Observed 4:50 PM MDT at KMSO

Bonner-West Riverside, MT weather

Sunny and 50°10°.

Mostly agree

Now 50°10°

Sunny

Wind: 3 mph5 km/h; From the east-southeast. Up to 7 mph11 km/h through 5 AM
Dew point: 34°1°; Dry, static shocks likely
UV tomorrow: 3Moderate; Moderate 12–4 PM · peak 3
Air quality: 28Good; Main pollutant: Ozone
Pressure: 30.16 inHg1021 hPa; Falling · −0.06 inHg−2.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 32°0° tomorrow at 8 AM
Above 40°4° tomorrow by 11 AM
Below 40°4° tomorrow night after 8 PM
Below freezing tomorrow night 3–10 AM (low 30°−1°)

TonightDown to 34°1° by 3 AM · Partly cloudy
Tomorrow morningUp to 43°6° by 11 AM · freezing, low 32°0° · Partly cloudy
Tomorrow afternoonUp to 51°11° by 4 PM · Mostly cloudy
Tomorrow nightDown to 32°0° by 3 AM · freezing, low 32°0° · Mostly cloudy
Monday morningUp to 42°6° by 11 AM · freezing, low 30°−1° · Partly cloudy
Monday afternoonUp to 54°12° by 3 PM · rain chance 10% · 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 5p	Partly sunny	52°11° (likely 49°9° to 52°11°)	52°11°	0%	1 mph2 km/h from ESE, gusts 3 mph5 km/h	60%	32%	1
Sat 6p	Partly sunny	48°9° (likely 46°8° to 49°9°)	48°9°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	70%	52%	1
Sat 7p	Clear	45°7° (likely 42°6° to 45°7°)	45°7°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	78%	31%	0
Sat 8p	Mostly cloudy	42°6° (likely 39°4° to 43°6°)	42°6°	0%	2 mph3 km/h from E, gusts 9 mph14 km/h	87%	67%	0
Sat 9p	Partly cloudy	40°4° (likely 38°3° to 42°6°)	38°3°	0%	3 mph5 km/h from E, gusts 9 mph15 km/h	87%	29%	0
Sat 10p	Partly cloudy	40°4° (likely 37°3° to 41°5°)	37°3°	0%	5 mph8 km/h from E, gusts 10 mph17 km/h	87%	29%	0
Sat 11p	Partly cloudy	39°4° (likely 36°2° to 41°5°)	36°2°	0%	5 mph8 km/h from E, gusts 10 mph15 km/h	87%	23%	0
Sun 12a	Clear	39°4° (likely 35°2° to 41°5°)	36°2°	0%	5 mph8 km/h from E, gusts 9 mph15 km/h	88%	16%	0
Sun 1a	Partly cloudy	37°3° (likely 35°2° to 40°4°)	32°0°	0%	6 mph10 km/h from E, gusts 9 mph14 km/h	91%	20%	0
Sun 2a	Clear	36°2° (likely 34°1° to 40°4°)	31°−1°	0%	6 mph10 km/h from E, gusts 10 mph16 km/h	94%	5%	0
Sun 3a	Clear	34°1° (likely 33°1° to 40°4°)	29°−2°	0%	6 mph10 km/h from E, gusts 10 mph17 km/h	98%	3%	0
Sun 4a	Clear	35°2° (likely 33°1° to 40°4°)	29°−2°	0%	7 mph11 km/h from E, gusts 11 mph17 km/h	94%	30%	0
Sun 5a	Mostly clear	34°1° (likely 32°0° to 40°4°)	28°−2°	0%	7 mph11 km/h from E, gusts 11 mph18 km/h	94%	32%	0
Sun 6a	Mostly clear	34°1° (likely 31°−1° to 39°4°)	27°−3°	0%	8 mph13 km/h from E, gusts 12 mph19 km/h	93%	19%	0
Sun 7a	Mostly clear	33°1° (likely 31°−1° to 40°4°)	25°−4°	0%	9 mph14 km/h from E, gusts 12 mph20 km/h	98%	27%	0
Sun 8a	Sunny	32°0° (likely 31°−1° to 40°4°)	24°−4°	0%	9 mph14 km/h from E, gusts 13 mph21 km/h	96%	10%	0
Sun 9a	Mostly sunny	33°1° (likely 32°0° to 40°4°)	25°−4°	0%	10 mph16 km/h from E, gusts 13 mph22 km/h	91%	19%	0
Sun 10a	Mostly sunny	39°4° (likely 36°2° to 45°7°)	32°0°	0%	10 mph16 km/h from E, gusts 22 mph35 km/h	82%	31%	1
Sun 11a	Partly sunny	43°6° (likely 39°4° to 48°9°)	38°3°	0%	9 mph14 km/h from E, gusts 23 mph37 km/h	72%	51%	2
