Observed 11:35 AM MDT at KBZN

Amsterdam, MT weather

Foggy and 28°−2°, 12°7° colder than a typical Oct 24, freeze watch tonight, low 24°−4°.

Forecasts agree

Now 28°−2°

Fog

Wind: Calm; Light through 11 PM
Visibility: 1 mi1.6 km; Fog · under 3 mi5 km
Dew point: 28°−2°; Dry, static shocks likely
Humidity: 100%; Air 28°−2°, dew point 28°−2° · frost likely
UV index: 3Moderate; Moderate 12–5 PM · peak 4
Pressure: 30.35 inHg1028 hPa; Falling · −0.10 inHg−3.4 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

22°12° cooler than this time yesterday (50°10° then, 28°−2° now)

Good hours for

Fog until noon
High 41°5° today at 4 PM
Hard freeze tonight 8 PM–noon (low 23°−5°)
Above 30°−1° tomorrow by 10 AM
Hard freeze tomorrow night from 8 PM (low 23°−5°)

This afternoonUp to 41°5° by 4 PM · Clear
TonightDown to 24°−4° by 5 AM · freezing, low 24°−4° · Clear
Tomorrow morningUp to 32°0° by 11 AM · freezing, low 23°−5° · Clear
Tomorrow afternoonUp to 42°6° by 5 PM · Clear
Tomorrow nightDown to 23°−5° by 5 AM · freezing, low 23°−5° · Partly cloudy
Monday morningUp to 30°−1° by 10 AM · freezing, low 23°−5° · 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 11a	Fog	33°1° (likely 28°−2° to 33°1°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	94%	80%	2
Sat 12p	Partly sunny	36°2° (likely 30°−1° to 36°2°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	89%	54%	3
Sat 1p	Sunny	38°3° (likely 33°1° to 38°3°)	38°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	85%	22%	4
Sat 2p	Sunny	40°4° (likely 36°2° to 40°4°)	40°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	4%	4
Sat 3p	Sunny	39°4° (likely 38°3° to 41°5°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	78%	0%	4
Sat 4p	Sunny	41°5° (likely 39°4° to 42°6°)	41°5°	0%	0 mph0 km/h, gusts 4 mph6 km/h	75%	0%	3
Sat 5p	Sunny	39°4° (likely 38°3° to 42°6°)	39°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	73%	1%	2
Sat 6p	Clear	39°4° (likely 36°2° to 40°4°)	39°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	77%	1%	1
Sat 7p	Clear	35°2° (likely 33°1° to 37°3°)	35°2°	0%	0 mph0 km/h, gusts 2 mph2 km/h	85%	1%	0
Sat 8p	Clear	31°−1° (likely 31°−1° to 35°2°)	31°−1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	90%	1%	0
Sat 9p	Clear	30°−1° (likely 30°−1° to 34°1°)	30°−1°	0%	2 mph3 km/h from S, gusts 3 mph5 km/h	93%	1%	0
Sat 10p	Clear	29°−2° (likely 29°−2° to 34°1°)	29°−2°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	92%	3%	0
Sat 11p	Clear	28°−2° (likely 28°−2° to 34°1°)	28°−2°	0%	1 mph2 km/h from SSE, gusts 4 mph6 km/h	91%	2%	0
Sun 12a	Clear	28°−2° (likely 28°−2° to 34°1°)	28°−2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	90%	4%	0
Sun 1a	Clear	26°−3° (likely 26°−3° to 32°0°)	26°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	0%	0
Sun 2a	Clear	26°−3° (likely 26°−3° to 33°1°)	26°−3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	91%	0%	0
Sun 3a	Clear	26°−3° (likely 26°−3° to 33°1°)	26°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	91%	0%	0
Sun 4a	Clear	26°−3° (likely 26°−3° to 34°1°)	26°−3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	0
Sun 5a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	90%	0%	0
