22°−6°	0%	3 mph5 km/h from E, gusts 3 mph5 km/h	94%	49%	0
Mon 6a	Partly cloudy	25°−4° (likely 25°−4° to 33°1°)	25°−4°	0%	2 mph3 km/h from E, gusts 2 mph4 km/h	97%	58%	0
Mon 7a	Partly cloudy	25°−4° (likely 25°−4° to 32°0°)	25°−4°	0%	2 mph3 km/h from E, gusts 2 mph3 km/h	99%	49%	0
Mon 8a	Partly sunny	26°−3° (likely 25°−4° to 32°0°)	26°−3°	0%	2 mph3 km/h from E, gusts 2 mph3 km/h	100%	31%	0
Mon 9a	Sunny	28°−2° (likely 27°−3° to 35°2°)	28°−2°	0%	2 mph3 km/h from ESE, gusts 2 mph3 km/h	99%	22%	0

Days ahead

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

Today, Oct 24. Cloudy. High 43°6°, low 22°−6°. Typical 54°12° / 29°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 24°−4°
  Dry
Official NWS forecast
Today: Areas of fog before 11am. Sunny, with a high near 43. South wind 0 to 3 mph.
Tonight: Partly cloudy, with a low around 22. Northeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
41°5°–45°7°
Low, likely
22°−6°–27°−3°
Typical high / low
54°12° / 29°−2°
Wind
10 mph17 km/h, gusts 19 mph31 km/h
UV peak
3
Tomorrow, Oct 25. Partly sunny. High 43°6°, low 25°−4°. Typical 54°12° / 28°−2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 22°−6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 26°−3°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 43. East wind around 5 mph.
Night: Partly cloudy, with a low around 25. East wind around 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
43°6°–44°7°
Low, likely
25°−4°–32°0°
Typical high / low
54°12° / 28°−2°
Wind
12 mph20 km/h
UV peak
3
Monday, Oct 26. Partly sunny. High 47°8°, low 28°−2°. Typical 53°12° / 28°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 26°−3°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 40°5°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 47. East southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 28. East southeast wind 1 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
47°8°–51°11°
Low, likely
25°−4°–31°−1°
Typical high / low
53°12° / 28°−2°
Wind
7 mph10 km/h, gusts 14 mph23 km/h
UV peak
3
Tuesday, Oct 27. Mostly cloudy. High 46°8°, low 28°−2°. Typical 52°11° / 28°−2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 48°9°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 44°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 38°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 46. Southwest wind 0 to 5 mph.
Night: A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 28. West wind around 7 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
45°7°–51°11°
Low, likely
28°−2°–35°2°
Typical high / low
52°11° / 28°−2°
Wind
15 mph24 km/h, gusts 28 mph46 km/h
UV peak
3
Wednesday, Oct 28. Snow. High 43°6°, low 23°−5°. Typical 52°11° / 27°−3°. Snow 0.06 in1.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 47°8°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 40°4°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before noon. Partly sunny, with a high near 43. Little or no snow accumulation expected.
Night: A slight chance of snow. Mostly cloudy, with a low around 23.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
43°6°–52°11°
Low, likely
23°−5°–37°3°
Typical high / low
52°11° / 27°−3°
Wind
12 mph20 km/h, gusts 26 mph42 km/h
Thursday, Oct 29. Snow. High 41°5°, low 23°−5°. Typical 51°11° / 27°−3°. Snow < 1 in< 2 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 40°4°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 36°2°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 34°1°
  20% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before noon. Partly sunny, with a high near 41.
Night: A slight chance of snow before 9pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 23.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
36°2°–44°7°
Low, likely
23°−5°–32°0°
Typical high / low
51°11° / 27°−3°
Wind
13 mph20 km/h, gusts 23 mph37 km/h
UV peak
3
Friday, Oct 30. Snow. High 43°6°, low 24°−4°. Typical 51°11° / 26°−3°. Snow 0–1 in0–3 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  30% chance · 0.1 in0.3 cm
2. Afternoon
  noon–6 PM
  Cloudy, 42°5°
  20% chance · 0.01 in0.4 mm
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 33°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before noon. Partly sunny, with a high near 43.
Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 24.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
36°2°–48°9°
Low, likely
24°−4°–36°2°
Typical high / low
51°11° / 26°−3°
Wind
15 mph23 km/h, gusts 22 mph36 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 40°4°, low 30°−1°. Typical 50°10° / 26°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Clear, 36°2°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 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
32°0°–49°9°
Low, likely
24°−4°–38°3°
Typical high / low
50°10° / 26°−3°
Wind
17 mph27 km/h, gusts 30 mph48 km/h
UV peak
3
Sunday, Nov 1. Sunny. High 43°6°, low 29°−2°. Typical 50°10° / 26°−3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 31°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Clear, 40°4°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 34°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°–49°9°
Low, likely
24°−4°–32°0°
Typical high / low
50°10° / 26°−3°
Wind
15 mph23 km/h, gusts 28 mph44 km/h
UV peak
3
Monday, Nov 2. Partly sunny. High 46°8°, low 34°1°. Typical 49°9° / 25°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 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
37°3°–54°12°
Low, likely
28°−2°–40°4°
Typical high / low
49°9° / 25°−4°
Wind
12 mph19 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 43°, low 22°.
Tomorrow
Dry, high 43°, low 25°.
Monday
Dry, high 47°, low 28°, warming up.
Rest of week
Mostly dry, highs 40–46°.

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

Big Sandy Creek (MT) near Havre

17 mi

Below flood stage

Level: 2.4 ft
Flow: 19 cfs

Reading from Sat 7:30 AM · NWS gauge page

Milk River at Fresno Reservoir near Havre

21 mi

Level: 2567 ft

Reading from Sat 8:15 AM · NWS gauge page

Milk River at Havre

23 mi

Below flood stage

Level: 0.3 ft

Reading from Sat 8:15 AM · NWS gauge page

Missouri River at Virgelle

24 mi

Below flood stage

Level: 3.0 ft
Flow: 5,180 cfs

Reading from Sat 8 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: 26°−3°

Overnight low near 26°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 63% less heating than a typical week.

This week 64Typical 175

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 27°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?

Big Sandy · official normals 1991–2020 · records 1921–2026

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

Rocky Boy West weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 20 min; Losing 3 min 22 s a day; shortest Dec 21, 2 h 1 min less
Golden hour: 5:29–6:33 PM; Morning 7:33–8:37 AM
Blue hour: 6:33–6:46 PM; Morning 7:21–7:33 AM; first light 7:21 AM

Stars tonight? Fair

Mostly clear 4–7:22 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:06 AM · rises 5:15 PM
Full moon: Oct 25
New moon: Nov 9

Looking southeast from Rocky Boy West. The highest point on the skyline is about 6,800 ft, 19 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Rocky Boy West, MT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Big Sandy Creek (MT) near Havre

Milk River at Fresno Reservoir near Havre

Milk River at Havre

Missouri River at Virgelle

For your home

Pipes: watch the cold

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon