Observed 8:05 AM MDT at KBZN

Logan, MT weather

Foggy and 27°−3°, 12°7° colder than a typical Oct 24, freeze watch tonight, low 24°−4°.

Forecasts agree

Now 27°−3°

Fog · Feels like 23°−5°

Wind: 3 mph5 km/h; From the southwest. Light through 8 PM
Visibility (notable): 0.2 mi0.3 km; Dense fog
Dew point: 27°−3°; Dry · up to 35°2° by 2 PM (comfortable)
Humidity: 100%; Air 27°−3°, dew point 27°−3° · frost likely
UV index: 0Low; Moderate 12–5 PM · peak 4
Pressure: 30.38 inHg1029 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

22°12° cooler than this time yesterday (49°9° then, 27°−3° now)

Good hours for

Hard freeze until 11 AM (low 27°−3°)
Fog until noon
Hard freeze tonight 8 PM–noon (low 20°−7°)
Below 30°−1° tonight after 9 PM
Hard freeze tomorrow night from 8 PM (low 21°−6°)

This morningUp to 33°1° by 11 AM · Partly cloudy · freezing, low 27°−3°
This afternoonUp to 41°5° by 4 PM · Clear
TonightDown to 22°−6° by 5 AM · freezing, low 22°−6° · Clear
Tomorrow morningUp to 30°−1° by 11 AM · freezing, low 20°−7° · Clear
Tomorrow afternoonUp to 42°6° by 5 PM · Clear
Tomorrow nightDown to 21°−6° by 5 AM · freezing, low 21°−6° · 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 8a	Fog	27°−3° (likely 26°−3° to 31°−1°)	27°−3°	0%	1 mph2 km/h from ESE, gusts 5 mph7 km/h	100%	50%	0
Sat 9a	Fog	28°−2° (likely 27°−3° to 31°−1°)	28°−2°	0%	2 mph3 km/h from ESE, gusts 5 mph7 km/h	100%	51%	0
Sat 10a	Fog	31°−1° (likely 29°−2° to 32°0°)	31°−1°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	100%	46%	1
Sat 11a	Fog	33°1° (likely 31°−1° to 35°2°)	33°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	38%	2
Sat 12p	Sunny	35°2° (likely 34°1° to 37°3°)	35°2°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	12%	3
Sat 1p	Sunny	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 5 mph7 km/h	89%	6%	4
Sat 2p	Sunny	39°4° (likely 39°4° to 42°6°)	39°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	3%	4
Sat 3p	Sunny	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	78%	2%	3
Sat 4p	Sunny	41°5° (likely 41°5° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 4 mph6 km/h	75%	0%	3
Sat 5p	Sunny	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 5 mph7 km/h	75%	1%	2
Sat 6p	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	79%	2%	1
Sat 7p	Clear	35°2° (likely 35°2° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	90%	5%	0
Sat 8p	Clear	30°−1° (likely 30°−1° to 38°3°)	30°−1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	3%	0
Sat 9p	Clear	28°−2° (likely 28°−2° to 37°3°)	28°−2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	98%	3%	0
Sat 10p	Clear	27°−3° (likely 27°−3° to 36°2°)	27°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	4%	0
Sat 11p	Clear	26°−3° (likely 26°−3° to 35°2°)	26°−3°	0%	0 mph0 km/h, gusts 1 mph1 km/h	99%	0%	0
Sun 12a	Clear	25°−4° (likely 25°−4° to 35°2°)	25°−4°	0%	0 mph0 km/h, gusts 1 mph2 km/h	98%	1%	0
Sun 1a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	7%	0
Sun 2a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	98%	11%	0
Sun 3a	Clear	23°−5° (likely 23°−5° to 34°1°)	23°−5°	0%	0 mph0 km/h, gusts 1 mph1 km/h	98%	13%	0