Sun 12p	Partly sunny	46°8° (likely 42°6° to 51°11°)	41°5°	0%	9 mph14 km/h from E, gusts 23 mph36 km/h	66%	61%	3
Sun 1p	Partly sunny	48°9° (likely 45°7° to 53°12°)	45°7°	0%	7 mph11 km/h from E, gusts 23 mph36 km/h	63%	63%	3
Sun 2p	Partly sunny	50°10° (likely 48°9° to 55°13°)	47°8°	0%	7 mph11 km/h from E, gusts 22 mph36 km/h	60%	68%	3
Sun 3p	Partly sunny	50°10° (likely 49°9° to 55°13°)	48°9°	0%	6 mph10 km/h from E, gusts 21 mph34 km/h	57%	69%	3
Sun 4p	Cloudy	51°11° (likely 49°9° to 55°13°)	51°11°	0%	6 mph10 km/h from E, gusts 21 mph33 km/h	56%	72%	2
Sun 5p	Partly sunny	50°10° (likely 48°9° to 53°12°)	48°9°	0%	6 mph10 km/h from E, gusts 21 mph34 km/h	56%	71%	1
Sun 6p	Cloudy	46°8° (likely 45°7° to 51°11°)	43°6°	0%	6 mph10 km/h from E, gusts 21 mph34 km/h	67%	77%	1
Sun 7p	Cloudy	43°6° (likely 41°5° to 47°8°)	39°4°	0%	6 mph10 km/h from E, gusts 17 mph27 km/h	76%	75%	0
Sun 8p	Cloudy	38°3° (likely 38°3° to 46°8°)	34°1°	0%	6 mph10 km/h from E, gusts 18 mph29 km/h	84%	74%	0
Sun 9p	Cloudy	37°3° (likely 37°3° to 45°7°)	30°−1°	0%	9 mph14 km/h from E, gusts 15 mph24 km/h	85%	73%	0
Sun 10p	Cloudy	38°3° (likely 36°2° to 44°7°)	32°0°	0%	9 mph14 km/h from E, gusts 18 mph28 km/h	84%	73%	0
Sun 11p	Cloudy	37°3° (likely 35°2° to 44°7°)	30°−1°	0%	9 mph14 km/h from E, gusts 17 mph27 km/h	85%	75%	0
Mon 12a	Mostly cloudy	37°3° (likely 34°1° to 43°6°)	30°−1°	0%	9 mph14 km/h from E, gusts 14 mph23 km/h	85%	55%	0
Mon 1a	Cloudy	35°2° (likely 34°1° to 42°6°)	28°−2°	0%	9 mph14 km/h from E, gusts 14 mph22 km/h	87%	77%	0
Mon 2a	Cloudy	34°1° (likely 33°1° to 41°5°)	27°−3°	0%	9 mph14 km/h from E, gusts 13 mph21 km/h	89%	77%	0
Mon 3a	Mostly cloudy	32°0° (likely 32°0° to 41°5°)	26°−3°	0%	7 mph11 km/h from E, gusts 12 mph19 km/h	94%	67%	0
Mon 4a	Clear	32°0° (likely 32°0° to 40°4°)	26°−3°	0%	7 mph11 km/h from E, gusts 12 mph19 km/h	91%	22%	0
Mon 5a	Clear	32°0° (likely 32°0° to 40°4°)	26°−3°	0%	7 mph11 km/h from E, gusts 11 mph18 km/h	91%	35%	0
Mon 6a	Cloudy	31°−1° (likely 31°−1° to 40°4°)	24°−4°	0%	7 mph11 km/h from E, gusts 11 mph18 km/h	91%	25%	0
Mon 7a	Cloudy	30°−1° (likely 30°−1° to 40°4°)	23°−5°	0%	7 mph11 km/h from E, gusts 11 mph18 km/h	95%	34%	0
Mon 8a	Cloudy	30°−1° (likely 30°−1° to 40°4°)	23°−5°	0%	7 mph11 km/h from E, gusts 10 mph17 km/h	95%	42%	0
Mon 9a	Mostly sunny	31°−1° (likely 31°−1° to 41°5°)	25°−4°	0%	6 mph10 km/h from E, gusts 10 mph16 km/h	90%	60%	0
Mon 10a	Partly sunny	36°2° (likely 36°2° to 45°7°)	31°−1°	0%	6 mph10 km/h from E, gusts 12 mph19 km/h	82%	66%	1
Mon 11a	Cloudy	42°6° (likely 42°6° to 49°9°)	38°3°	0%	6 mph10 km/h from E, gusts 12 mph19 km/h	72%	86%	2
Mon 12p	Cloudy	48°9° (likely 47°8° to 52°11°)	46°8°	10%	5 mph8 km/h from E, gusts 10 mph16 km/h	63%	87%	2
Mon 1p	Partly sunny	51°11° (likely 48°9° to 53°12°)	51°11°	10%	5 mph8 km/h from E, gusts 7 mph12 km/h	58%	80%	3
Mon 2p	Partly sunny	53°12° (likely 50°10° to 55°13°)	53°12°	10%	5 mph8 km/h from E, gusts 7 mph10 km/h	56%	75%	3
Mon 3p	Partly sunny	54°12° (likely 51°11° to 56°13°)	54°12°	10%	3 mph5 km/h from E, gusts 6 mph9 km/h	57%	70%	2
Mon 4p	Partly sunny	53°12° (likely 51°11° to 54°12°)	53°12°	10%	3 mph5 km/h from E, gusts 5 mph8 km/h	61%	71%	1

