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

Libby, MT weather

Sunny and 31°−1°.

Forecasts differ

Now 31°−1°

Sunny

Wind: Calm; Light through 8 PM
Dew point: 31°−1°; Dry, static shocks likely
Humidity: 100%; Air 31°−1°, dew point 31°−1° · frost likely
UV index: 0Low; Moderate 1–4 PM · peak 3
Air quality: 19Good; Main pollutant: PM2.5 (fine particles)

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below freezing until 10 AM (low 30°−1°)
Fog today 9–11 AM
Hard freeze tonight 2–11 AM (low 27°−3°)
Fog tonight 2–10 AM
Hard freeze tomorrow night from 1 AM (low 26°−3°)

This morningUp to 37°3° by 11 AM · freezing, low 30°−1° · Partly cloudy
This afternoonUp to 54°12° by 5 PM · Partly cloudy
TonightDown to 29°−2° by 5 AM · freezing, low 29°−2° · Mostly cloudy
Tomorrow morningUp to 34°1° by 11 AM · Mostly cloudy · freezing, low 27°−3°
Tomorrow afternoonUp to 54°12° by 5 PM · Mostly cloudy
Tomorrow nightDown to 27°−3° by 5 AM · freezing, low 27°−3° · 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	Sunny	31°−1° (likely 31°−1° to 36°2°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	25%	0
Sat 9a	Fog	30°−1° (likely 30°−1° to 36°2°)	30°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	31%	0
Sat 10a	Fog	34°1° (likely 34°1° to 40°4°)	34°1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	67%	1
Sat 11a	Sunny	37°3° (likely 37°3° to 45°7°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	20%	2
Sat 12p	Sunny	41°5° (likely 41°5° to 49°9°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	84%	19%	2
Sat 1p	Partly sunny	45°7° (likely 45°7° to 53°12°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	71%	29%	3
Sat 2p	Partly sunny	51°11° (likely 48°9° to 56°13°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	55%	70%	3
Sat 3p	Partly sunny	52°11° (likely 49°9° to 57°14°)	52°11°	0%	0 mph0 km/h, gusts 5 mph7 km/h	50%	70%	3
Sat 4p	Partly sunny	53°12° (likely 50°10° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	45%	70%	2
Sat 5p	Partly sunny	54°12° (likely 49°9° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	45%	68%	1
Sat 6p	Cloudy	51°11° (likely 47°8° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 5 mph9 km/h	52%	73%	1
Sat 7p	Partly cloudy	47°8° (likely 43°6° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 6 mph9 km/h	65%	76%	0
Sat 8p	Partly cloudy	45°7° (likely 41°5° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	69%	73%	0
Sat 9p	Cloudy	40°4° (likely 39°4° to 48°9°)	40°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	76%	85%	0
Sat 10p	Cloudy	38°3° (likely 38°3° to 46°8°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	81%	82%	0
Sat 11p	Cloudy	36°2° (likely 36°2° to 46°8°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	84%	77%	0
Sun 12a	Cloudy	35°2° (likely 35°2° to 45°7°)	35°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	86%	76%	0
Sun 1a	Cloudy	33°1° (likely 33°1° to 45°7°)	33°1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	93%	75%	0
Sun 2a	Fog	32°0° (likely 32°0° to 44°7°)	32°0°	0%	0 mph0 km/h, gusts 1 mph2 km/h	94%	74%	0
