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Now · 9:36 AM

Little Bitterroot Lake Weather & Hourly Forecast

United States · Montana · 59925

Sunny
53°F
Sunny
Feels like: 51°F
💧 Humidity 90% 🌡 Pressure 30.00 inHg 💨 Wind 3 mph 👁 Visibility 16.0 mi Clouds 8% ☀️ UV index 0.2 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Little Bitterroot Lake

Today
Mostly sunny · 10:00 AM Mostly sunny
56° 💧 None 💨 3 mph H 80%30.00 inHg
Partly cloudy · 1:00 PM Partly cloudy
64° 💧 0.005 in 💨 4 mph H 59%29.91 inHg
Overcast · 4:00 PM Overcast
66° 💧 0.002 in 💨 7 mph H 50%29.85 inHg
Overcast · 7:00 PM Overcast
61° 💧 None 💨 4 mph H 64%29.88 inHg
Light thunderstorms · 10:00 PM Light thunderstorms
52° 💧 0.124 in 💨 4 mph H 95%29.94 inHg
Tomorrow
Mostly cloudy night · 1:00 AM Mostly cloudy night
50° 💧 None 💨 2 mph H 97%29.88 inHg
Light rain · 4:00 AM Light rain
49° 💧 0.133 in 💨 3 mph H 97%29.88 inHg
Light rain · 7:00 AM Light rain
49° 💧 0.121 in 💨 3 mph H 98%29.85 inHg
Light rain · 10:00 AM Light rain
49° 💧 0.165 in 💨 8 mph H 97%29.91 inHg
Light rain · 1:00 PM Light rain
48° 💧 0.074 in 💨 9 mph H 95%29.97 inHg
Light rain · 4:00 PM Light rain
51° 💧 0.013 in 💨 11 mph H 84%29.97 inHg
Light rain · 7:00 PM Light rain
51° 💧 0.018 in 💨 8 mph H 79%30.00 inHg
Light rain · 10:00 PM Light rain
49° 💧 0.066 in 💨 6 mph H 90%30.06 inHg
Tuesday
Light rain · 1:00 AM Light rain
49° 💧 0.125 in 💨 4 mph H 95%30.09 inHg
Light rain · 4:00 AM Light rain
49° 💧 0.131 in 💨 4 mph H 96%30.12 inHg
Light rain · 7:00 AM Light rain
48° 💧 0.128 in 💨 4 mph H 96%30.15 inHg

In Little Bitterroot Lake and, more broadly, across the state of Montana: This morning will start with mostly cloudy skies and mild temperatures ranging from the low 50s to the mid-60s. Light north winds at around 8 mph, with gusts up to 12 mph, will be present. As the day progresses, clouds will persist, and there’s a high chance of rain with an expected accumulation of roughly 0.09 inches. Temperatures are expected to remain mild throughout the afternoon, staying within the same range as the morning. Winds will stay light, continuing from the north at similar speeds. Overall, the weather will be characterized by cloudy skies, mild temperatures, and the likelihood of light rain later in the day.

15-Day Weather Outlook for Little Bitterroot Lake

TomorrowTomorrow Light thunderstorms Light thunderstorms 64°/48° 💧 None 💨 12 mph
Tuesday, Sep 8Tue Sep 8 Overcast Overcast 61°/48° 💧 None 💨 10 mph
Wednesday, Sep 9Wed Sep 9 Mostly cloudy Mostly cloudy 66°/45° 💧 1.728 in 💨 10 mph
Thursday, Sep 10Thu Sep 10 Partly cloudy Partly cloudy 65°/48° 💧 0.005 in 💨 13 mph
Friday, Sep 11Fri Sep 11 Light rain Light rain 63°/47° 💧 0.067 in 💨 11 mph
Saturday, Sep 12Sat Sep 12 Rain and snow Rain and snow 56°/37° 💧 0.453 in 💨 16 mph
Sunday, Sep 13Sun Sep 13 Rain and snow Rain and snow 46°/32° 💧 0.189 in 💨 8 mph
Monday, Sep 14Mon Sep 14 Mostly sunny Mostly sunny 53°/38° 💧 None 💨 5 mph
Tuesday, Sep 15Tue Sep 15 Sunny Sunny 60°/43° 💧 None 💨 5 mph
Wednesday, Sep 16Wed Sep 16 Mostly sunny Mostly sunny 62°/46° 💧 None 💨 6 mph
Thursday, Sep 17Thu Sep 17 Mostly cloudy Mostly cloudy 63°/40° 💧 None 💨 7 mph
Friday, Sep 18Fri Sep 18 Mostly sunny Mostly sunny 60°/47° 💧 None 💨 6 mph
Saturday, Sep 19Sat Sep 19 Partly cloudy Partly cloudy 61°/43° 💧 None 💨 13 mph
Sunday, Sep 20Sun Sep 20 Partly cloudy Partly cloudy 62°/45° 💧 None 💨 3 mph
Monday, Sep 21Mon Sep 21 Partly cloudy Partly cloudy 68°/68° 💧 None 💨 2 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Little Bitterroot Lake