Days ahead

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

Today, Oct 24. Cloudy. High 52°11°, low 32°0°. Typical 51°11° / 30°−1°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Partly cloudy, 42°6°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 52. East southeast wind around 1 mph.
Tonight: Partly cloudy, with a low around 32. East wind 1 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
49°9°–52°11°
Low, likely
32°0°–36°2°
Typical high / low
51°11° / 30°−1°
Wind
8 mph13 km/h, gusts 15 mph24 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 51°11°, low 29°−2°. Typical 50°10° / 30°−1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 51°11°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Mostly cloudy, 32°0°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 51. East wind 6 to 10 mph.
Night: Mostly cloudy, with a low around 29. East wind 6 to 9 mph, with gusts as high as 18 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
49°9°–55°13°
Low, likely
29°−2°–39°4°
Typical high / low
50°10° / 30°−1°
Wind
15 mph25 km/h, gusts 25 mph41 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 54°12°, low 33°1°. Typical 50°10° / 29°−2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 30°−1°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 44°7°
  70% chance · 0.1 in0.3 cm
4. Overnight
  midnight–6 AM
  Snow, 40°5°
  80% chance · 0.5 in1.2 cm
Official NWS forecast
Day: Partly sunny, with a high near 54. East wind 3 to 7 mph.
Night: Rain. Cloudy, with a low around 33. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
50°10°–55°13°
Low, likely
31°−1°–39°4°
Typical high / low
50°10° / 29°−2°
Wind
12 mph19 km/h, gusts 17 mph27 km/h
UV peak
3
Tuesday, Oct 27. Snow. High 46°8°, low 31°−1°. Typical 49°9° / 29°−2°. Snow 0–2 in0–5 cm, 80% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 39°4°
  80% chance · 0.2 in0.4 cm
2. Afternoon
  noon–6 PM
  Drizzle, 45°7°
  70% chance · 0.07 in1.7 mm
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  60% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Cloudy, 37°3°
  30% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain and snow. Mostly cloudy, with a high near 46. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A slight chance of rain between midnight and 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 31.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
41°5°–47°8°
Low, likely
31°−1°–39°4°
Typical high / low
49°9° / 29°−2°
Wind
15 mph24 km/h, gusts 35 mph56 km/h
UV peak
1
Wednesday, Oct 28. Snow. High 48°9°, low 29°−2°. Typical 49°9° / 29°−2°. Snow 0.04 in1 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 36°2°
  20% chance
2. Afternoon
  noon–6 PM
  Sunny, 49°9°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 36°2°
  20% chance · 0.01 in0.3 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 48.
Night: A chance of rain before midnight, then a slight chance of rain and snow. Partly cloudy, with a low around 29.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
44°7°–50°10°
Low, likely
29°−2°–38°3°
Typical high / low
49°9° / 29°−2°
Wind
8 mph12 km/h, gusts 17 mph27 km/h
UV peak
3
Thursday, Oct 29. Snow. High 48°9°, low 28°−2°. Typical 48°9° / 28°−2°. Snow 0–5 in0–13 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 36°2°
  30% chance · 0.3 in0.8 cm
2. Afternoon
  noon–6 PM
  Partly sunny, 48°9°
  30% chance · 0.4 in1.1 cm
3. Evening
  6 PM–midnight
  Cloudy, 41°5°
  40% chance · 0.4 in1 cm
4. Overnight
  midnight–6 AM
  Cloudy, 36°2°
  40% 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, then a slight chance of rain and snow. Partly sunny, 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 28.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
42°6°–53°12°
Low, likely
28°−2°–37°3°
Typical high / low
48°9° / 28°−2°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
3
Friday, Oct 30. Snow. High 47°8°, low 26°−3°. Typical 48°9° / 28°−2°. Snow 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 36°2°
  30% chance
2. Afternoon
  noon–6 PM
  Drizzle, 43°6°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Cloudy, 37°3°
  30% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 33°0°
  20% chance
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. Partly sunny, with a high near 47. Little or no snow accumulation expected.
Night: A chance of rain and snow. Mostly cloudy, with a low around 26. New snow accumulation of less than half an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
40°4°–48°9°
Low, likely
26°−3°–37°3°
Typical high / low
48°9° / 28°−2°
Wind
6 mph10 km/h, gusts 17 mph27 km/h
UV peak
2
Saturday, Oct 31. Snow. High 40°4°, low 30°−1°. Typical 47°8° / 28°−2°. Snow < 1 in< 2 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Fog, 32°0°
  20% chance
2. Afternoon
  noon–6 PM
  Partly sunny, 40°4°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 35°2°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 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
36°2°–44°7°
Low, likely
27°−3°–38°3°
Typical high / low
47°8° / 28°−2°
Wind
14 mph22 km/h
UV peak
2
Sunday, Nov 1. Snow. High 42°6°, low 29°−2°. Typical 46°8° / 28°−2°. Snow 0–2 in0–5 cm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Snow, 31°0°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 43°6°
  Dry
3. Evening
  6 PM–midnight
  Clear, 38°3°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 35°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°–47°8°
Low, likely
26°−3°–35°2°
Typical high / low
46°8° / 28°−2°
Wind
5 mph7 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 42°6°, low 32°0°. Typical 46°8° / 28°−2°. 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, 38°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
39°4°–47°8°
Low, likely
28°−2°–37°3°
Typical high / low
46°8° / 28°−2°
Wind
9 mph14 km/h, gusts 38 mph61 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 52°, low 32°.
Tomorrow
Dry, high 51°, low 29°.
Monday
Dry, high 54°, low 33°, warming up.
Rest of week
Highs 40–48°; chance of precipitation on Tuesday.