Sun 3a	Fog	31°−1° (likely 31°−1° to 43°6°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	95%	66%	0
Sun 4a	Fog	30°−1° (likely 30°−1° to 42°6°)	30°−1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	96%	66%	0
Sun 5a	Fog	29°−2° (likely 29°−2° to 41°5°)	29°−2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	98%	73%	0
Sun 6a	Fog	29°−2° (likely 29°−2° to 40°4°)	29°−2°	0%	1 mph2 km/h from E, gusts 2 mph4 km/h	99%	77%	0
Sun 7a	Fog	28°−2° (likely 28°−2° to 40°4°)	28°−2°	0%	1 mph2 km/h from E, gusts 2 mph4 km/h	100%	77%	0
Sun 8a	Fog	28°−2° (likely 28°−2° to 39°4°)	28°−2°	0%	1 mph2 km/h from E, gusts 2 mph4 km/h	100%	77%	0
Sun 9a	Fog	27°−3° (likely 27°−3° to 39°4°)	27°−3°	0%	1 mph2 km/h from ENE, gusts 3 mph4 km/h	100%	77%	0
Sun 10a	Cloudy	30°−1° (likely 30°−1° to 41°5°)	30°−1°	0%	1 mph2 km/h from ENE, gusts 3 mph5 km/h	100%	82%	1
Sun 11a	Cloudy	34°1° (likely 34°1° to 48°9°)	34°1°	0%	1 mph2 km/h from ENE, gusts 5 mph7 km/h	95%	73%	1
Sun 12p	Cloudy	39°4° (likely 39°4° to 53°12°)	39°4°	0%	1 mph2 km/h from ENE, gusts 7 mph11 km/h	77%	73%	2
Sun 1p	Cloudy	44°7° (likely 44°7° to 57°14°)	44°7°	0%	1 mph2 km/h from ENE, gusts 9 mph14 km/h	69%	75%	3
Sun 2p	Cloudy	50°10° (likely 49°9° to 60°16°)	50°10°	0%	1 mph2 km/h from ENE, gusts 9 mph14 km/h	56%	77%	3
Sun 3p	Cloudy	51°11° (likely 51°11° to 61°16°)	51°11°	0%	1 mph2 km/h from ENE, gusts 9 mph15 km/h	53%	80%	3
Sun 4p	Cloudy	53°12° (likely 51°11° to 63°17°)	53°12°	0%	1 mph2 km/h from ENE, gusts 8 mph12 km/h	49%	79%	2
Sun 5p	Cloudy	54°12° (likely 50°10° to 64°18°)	54°12°	0%	1 mph2 km/h from ENE, gusts 9 mph15 km/h	48%	76%	1
Sun 6p	Cloudy	51°11° (likely 47°8° to 59°15°)	51°11°	0%	1 mph2 km/h from ENE, gusts 11 mph17 km/h	55%	75%	0
Sun 7p	Cloudy	46°8° (likely 43°6° to 54°12°)	46°8°	0%	1 mph2 km/h from ENE, gusts 6 mph10 km/h	69%	75%	0
Sun 8p	Cloudy	42°6° (likely 39°4° to 52°11°)	42°6°	0%	1 mph2 km/h from ENE, gusts 5 mph8 km/h	77%	75%	0
Sun 9p	Mostly cloudy	38°3° (likely 37°3° to 50°10°)	38°3°	0%	1 mph2 km/h from ENE, gusts 7 mph12 km/h	81%	73%	0
Sun 10p	Cloudy	36°2° (likely 35°2° to 48°9°)	36°2°	0%	1 mph2 km/h from ENE, gusts 7 mph11 km/h	85%	78%	0
Sun 11p	Cloudy	34°1° (likely 34°1° to 47°8°)	34°1°	0%	1 mph2 km/h from ENE, gusts 4 mph7 km/h	88%	81%	0
Mon 12a	Cloudy	33°1° (likely 33°1° to 47°8°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	91%	83%	0
Mon 1a	Cloudy	31°−1° (likely 31°−1° to 46°8°)	31°−1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	94%	83%	0
Mon 2a	Cloudy	30°−1° (likely 30°−1° to 46°8°)	30°−1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	97%	81%	0
Mon 3a	Cloudy	29°−2° (likely 29°−2° to 45°7°)	29°−2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	99%	83%	0
Mon 4a	Cloudy	28°−2° (likely 28°−2° to 44°7°)	28°−2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	87%	0
Mon 5a	Cloudy	27°−3° (likely 27°−3° to 42°6°)	27°−3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	99%	89%	0
Mon 6a	Cloudy	27°−3° (likely 27°−3° to 41°5°)	27°−3°	5%	0 mph0 km/h, gusts 2 mph4 km/h	99%	88%	0
Mon 7a	Mostly cloudy	26°−3° (likely 26°−3° to 37°3°)	26°−3°	5%	0 mph0 km/h, gusts 2 mph4 km/h	100%	86%	0