Sun 4a	Clear	23°−5° (likely 23°−5° to 33°1°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	13%	0
Sun 5a	Clear	22°−6° (likely 22°−6° to 32°0°)	22°−6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	12%	0
Sun 6a	Clear	22°−6° (likely 22°−6° to 33°1°)	22°−6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	13%	0
Sun 7a	Clear	22°−6° (likely 22°−6° to 33°1°)	22°−6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	13%	0
Sun 8a	Sunny	20°−7° (likely 20°−7° to 33°1°)	20°−7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	14%	0
Sun 9a	Sunny	23°−5° (likely 23°−5° to 33°1°)	23°−5°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	19%	0
Sun 10a	Partly sunny	28°−2° (likely 28°−2° to 38°3°)	28°−2°	0%	0 mph0 km/h, gusts 8 mph12 km/h	100%	24%	1
Sun 11a	Sunny	30°−1° (likely 30°−1° to 41°5°)	30°−1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	10%	2
Sun 12p	Sunny	33°1° (likely 33°1° to 43°6°)	33°1°	0%	1 mph2 km/h from NNW, gusts 7 mph11 km/h	95%	1%	3
Sun 1p	Sunny	37°3° (likely 37°3° to 45°7°)	37°3°	0%	1 mph2 km/h from NNW, gusts 7 mph12 km/h	87%	2%	4
Sun 2p	Sunny	40°4° (likely 40°4° to 46°8°)	40°4°	0%	1 mph2 km/h from NNW, gusts 8 mph13 km/h	81%	3%	4
Sun 3p	Sunny	41°5° (likely 41°5° to 48°9°)	41°5°	0%	0 mph0 km/h, gusts 8 mph13 km/h	78%	6%	3
Sun 4p	Sunny	41°5° (likely 41°5° to 48°9°)	41°5°	0%	0 mph0 km/h, gusts 9 mph14 km/h	75%	11%	3
Sun 5p	Partly sunny	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	76%	24%	1
Sun 6p	Partly cloudy	40°4° (likely 39°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 11 mph17 km/h	80%	22%	1
Sun 7p	Partly cloudy	36°2° (likely 35°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 11 mph18 km/h	92%	29%	0
Sun 8p	Clear	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 5 mph9 km/h	98%	41%	0
Sun 9p	Mostly clear	28°−2° (likely 28°−2° to 37°3°)	28°−2°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	100%	45%	0
Sun 10p	Mostly clear	26°−3° (likely 26°−3° to 36°2°)	26°−3°	0%	1 mph2 km/h from E, gusts 4 mph7 km/h	100%	50%	0
Sun 11p	Mostly clear	25°−4° (likely 25°−4° to 35°2°)	25°−4°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	100%	59%	0
Mon 12a	Partly cloudy	25°−4° (likely 25°−4° to 34°1°)	25°−4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	62%	0
Mon 1a	Partly cloudy	24°−4° (likely 24°−4° to 33°1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	58%	0
Mon 2a	Partly cloudy	23°−5° (likely 23°−5° to 32°0°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	56%	0
Mon 3a	Partly cloudy	22°−6° (likely 22°−6° to 32°0°)	22°−6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	62%	0
Mon 4a	Partly cloudy	22°−6° (likely 22°−6° to 32°0°)	22°−6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	62%	0
Mon 5a	Partly cloudy	21°−6° (likely 21°−6° to 31°−1°)	21°−6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	54%	0
Mon 6a	Cloudy	21°−6° (likely 21°−6° to 31°−1°)	21°−6°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	64%	0
Mon 7a	Mostly cloudy	22°−6° (likely 22°−6° to 31°−1°)	22°−6°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	36%	0

