Model estimate for 2:00 PM MDT (no recent station report)

Swan Lake, MT weather

Mostly sunny and 46°8°.

Mostly agree

Now 46°8°

Mostly sunny

Wind: Calm; Light through 2 AM
Dew point: 31°−1°; Dry, static shocks likely
UV index: 3Moderate; Moderate until 4 PM

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 47°8° today at 3 PM
Below 40°4° tonight after 8 PM
Hard freeze tonight 2–11 AM (low 28°−2°)
Above 40°4° tomorrow by noon
Hard freeze tomorrow night midnight–11 AM (low 27°−3°)

This afternoonNear 47°8° · Clear
TonightDown to 30°−1° by 4 AM · freezing, low 30°−1° · Partly cloudy
Tomorrow morningUp to 35°2° by 11 AM · freezing, low 28°−2° · Partly cloudy
Tomorrow afternoonUp to 50°10° by 4 PM · Mostly cloudy
Tomorrow nightDown to 29°−2° by 4 AM · freezing, low 29°−2° · Mostly cloudy
Monday morningUp to 38°3° by 11 AM · freezing, low 27°−3° · 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 2p	Mostly sunny	46°8° (likely 41°5° to 46°8°)	46°8°	0%	2 mph3 km/h from SW, gusts 12 mph19 km/h	55%	16%	3
Sat 3p	Sunny	47°8° (likely 42°6° to 47°8°)	47°8°	0%	2 mph3 km/h from SW, gusts 11 mph17 km/h	52%	4%	3
Sat 4p	Sunny	47°8° (likely 43°6° to 47°8°)	47°8°	0%	2 mph3 km/h from SW, gusts 10 mph16 km/h	52%	4%	2
Sat 5p	Sunny	47°8° (likely 43°6° to 47°8°)	47°8°	0%	1 mph2 km/h from SW, gusts 10 mph16 km/h	52%	15%	1
Sat 6p	Mostly cloudy	44°7° (likely 40°4° to 44°7°)	44°7°	0%	0 mph0 km/h, gusts 7 mph12 km/h	60%	51%	1
Sat 7p	Mostly cloudy	41°5° (likely 38°3° to 41°5°)	41°5°	0%	0 mph0 km/h, gusts 6 mph9 km/h	69%	64%	0
Sat 8p	Mostly cloudy	38°3° (likely 35°2° to 39°4°)	38°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	71%	66%	0
Sat 9p	Cloudy	37°3° (likely 34°1° to 39°4°)	37°3°	0%	2 mph3 km/h from ESE, gusts 6 mph9 km/h	72%	70%	0
Sat 10p	Mostly cloudy	36°2° (likely 33°1° to 38°3°)	36°2°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	73%	59%	0
Sat 11p	Mostly cloudy	35°2° (likely 32°0° to 38°3°)	35°2°	0%	2 mph3 km/h from ESE, gusts 6 mph9 km/h	75%	67%	0
Sun 12a	Mostly cloudy	34°1° (likely 31°−1° to 38°3°)	31°−1°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	78%	66%	0
Sun 1a	Mostly cloudy	33°1° (likely 30°−1° to 37°3°)	30°−1°	0%	3 mph5 km/h from E, gusts 5 mph9 km/h	77%	57%	0
Sun 2a	Partly cloudy	32°0° (likely 29°−2° to 38°3°)	29°−2°	0%	3 mph5 km/h from E, gusts 5 mph9 km/h	78%	62%	0
Sun 3a	Mostly clear	31°−1° (likely 28°−2° to 38°3°)	26°−3°	0%	5 mph8 km/h from E, gusts 11 mph18 km/h	80%	35%	0
Sun 4a	Partly cloudy	30°−1° (likely 28°−2° to 38°3°)	25°−4°	0%	5 mph8 km/h from ENE, gusts 16 mph26 km/h	80%	34%	0
Sun 5a	Mostly clear	30°−1° (likely 28°−2° to 37°3°)	25°−4°	0%	5 mph8 km/h from ENE, gusts 20 mph33 km/h	78%	36%	0
Sun 6a	Partly cloudy	30°−1° (likely 27°−3° to 38°3°)	25°−4°	0%	5 mph8 km/h from ENE, gusts 19 mph31 km/h	75%	30%	0
Sun 7a	Partly cloudy	29°−2° (likely 27°−3° to 38°3°)	24°−4°	0%	5 mph8 km/h from ENE, gusts 19 mph30 km/h	77%	26%	0
Sun 8a	Mostly sunny	28°−2° (likely 27°−3° to 38°3°)	23°−5°	0%	5 mph8 km/h from ENE, gusts 21 mph34 km/h	75%	57%	0
Sun 9a	Partly sunny	28°−2° (likely 28°−2° to 39°4°)	23°−5°	0%	5 mph8 km/h from ENE, gusts 21 mph34 km/h	79%	55%	0