Days ahead

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

Today, Oct 24. Fog. High 55°13°, low 27°−3°. Typical 52°11° / 31°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Fog, 31°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Fog, 29°−2°
  Dry
Official NWS forecast
Today: Areas of fog before 11am. Mostly sunny, with a high near 55. Wind around 0 mph.
Tonight: Areas of fog after 2am. Mostly cloudy, with a low around 27. Wind around 0 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
50°10°–57°14°
Low, likely
27°−3°–36°2°
Typical high / low
52°11° / 31°−1°
Wind
6 mph10 km/h, gusts 11 mph18 km/h
UV peak
3
Tomorrow, Oct 25. Fog. High 54°12°, low 25°−4°. Typical 52°11° / 31°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Fog, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 42°6°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 27°−3°
  Dry
Official NWS forecast
Day: Areas of fog before 11am. Mostly cloudy, with a high near 54. East northeast wind around 1 mph.
Night: Mostly cloudy, with a low around 25. North northeast wind around 1 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–64°18°
Low, likely
25°−4°–39°4°
Typical high / low
52°11° / 31°−1°
Wind
7 mph12 km/h, gusts 17 mph27 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 54°12°, low 29°−2°. Typical 51°11° / 31°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 53°12°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 41°5°
  20% chance · 0.02 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 54. Wind around 0 mph.
Night: A slight chance of rain after midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
47°8°–54°12°
Low, likely
29°−2°–36°2°
Typical high / low
51°11° / 31°−1°
Wind
5 mph8 km/h, gusts 11 mph18 km/h
UV peak
2
Tuesday, Oct 27. Rain. High 52°11°, low 29°−2°. Typical 51°11° / 31°−1°. Rain 0.11 in2.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 41°5°
  30% chance · 0.02 in0.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 49°9°
  30% chance · 0.03 in0.6 mm
3. Evening
  6 PM–midnight
  Drizzle, 43°6°
  40% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 40°4°
  60% chance · 0.08 in2.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain. Mostly cloudy, with a high near 52.
Night: A chance of rain. Cloudy, with a low around 29.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
44°7°–52°11°
Low, likely
29°−2°–41°5°
Typical high / low
51°11° / 31°−1°
Wind
5 mph8 km/h, gusts 16 mph26 km/h
UV peak
2
Wednesday, Oct 28. Rain. High 49°9°, low 23°−5°. Typical 50°10° / 30°−1°. Rain 0.26 in6.6 mm, 70% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 40°4°
  50% chance · 0.2 in0.4 cm
2. Afternoon
  noon–6 PM
  Snow, 46°8°
  70% chance · 0.1 in0.3 cm
3. Evening
  6 PM–midnight
  Drizzle, 41°5°
  60% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 36°2°
  50% chance · 0.05 in1.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain likely. Mostly cloudy, with a high near 49.
Night: Rain likely before midnight, then a 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
42°6°–49°9°
Low, likely
23°−5°–41°5°
Typical high / low
50°10° / 30°−1°
Wind
5 mph7 km/h, gusts 10 mph17 km/h
UV peak
1
Thursday, Oct 29. Snow. High 48°9°, low 21°−6°. Typical 50°10° / 30°−1°. Snow 0–1 in0–3 cm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 35°1°
  40% chance · 0.02 in0.4 mm
2. Afternoon
  noon–6 PM
  Partly sunny, 48°9°
  40% chance
3. Evening
  6 PM–midnight
  Drizzle, 40°5°
  40% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Snow, 37°3°
  30% chance · 0.1 in0.3 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow. Mostly cloudy, with a high near 48.
Night: A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 21.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
42°6°–50°10°
Low, likely
21°−6°–36°2°
Typical high / low
50°10° / 30°−1°
Wind
6 mph9 km/h, gusts 13 mph20 km/h
UV peak
3
Friday, Oct 30. Snow. High 49°9°, low 22°−6°. Typical 49°9° / 30°−1°. Snow 0–3 in0–8 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 37°3°
  20% chance · 0.3 in0.8 cm
2. Afternoon
  noon–6 PM
  Snow, 42°5°
  20% chance · 0.1 in0.3 cm
3. Evening
  6 PM–midnight
  Partly cloudy, 37°3°
  20% chance · 0.2 in0.6 cm
4. Overnight
  midnight–6 AM
  Partly cloudy, 33°0°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before 9am, then a slight chance of rain and snow. Partly sunny, with a high near 49.
Night: Mostly cloudy, with a low around 22.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
37°3°–49°9°
Low, likely
22°−6°–36°2°
Typical high / low
49°9° / 30°−1°
Wind
5 mph8 km/h, gusts 18 mph29 km/h
UV peak
3
Saturday, Oct 31. Drizzle. High 41°5°, low 30°−1°. Typical 49°9° / 30°−1°. Rain 0.07 in1.8 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 42°6°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
38°3°–45°7°
Low, likely
27°−3°–33°1°
Typical high / low
49°9° / 30°−1°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 43°6°, low 31°−1°. Typical 48°9° / 30°−1°. Rain 0.03 in0.8 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 44°7°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 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
40°4°–49°9°
Low, likely
29°−2°–33°1°
Typical high / low
48°9° / 30°−1°
Wind
3 mph5 km/h, gusts 16 mph26 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 44°7°, low 30°−1°. Typical 48°9° / 30°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 46°8°
  Dry
3. Evening
  6 PM–midnight
  Partly 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
36°2°–55°13°
Low, likely
26°−3°–34°1°
Typical high / low
48°9° / 30°−1°
Wind
4 mph6 km/h, gusts 10 mph17 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 55°, low 27°.
Tomorrow
Dry, high 54°, low 25°.
Monday
Dry, high 54°, low 29°.
Rest of week
Highs 41–52°; chance of precipitation on Wednesday, Thursday.