Vertical axis: °F · Color based on temperature
Mostly sunny at 10:00 AM
56° Today 10:00 AM
Mostly sunny at 11:00 AM
60° 11:00 AM
Mostly sunny at 12:00 PM
62° 12:00 PM
Partly cloudy at 1:00 PM
64° 1:00 PM
Partly cloudy at 2:00 PM
64° Today 2:00 PM
Mostly cloudy at 3:00 PM
66° 3:00 PM
Overcast at 4:00 PM
66° 4:00 PM
Mostly cloudy at 5:00 PM
64° 5:00 PM
Overcast at 6:00 PM
64° Today 6:00 PM
Overcast at 7:00 PM
61° 7:00 PM
Overcast at 8:00 PM
56° 8:00 PM
Overcast night at 9:00 PM
54° 9:00 PM
Light thunderstorms at 10:00 PM
52° Today 10:00 PM
Light thunderstorms at 11:00 PM
52° 11:00 PM
Light rain at 12:00 AM
51° 12:00 AM
Mostly cloudy night at 1:00 AM
50° 1:00 AM
Mostly cloudy night at 2:00 AM
49° Tomorrow 2:00 AM
Overcast night at 3:00 AM
49° 3:00 AM
Light rain at 4:00 AM
49° 4:00 AM
Light rain at 5:00 AM
49° 5:00 AM
Light rain at 6:00 AM
49° Tomorrow 6:00 AM
Light rain at 7:00 AM
49° 7:00 AM
Light rain at 8:00 AM
49° 8:00 AM
Light rain at 9:00 AM
49° 9:00 AM
Light rain at 10:00 AM
49° Tomorrow 10:00 AM
Light rain at 11:00 AM
48° 11:00 AM
Light rain at 12:00 PM
48° 12:00 PM
Light rain at 1:00 PM
48° 1:00 PM
Light rain at 2:00 PM
49° Tomorrow 2:00 PM
Light rain at 3:00 PM
49° 3:00 PM
Light rain at 4:00 PM
51° 4:00 PM
Overcast at 5:00 PM
52° 5:00 PM
Overcast at 6:00 PM
52° Tomorrow 6:00 PM
Light rain at 7:00 PM
51° 7:00 PM
Light rain at 8:00 PM
50° 8:00 PM
Light rain at 9:00 PM
50° 9:00 PM
Light rain at 10:00 PM
49° Tomorrow 10:00 PM
Light rain at 11:00 PM
49° 11:00 PM
Light rain at 12:00 AM
49° 12:00 AM
Light rain at 1:00 AM
49° 1:00 AM
Light rain at 2:00 AM
49° Tuesday 2:00 AM
Light rain at 3:00 AM
49° 3:00 AM
Light rain at 4:00 AM
49° 4:00 AM
Light rain at 5:00 AM
49° 5:00 AM
Light rain at 6:00 AM
48° Tuesday 6:00 AM
Light rain at 7:00 AM
48° 7:00 AM
Light rain at 8:00 AM
48° 8:00 AM
Light rain at 9:00 AM
49° 9:00 AM
Light rain at 10:00 AM
49° Tuesday 10:00 AM
Light rain at 11:00 AM
50° 11:00 AM
Overcast at 12:00 PM
52° 12:00 PM
Overcast at 1:00 PM
55° 1:00 PM
Overcast at 2:00 PM
56° Tuesday 2:00 PM
Overcast at 3:00 PM
58° 3:00 PM
Overcast at 4:00 PM
59° 4:00 PM
Overcast at 5:00 PM
61° 5:00 PM
Mostly cloudy at 6:00 PM
61° Tuesday 6:00 PM
Clear night at 3:00 AM
46° 3:00 AM
Clear night at 6:00 AM
46° 6:00 AM
Mostly sunny at 9:00 AM
51° 9:00 AM
Mostly sunny at 12:00 PM
61° Wednesday 12:00 PM