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

Clark Fork River above Missoula

2.0 mi

Below flood stage

Level: 3.0 ft
Flow: 1,960 cfs

Forecast peak 3.1 ft Sun 12 PM

Reading from Sat 3 PM · NWS gauge page

Blackfoot River near Bonner

6.4 mi

Below flood stage

Level: 2.3 ft
Flow: 727 cfs

Forecast peak 2.4 ft Sun 6 AM

Reading from Sat 3:30 PM · NWS gauge page

Bitterroot River near Missoula

8.5 mi

Below flood stage

Level: 3.4 ft
Flow: 899 cfs

Forecast peak 3.5 ft Sun 6 PM

Reading from Sat 3 PM · NWS gauge page

Clark Fork River below Missoula

11 mi

Below flood stage

Level: 1.4 ft
Flow: 2,700 cfs

Forecast peak 1.6 ft Sun 6 PM

Reading from Sat 3 PM · NWS gauge page

For your home

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

Heating this week

About 73% less heating than a typical week.

This week 49Typical 181

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 36
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 30 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 34°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?

Missoula International Airport · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 6°3° warmer than normal (daily mean temperature).

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

Bonner-West Riverside weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 26 min; Losing 3 min 12 s a day; shortest Dec 21, 1 h 54 min less
Golden hour: 5:49–6:51 PM; Morning 7:47–8:49 AM
Blue hour: 6:51–7:03 PM; Morning 7:35–7:47 AM; first light 7:35 AM

Stars tonight? Fair

Mostly clear 11 PM–4 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:21 AM · rises 5:33 PM
Full moon: Oct 25
New moon: Nov 9

Looking northeast from Bonner-West Riverside. The highest point on the skyline is about 6,100 ft, 2 mi away.Skyline from USGS elevation data. Sky, sun and moon as they are now.

Bonner-West Riverside, MT weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Clark Fork River above Missoula

Blackfoot River near Bonner

Bitterroot River near Missoula

Clark Fork River below Missoula

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? Fair

Moon