Sun 10a	Mostly cloudy	30°−1° (likely 30°−1° to 41°5°)	26°−3°	0%	3 mph5 km/h from ENE, gusts 21 mph34 km/h	80%	61%	1
Sun 11a	Partly sunny	35°2° (likely 35°2° to 44°7°)	32°0°	0%	3 mph5 km/h from E, gusts 19 mph30 km/h	68%	60%	2
Sun 12p	Mostly cloudy	40°4° (likely 38°3° to 46°8°)	38°3°	0%	3 mph5 km/h from E, gusts 17 mph27 km/h	58%	57%	3
Sun 1p	Mostly cloudy	44°7° (likely 41°5° to 48°9°)	42°6°	0%	3 mph5 km/h from E, gusts 14 mph23 km/h	54%	57%	3
Sun 2p	Cloudy	48°9° (likely 43°6° to 49°9°)	48°9°	0%	2 mph3 km/h from E, gusts 13 mph20 km/h	46%	69%	3
Sun 3p	Mostly cloudy	49°9° (likely 45°7° to 50°10°)	49°9°	0%	2 mph3 km/h from E, gusts 12 mph19 km/h	43%	65%	3
Sun 4p	Cloudy	50°10° (likely 45°7° to 50°10°)	50°10°	0%	2 mph3 km/h from E, gusts 11 mph18 km/h	41%	67%	2
Sun 5p	Cloudy	49°9° (likely 42°6° to 50°10°)	49°9°	0%	2 mph3 km/h from ENE, gusts 11 mph18 km/h	43%	71%	1
Sun 6p	Cloudy	45°7° (likely 38°3° to 47°8°)	43°6°	0%	5 mph8 km/h from ENE, gusts 11 mph17 km/h	53%	74%	0
Sun 7p	Cloudy	41°5° (likely 34°1° to 44°7°)	38°3°	0%	5 mph8 km/h from ENE, gusts 15 mph24 km/h	64%	74%	0
Sun 8p	Cloudy	37°3° (likely 31°−1° to 43°6°)	33°1°	0%	5 mph8 km/h from ENE, gusts 16 mph26 km/h	68%	74%	0
Sun 9p	Cloudy	35°2° (likely 29°−2° to 43°6°)	29°−2°	0%	7 mph11 km/h from E, gusts 15 mph23 km/h	69%	73%	0
Sun 10p	Cloudy	34°1° (likely 28°−2° to 42°6°)	28°−2°	0%	7 mph11 km/h from E, gusts 13 mph21 km/h	70%	71%	0
Sun 11p	Mostly cloudy	33°1° (likely 27°−3° to 41°5°)	27°−3°	0%	7 mph11 km/h from E, gusts 11 mph18 km/h	72%	56%	0
Mon 12a	Mostly cloudy	32°0° (likely 27°−3° to 41°5°)	29°−2°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	74%	57%	0
Mon 1a	Mostly cloudy	31°−1° (likely 28°−2° to 41°5°)	28°−2°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	72%	68%	0
Mon 2a	Cloudy	31°−1° (likely 28°−2° to 40°4°)	28°−2°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	72%	78%	0
Mon 3a	Cloudy	30°−1° (likely 28°−2° to 39°4°)	30°−1°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	73%	80%	0
Mon 4a	Cloudy	29°−2° (likely 28°−2° to 38°3°)	29°−2°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	74%	83%	0
Mon 5a	Cloudy	29°−2° (likely 28°−2° to 37°3°)	29°−2°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	72%	87%	0
Mon 6a	Cloudy	29°−2° (likely 28°−2° to 35°2°)	29°−2°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	71%	89%	0
Mon 7a	Cloudy	28°−2° (likely 27°−3° to 32°0°)	28°−2°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	73%	92%	0
Mon 8a	Cloudy	27°−3° (likely 27°−3° to 32°0°)	27°−3°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	75%	91%	0
Mon 9a	Cloudy	28°−2° (likely 28°−2° to 33°1°)	28°−2°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	76%	94%	0
Mon 10a	Cloudy	32°0° (likely 32°0° to 36°2°)	32°0°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	71%	92%	1
Mon 11a	Cloudy	38°3° (likely 36°2° to 40°4°)	38°3°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	64%	91%	1
Mon 12p	Cloudy	43°6° (likely 40°4° to 44°7°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	57%	92%	2
Mon 1p	Cloudy	47°8° (likely 43°6° to 47°8°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	52%	88%	3