Sun 6a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	89%	0%	0
Sun 7a	Clear	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	93%	0%	0
Sun 8a	Sunny	23°−5° (likely 23°−5° to 34°1°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	0%	0
Sun 9a	Sunny	24°−4° (likely 24°−4° to 34°1°)	24°−4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	0%	0
Sun 10a	Sunny	30°−1° (likely 30°−1° to 38°3°)	30°−1°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	2%	1
Sun 11a	Sunny	32°0° (likely 32°0° to 41°5°)	32°0°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	93%	0%	2
Sun 12p	Sunny	34°1° (likely 34°1° to 44°7°)	34°1°	0%	2 mph3 km/h from NW, gusts 6 mph9 km/h	88%	0%	3
Sun 1p	Sunny	37°3° (likely 37°3° to 46°8°)	37°3°	0%	2 mph3 km/h from NNW, gusts 9 mph14 km/h	83%	0%	4
Sun 2p	Sunny	40°4° (likely 40°4° to 47°8°)	40°4°	0%	3 mph5 km/h from NNW, gusts 8 mph12 km/h	80%	0%	4
Sun 3p	Sunny	41°5° (likely 41°5° to 48°9°)	41°5°	0%	3 mph5 km/h from NNW, gusts 7 mph11 km/h	77%	0%	3
Sun 4p	Sunny	41°5° (likely 41°5° to 48°9°)	41°5°	0%	2 mph3 km/h from NNW, gusts 6 mph10 km/h	74%	2%	3
Sun 5p	Sunny	42°6° (likely 42°6° to 47°8°)	42°6°	0%	1 mph2 km/h from NNW, gusts 6 mph9 km/h	73%	5%	1
Sun 6p	Clear	40°4° (likely 39°4° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 6 mph9 km/h	78%	11%	1
Sun 7p	Partly cloudy	36°2° (likely 36°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 6 mph10 km/h	85%	20%	0
Sun 8p	Clear	32°0° (likely 32°0° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 6 mph10 km/h	92%	40%	0
Sun 9p	Clear	29°−2° (likely 29°−2° to 37°3°)	29°−2°	0%	2 mph3 km/h from ESE, gusts 6 mph9 km/h	96%	40%	0
Sun 10p	Clear	28°−2° (likely 28°−2° to 36°2°)	28°−2°	0%	2 mph3 km/h from ESE, gusts 7 mph12 km/h	97%	41%	0
Sun 11p	Clear	27°−3° (likely 27°−3° to 34°1°)	27°−3°	0%	2 mph3 km/h from ESE, gusts 5 mph8 km/h	95%	42%	0
Mon 12a	Clear	27°−3° (likely 27°−3° to 33°1°)	27°−3°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	93%	43%	0
Mon 1a	Clear	26°−3° (likely 26°−3° to 33°1°)	26°−3°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	93%	42%	0
Mon 2a	Clear	25°−4° (likely 25°−4° to 33°1°)	25°−4°	0%	1 mph2 km/h from SE, gusts 2 mph4 km/h	94%	41%	0
Mon 3a	Clear	24°−4° (likely 24°−4° to 33°1°)	24°−4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	95%	40%	0
Mon 4a	Clear	24°−4° (likely 24°−4° to 32°0°)	24°−4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	94%	36%	0
Mon 5a	Clear	23°−5° (likely 23°−5° to 31°−1°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	37%	0
Mon 6a	Partly cloudy	23°−5° (likely 22°−6° to 31°−1°)	23°−5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	93%	38%	0
Mon 7a	Partly cloudy	23°−5° (likely 19°−7° to 30°−1°)	23°−5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	95%	24%	0
Mon 8a	Partly sunny	23°−5° (likely 19°−7° to 29°−2°)	23°−5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	98%	43%	0
Mon 9a	Partly sunny	25°−4° (likely 21°−6° to 32°0°)	25°−4°	0%	1 mph2 km/h from ESE, gusts 2 mph3 km/h	98%	57%	0
Mon 10a	Partly sunny	30°−1° (likely 24°−4° to 36°2°)	30°−1°	0%	1 mph2 km/h from ESE, gusts 2 mph3 km/h	95%	58%	1