Days ahead

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

Today, Oct 24. Cloudy. High 41°5°, low 20°−7°. Typical 53°12° / 26°−3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Fog, 27°−3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Clear, 30°−1°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 22°−6°
  Dry
Official NWS forecast
Today: Areas of fog before noon. Sunny, with a high near 41. East southeast wind around 2 mph.
Tonight: Mostly clear, with a low around 20. Wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
41°5°–44°7°
Low, likely
20°−7°–29°−2°
Typical high / low
53°12° / 26°−3°
Wind
8 mph13 km/h
UV peak
4
Tomorrow, Oct 25. Partly sunny. High 43°6°, low 20°−7°. Typical 52°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 20°−7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 42°6°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 32°0°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 21°−6°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 43. North wind around 1 mph.
Night: Partly cloudy, with a low around 20. Northeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–48°9°
Low, likely
20°−7°–32°0°
Typical high / low
52°11° / 26°−3°
Wind
10 mph15 km/h, gusts 18 mph29 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 48°9°, low 25°−4°. Typical 52°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 43°6°
  20% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 37°3°
  50% chance · 0.14 in3.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 48. North northeast wind around 1 mph.
Night: A chance of rain before 3am, then a chance of snow. Mostly cloudy, with a low around 25. East southeast wind around 2 mph. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
47°8°–51°11°
Low, likely
24°−4°–30°−1°
Typical high / low
52°11° / 26°−3°
Wind
5 mph7 km/h, gusts 10 mph15 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 46°8°, low 23°−5°. Typical 51°11° / 25°−4°. Snow 0.2 in5.1 mm, 60% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 37°3°
  50% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 49°9°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Mostly clear, 40°4°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Partly cloudy, 29°−1°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Snow likely before 9am, then rain likely. Mostly cloudy, with a high near 46. Southwest wind 1 to 5 mph.
Night: A chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 23. Southwest wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
46°8°–50°10°
Low, likely
23°−5°–39°4°
Typical high / low
51°11° / 25°−4°
Wind
18 mph29 km/h, gusts 28 mph45 km/h
UV peak
2
Wednesday, Oct 28. Partly sunny. High 45°7°, low 21°−6°. Typical 51°11° / 25°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°10°
  Dry
3. Evening
  6 PM–midnight
  Clear, 41°5°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 29°−2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 45.
Night: Partly cloudy, with a low around 21.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–51°11°
Low, likely
21°−6°–33°1°
Typical high / low
51°11° / 25°−4°
Wind
9 mph15 km/h, gusts 25 mph40 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 44°7°, low 22°−6°. Typical 50°10° / 24°−4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 29°−2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 40°5°
  Dry
4. Overnight
  midnight–6 AM
  Snow, 35°2°
  20% chance · 0.2 in0.4 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 44.
Night: A slight chance of rain and snow. Mostly cloudy, with a low around 22.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
43°6°–48°9°
Low, likely
22°−6°–33°1°
Typical high / low
50°10° / 24°−4°
Wind
9 mph15 km/h, gusts 19 mph31 km/h
UV peak
3
Friday, Oct 30. Snow. High 46°8°, low 23°−5°. Typical 50°10° / 24°−4°. Snow 0–2 in0–5 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 35°1°
  30% chance · 0.3 in0.8 cm
2. Afternoon
  noon–6 PM
  Cloudy, 47°8°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 39°4°
  30% chance · 0.04 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 34°1°
  20% chance · 0.1 in0.3 cm
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 46.
Night: A chance of rain before 9pm, then a chance of snow. Mostly cloudy, with a low around 23. Little or no snow accumulation expected.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
39°4°–55°13°
Low, likely
23°−5°–38°3°
Typical high / low
50°10° / 24°−4°
Wind
18 mph29 km/h, gusts 24 mph38 km/h
UV peak
3
Saturday, Oct 31. Snow showers. High 41°5°, low 29°−2°. Typical 49°9° / 24°−4°. Snow 0–3 in0–8 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow showers, 33°1°
  20% chance · 0.4 in0.9 cm
2. Afternoon
  noon–6 PM
  Cloudy, 41°5°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 34°1°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 29°−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
37°3°–45°7°
Low, likely
27°−3°–32°0°
Typical high / low
49°9° / 24°−4°
Wind
14 mph23 km/h, gusts 19 mph31 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 43°6°, low 27°−3°. Typical 49°9° / 23°−5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 42°5°
  Dry
3. Evening
  6 PM–midnight
  Clear, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°0°
  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°–51°11°
Low, likely
20°−7°–30°−1°
Typical high / low
49°9° / 23°−5°
Wind
10 mph16 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 45°7°, low 32°0°. Typical 48°9° / 23°−5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 33°0°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 45°7°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 39°4°
  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
36°2°–53°12°
Low, likely
31°−1°–33°1°
Typical high / low
48°9° / 23°−5°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 41°, low 20°.
Tomorrow
Dry, high 43°, low 20°.
Monday
Dry, high 48°, low 25°, warming up.
Rest of week
Highs 41–46°; 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

Gallatin River at Logan

0.9 mi

Below flood stage

Level: 5.1 ft
Flow: 829 cfs

Reading from Sat 7 AM · NWS gauge page

East Gallatin River near Manhattan

5.6 mi

Level: 3.2 ft

Reading from Sat 6:15 AM · NWS gauge page

Jefferson River near Three Forks

8.3 mi

Below flood stage

Level: 3.6 ft
Flow: 1,430 cfs

Reading from Sat 7 AM · NWS gauge page

Missouri River at Toston

18 mi

Below flood stage

Level: 4.3 ft
Flow: 3,720 cfs

Reading from Sat 7 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: 24°−4°

Overnight low near 24°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 69Typical 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 18 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?

BOZEMAN GALLATIN FIELD AP · official normals 1991–2020 · records 1941–2026

Oct 24, today vs a typical year

Today’s expected high is 12°7° colder than typical.

Last 7 days vs normal

On average 7°4° warmer than normal (daily mean temperature).

+6°+3°SunOct 18
+8°+4°MonOct 19
+6°+3°TueOct 20
+9°+5°WedOct 21
+14°+8°ThuOct 22
+2°+1°FriOct 23
—SatOct 24

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

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: 5:42–6:42 PM; Morning 7:36–8:36 AM
Blue hour: 6:42–6:54 PM; Morning 7:24–7:36 AM; first light 7:24 AM

Stars tonight? Fair

Clear 6:54 PM–7:25 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:09 AM · rises 5:24 PM
Full moon: Oct 25
New moon: Nov 9

Looking south from Logan. The highest point on the skyline is about 10,900 ft, 42 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Logan, MT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Gallatin River at Logan

East Gallatin River near Manhattan

Jefferson River near Three Forks

Missouri River at Toston

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