Days ahead

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

Today, Oct 24. Partly sunny. High 47°8°, low 28°−2°. Typical 51°11° / 36°2°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Sunny, 47°8°
  Dry
2. Evening
  6 PM–midnight
  Cloudy, 38°3°
  Dry
3. Overnight
  midnight–6 AM
  Mostly clear, 30°−1°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 47. Southwest wind around 2 mph.
Tonight: Mostly cloudy, with a low around 28. East southeast wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
43°6°–47°8°
Low, likely
28°−2°–32°0°
Typical high / low
51°11° / 36°2°
Wind
8 mph14 km/h, gusts 20 mph32 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 50°10°, low 27°−3°. Typical 50°10° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 28°−2°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 50°10°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 29°−2°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 50. East northeast wind around 5 mph.
Night: Mostly cloudy, with a low around 27. East northeast wind 2 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–50°10°
Low, likely
26°−3°–37°3°
Typical high / low
50°10° / 36°2°
Wind
17 mph27 km/h, gusts 25 mph41 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 50°10°, low 31°−1°. Typical 50°10° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 27°−3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 48°9°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  40% chance
4. Overnight
  midnight–6 AM
  Snow, 34°1°
  70% chance · 0.7 in1.7 cm
Official NWS forecast
Day: Partly sunny, with a high near 50. Northeast wind around 2 mph.
Night: A chance of rain before 9pm, then rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
45°7°–50°10°
Low, likely
26°−3°–31°−1°
Typical high / low
50°10° / 36°2°
Wind
7 mph11 km/h, gusts 15 mph23 km/h
UV peak
3
Tuesday, Oct 27. Snow. High 41°5°, low 30°−1°. Typical 49°9° / 35°2°. Snow 0–7 in0–18 cm, 90% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 34°1°
  80% chance · 0.9 in2.3 cm
2. Afternoon
  noon–6 PM
  Snow, 38°3°
  80% chance · 0.8 in2 cm
3. Evening
  6 PM–midnight
  Snow, 35°1°
  80% chance · 0.8 in2 cm
4. Overnight
  midnight–6 AM
  Snow, 33°0°
  70% chance · 0.4 in1 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain and snow. Cloudy, with a high near 41. New snow accumulation of less than half an inch possible.
Night: Rain and snow. Cloudy, with a low around 30. New snow accumulation of less than half an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
36°2°–41°5°
Low, likely
30°−1°–35°2°
Typical high / low
49°9° / 35°2°
Wind
8 mph13 km/h, gusts 24 mph39 km/h
UV peak
2
Wednesday, Oct 28. Snow. High 43°6°, low 26°−3°. Typical 49°9° / 35°2°. Snow 0–3 in0–8 cm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 32°0°
  60% chance · 0.2 in0.5 cm
2. Afternoon
  noon–6 PM
  Snow showers, 38°3°
  50% chance · 0.2 in0.5 cm
3. Evening
  6 PM–midnight
  Snow, 33°0°
  50% chance · 0.2 in0.4 cm
4. Overnight
  midnight–6 AM
  Snow, 30°−1°
  40% chance · 0.3 in0.6 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 43.
Night: Rain and snow likely. Mostly cloudy, with a low around 26. New snow accumulation of less than one inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
37°3°–43°6°
Low, likely
26°−3°–32°0°
Typical high / low
49°9° / 35°2°
Wind
11 mph18 km/h, gusts 30 mph48 km/h
UV peak
3
Thursday, Oct 29. Snow. High 42°6°, low 24°−4°. Typical 48°9° / 35°2°. Snow 0–4 in0–10 cm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 29°−2°
  40% chance · 0.6 in1.5 cm
2. Afternoon
  noon–6 PM
  Drizzle, 37°3°
  40% chance · 0.2 in0.5 cm
3. Evening
  6 PM–midnight
  Drizzle, 31°−1°
  40% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Snow, 26°−4°
  40% chance · 0.3 in0.7 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 42. New snow accumulation of less than half an inch possible.
Night: A chance of snow. Mostly cloudy, with a low around 24. New snow accumulation of less than half an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
35°2°–42°6°
Low, likely
24°−4°–29°−2°
Typical high / low
48°9° / 35°2°
Wind
6 mph9 km/h, gusts 22 mph35 km/h
UV peak
1
Friday, Oct 30. Snow. High 41°5°, low 23°−5°. Typical 48°9° / 35°2°. Snow 0–4 in0–10 cm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow, 24°−4°
  40% chance · 0.6 in1.5 cm
2. Afternoon
  noon–6 PM
  Snow, 32°0°
  40% chance · 0.2 in0.5 cm
3. Evening
  6 PM–midnight
  Cloudy, 27°−3°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Snow showers, 22°−5°
  20% chance · 0.02 in0.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of snow before noon, then a slight chance of rain and snow. Mostly cloudy, with a high near 41. Little or no snow accumulation expected.
Night: A slight chance of snow. Mostly cloudy, with a low around 23.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
31°−1°–41°5°
Low, likely
16°−9°–28°−2°
Typical high / low
48°9° / 35°2°
Wind
8 mph12 km/h, gusts 21 mph33 km/h
UV peak
3
Saturday, Oct 31. Snow. High 31°−1°, low 20°−7°. Typical 48°9° / 34°1°. Snow 0–2 in0–5 cm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Snow showers, 25°−4°
  20% chance · 0.2 in0.5 cm
2. Afternoon
  noon–6 PM
  Snow, 31°−1°
  Dry
3. Evening
  6 PM–midnight
  Snow, 26°−3°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 20°−7°
  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
28°−2°–35°2°
Low, likely
17°−8°–25°−4°
Typical high / low
48°9° / 34°1°
Wind
8 mph13 km/h, gusts 22 mph36 km/h
UV peak
2
Sunday, Nov 1. Snow. High 34°1°, low 20°−7°. Typical 47°8° / 34°1°. Snow 0–2 in0–5 cm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 22°−6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 33°0°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 27°−3°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 23°−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 agreeIndependent forecasts are close; the range is narrow.
High, likely
34°1°–35°2°
Low, likely
10°−12°–26°−3°
Typical high / low
47°8° / 34°1°
Wind
5 mph9 km/h, gusts 20 mph33 km/h
UV peak
3
Monday, Nov 2. Snow. High 36°2°, low 22°−6°. Typical 47°8° / 34°1°. Snow 0–2 in0–5 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 27°−3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 34°1°
  Dry
3. Evening
  6 PM–midnight
  Snow, 28°−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
31°−1°–38°3°
Low, likely
15°−9°–30°−1°
Typical high / low
47°8° / 34°1°
Wind
9 mph14 km/h, gusts 31 mph50 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 47°, low 28°.
Tomorrow
Dry, high 50°, low 27°, warming up.
Monday
Dry, high 50°, low 31°.
Rest of week
Highs 31–43°; chance of precipitation on Tuesday, 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