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

Kootenai River below Libby Dam near Libby

11 mi

Below flood stage

Level: 17.9 ft
Flow: 4,240 cfs

Forecast peak 18.3 ft Mon 5 AM

Reading from Sat 7 AM · NWS gauge page

Fisher River near Libby

11 mi

Below flood stage

Level: 2.8 ft
Flow: 79 cfs

Forecast peak 2.8 ft Sat 12 PM

Reading from Sat 6:45 AM · NWS gauge page

Yaak River near Troy

23 mi

Below flood stage

Level: 2.9 ft
Flow: 87 cfs

Forecast peak 3.0 ft Sat 12 PM

Reading from Sat 6:45 AM · NWS gauge page

Lake Koocanusa near Libby

13 mi

Level: 2444 ft

Reading from Sat 7 AM · NWS gauge page

For your home

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

Heating this week

About 69% less heating than a typical week.

This week 53Typical 171

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 37
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 31°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?

Libby Dam (base) · official normals 1991–2020 · records 1986–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° warmer than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

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

Libby 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: 5:51–6:55 PM; Morning 7:56–9:00 AM
Blue hour: 6:55–7:08 PM; Morning 7:43–7:56 AM; first light 7:43 AM

Stars tonight? Poor

Clouds most of the night (about 75% cover).

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:30 AM · rises 5:37 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from Libby. The highest point on the skyline is about 8,000 ft, 12 mi away.Skyline from USGS elevation data, heights drawn up to 2.5× taller. Sky, sun and moon as they are now.

Libby, MT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Kootenai River below Libby Dam near Libby

Fisher River near Libby

Yaak River near Troy

Lake Koocanusa near Libby

For your home

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? Poor

Moon