Days ahead

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

Today, Oct 24. Fog. High 41°5°, low 22°−6°. Typical 53°12° / 26°−3°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 41°5°
  Dry
2. Evening
  6 PM–midnight
  Clear, 31°−1°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 24°−4°
  Dry
Official NWS forecast
Today: Areas of fog before noon. Sunny, with a high near 41. Wind around 0 mph.
Tonight: Patchy fog between 1am and 2am. Mostly clear, with a low around 22. Southeast wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
39°4°–42°6°
Low, likely
22°−6°–27°−3°
Typical high / low
53°12° / 26°−3°
Wind
6 mph9 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 43°6°, low 22°−6°. Typical 52°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 42°6°
  Dry
3. Evening
  6 PM–midnight
  Clear, 32°0°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 23°−5°
  Dry
Official NWS forecast
Day: Patchy fog between 7am and 10am. Sunny, with a high near 43. North northwest wind 0 to 3 mph.
Night: Partly cloudy, with a low around 22. East southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–48°9°
Low, likely
22°−6°–31°−1°
Typical high / low
52°11° / 26°−3°
Wind
7 mph12 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 49°9°, low 28°−2°. Typical 52°11° / 26°−3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 23°−5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 40°4°
  40% chance · 0.11 in2.8 mm
4. Overnight
  midnight–6 AM
  Rain, 35°2°
  60% chance · 0.15 in3.9 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 49. Northeast wind around 1 mph.
Night: A chance of rain. Mostly cloudy, with a low around 28. Southeast wind 0 to 5 mph. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
47°8°–51°11°
Low, likely
22°−6°–29°−2°
Typical high / low
52°11° / 26°−3°
Wind
10 mph17 km/h, gusts 18 mph29 km/h
UV peak
4
Tuesday, Oct 27. Snow. High 46°8°, low 24°−4°. Typical 51°11° / 25°−4°. Snow < 1 in< 2 cm, 60% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 35°2°
  60% chance · 0.03 in0.7 mm
2. Afternoon
  noon–6 PM
  Drizzle, 49°9°
  40% chance
3. Evening
  6 PM–midnight
  Cloudy, 39°4°
  30% chance
4. Overnight
  midnight–6 AM
  Partly cloudy, 30°−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 46. South wind 1 to 5 mph.
Night: A chance of rain before 3am, then a chance of snow. Mostly cloudy, with a low around 24. Southwest wind 2 to 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
46°8°–49°9°
Low, likely
24°−4°–38°3°
Typical high / low
51°11° / 25°−4°
Wind
16 mph26 km/h, gusts 27 mph44 km/h
UV peak
2
Wednesday, Oct 28. Partly sunny. High 46°8°, low 23°−5°. Typical 51°11° / 25°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Clear, 37°3°
  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 46.
Night: Partly cloudy, with a low around 23.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
46°8°–50°10°
Low, likely
22°−6°–33°1°
Typical high / low
51°11° / 25°−4°
Wind
17 mph27 km/h, gusts 28 mph46 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 45°7°, low 24°−4°. Typical 50°10° / 24°−4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  30% chance · 0.05 in1.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 33°0°
  30% chance · 0.09 in2.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 45.
Night: A slight chance of rain and snow. Mostly cloudy, with a low around 24.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–48°9°
Low, likely
23°−5°–33°1°
Typical high / low
50°10° / 24°−4°
Wind
6 mph10 km/h, gusts 14 mph22 km/h
UV peak
2
Friday, Oct 30. Snow. High 46°8°, low 25°−4°. Typical 50°10° / 24°−4°. Snow 0–2 in0–5 cm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 31°0°
  40% chance · 0.1 in0.3 cm
2. Afternoon
  noon–6 PM
  Cloudy, 38°3°
  40% chance · 0.2 in0.5 cm
3. Evening
  6 PM–midnight
  Drizzle, 33°0°
  30% chance · 0.04 in0.9 mm
4. Overnight
  midnight–6 AM
  Drizzle, 28°−2°
  30% chance · 0.03 in0.6 mm
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 25. Little or no snow accumulation expected.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
37°3°–46°8°
Low, likely
25°−4°–32°0°
Typical high / low
50°10° / 24°−4°
Wind
5 mph7 km/h, gusts 29 mph47 km/h
UV peak
1
Saturday, Oct 31. Drizzle. High 38°3°, low 24°−4°. Typical 49°9° / 24°−4°. Rain 0.05 in1.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 28°−2°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Sunny, 36°2°
  20% chance · 0.2 in0.5 cm
3. Evening
  6 PM–midnight
  Mostly clear, 30°−1°
  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
36°2°–40°4°
Low, likely
15°−9°–29°−2°
Typical high / low
49°9° / 24°−4°
Wind
17 mph27 km/h, gusts 25 mph40 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 44°7°, low 23°−5°. Typical 49°9° / 23°−5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 25°−4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Clear, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°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
36°2°–48°9°
Low, likely
11°−12°–29°−2°
Typical high / low
49°9° / 23°−5°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 44°7°, low 31°−1°. Typical 48°9° / 23°−5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°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
33°1°–52°11°
Low, likely
28°−2°–32°0°
Typical high / low
48°9° / 23°−5°
Wind
6 mph9 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 41°, low 22°.
Tomorrow
Dry, high 43°, low 22°.
Monday
Dry, high 49°, low 28°, warming up.
Rest of week
Highs 38–46°; 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

East Gallatin River near Manhattan

11 mi

Level: 3.2 ft

Reading from Sat 10:15 AM · NWS gauge page

Gallatin River at Logan

11 mi

Below flood stage

Level: 5.2 ft
Flow: 849 cfs

Reading from Sat 11 AM · NWS gauge page

Jefferson River near Three Forks

17 mi

Below flood stage

Level: 3.6 ft
Flow: 1,460 cfs

Reading from Sat 11 AM · NWS gauge page

Gallatin River near Gallatin Gateway

17 mi

Below flood stage

Level: 1.5 ft
Flow: 417 cfs

Reading from Sat 11 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 64% less heating than a typical week.

This week 67Typical 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 19 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 28°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

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

Sun & moon

Sun

Daylight: 10 h 30 min; Losing 2 min 58 s a day; shortest Dec 21, 1 h 49 min less
Golden hour: 5:42–6:42 PM; Morning 7:35–8:36 AM
Blue hour: 6:42–6:54 PM; Morning 7:23–7:35 AM; first light 7:23 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 Amsterdam. The highest point on the skyline is about 10,700 ft, 26 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Amsterdam, MT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

East Gallatin River near Manhattan

Gallatin River at Logan

Jefferson River near Three Forks

Gallatin River near Gallatin Gateway

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