Swan River near Bigfork

10 mi

Below flood stage

Level: 2.3 ft
Flow: 457 cfs

Forecast peak 2.7 ft Sun 6 AM

Reading from Sat 12 PM · NWS gauge page

South Fork Flathead River above Twin Creek near Hungry Horse

12 mi

Level: 4.9 ft
Flow: 448 cfs

Reading from Sat 12:45 PM · NWS gauge page

Flathead Lake at Polson

24 mi

Level: 2892 ft

Reading from Sat 12:30 PM · NWS gauge page

For your home

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

Heating this week

About 64% less heating than a typical week.

This week 56Typical 159

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 43
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 3 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 31°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?

Bigfork 13 S · official normals 1991–2020 · records 1938–2026

Oct 24, today vs a typical year

Today’s expected high is 4°2° colder than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Swan Lake weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 22 min; Losing 3 min 17 s a day; shortest Dec 21, 1 h 59 min less
Golden hour: 5:46–6:49 PM; Morning 7:48–8:51 AM
Blue hour: 6:49–7:01 PM; Morning 7:36–7:48 AM; first light 7:36 AM

Stars tonight? Poor

Clouds most of the night (about 52% cover).

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:22 AM · rises 5:31 PM
Full moon: Oct 25
New moon: Nov 9

Looking southeast from Swan Lake. The highest point on the skyline is about 9,700 ft, 38 mi away.Skyline from USGS elevation data, heights drawn up to 2× taller. Sky, sun and moon as they are now.