Mostly sunny at 3:00 PM
66° 3:00 PM
Mostly sunny at 6:00 PM
65° 6:00 PM
Mostly clear night at 9:00 PM
56° 9:00 PM
Mostly clear night at 12:00 AM
51° Thursday 12:00 AM
Mostly clear night at 3:00 AM
48° 3:00 AM
Mostly clear night at 6:00 AM
47° 6:00 AM
Partly cloudy at 9:00 AM
54° 9:00 AM
Mostly sunny at 12:00 PM
64° Thursday 12:00 PM
Mostly cloudy at 3:00 PM
66° 3:00 PM
Mostly sunny at 6:00 PM
65° 6:00 PM
Mostly clear night at 9:00 PM
55° 9:00 PM
Mostly clear night at 12:00 AM
49° Friday 12:00 AM
Mostly clear night at 3:00 AM
47° 3:00 AM
Light rain at 6:00 AM
43° 6:00 AM
Mostly sunny at 9:00 AM
47° 9:00 AM
Overcast at 12:00 PM
57° Friday 12:00 PM
Light rain at 3:00 PM
57° 3:00 PM
Overcast at 6:00 PM
56° 6:00 PM
Overcast night at 9:00 PM
48° 9:00 PM
Overcast night at 12:00 AM
47° Saturday 12:00 AM
Overcast night at 6:00 AM
47° 6:00 AM
Light rain at 12:00 PM
41° 12:00 PM
Rain and snow at 6:00 PM
37° 6:00 PM
Light rain at 12:00 AM
39° Sunday 12:00 AM
Rain and snow at 6:00 AM
36° 6:00 AM
Mostly cloudy at 12:00 PM
32° 12:00 PM
Partly cloudy at 6:00 PM
46° 6:00 PM
Clear night at 12:00 AM
51° Monday 12:00 AM
Clear night at 6:00 AM
38° 6:00 AM
Mostly sunny at 12:00 PM
38° 12:00 PM
Sunny at 6:00 PM
53° 6:00 PM
Clear night at 12:00 AM
58° Tuesday 12:00 AM
Clear night at 6:00 AM
46° 6:00 AM
Sunny at 12:00 PM
43° 12:00 PM
Sunny at 6:00 PM
60° 6:00 PM
Mostly clear night at 12:00 AM
62° Wednesday 12:00 AM
Partly cloudy night at 6:00 AM
50° 6:00 AM
Mostly sunny at 12:00 PM
46° 12:00 PM
Sunny at 6:00 PM
60° 6:00 PM
Clear night at 12:00 AM
63° Thursday 12:00 AM
Clear night at 6:00 AM
43° 6:00 AM
Mostly cloudy at 12:00 PM
40° 12:00 PM
Sunny at 6:00 PM
57° 6:00 PM
Mostly clear night at 12:00 AM
60° Friday 12:00 AM
Mostly cloudy night at 6:00 AM
49° 6:00 AM
Mostly cloudy at 12:00 PM
47° 12:00 PM
Mostly sunny at 6:00 PM
60° 6:00 PM
Partly cloudy night at 12:00 AM
61° Saturday 12:00 AM
Overcast night at 6:00 AM
50° 6:00 AM
Mostly sunny at 12:00 PM
43° 12:00 PM
Sunny at 6:00 PM
54° 6:00 PM
Clear night at 12:00 AM
60° Sunday 12:00 AM
Clear night at 6:00 AM
47° 6:00 AM
Sunny at 12:00 PM
45° 12:00 PM
Partly cloudy at 6:00 PM
62° 6:00 PM
Partly cloudy night at 12:00 AM
68° Monday 12:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Little Bitterroot Lake

Hourly forecast · Updated every 2 hours
Good
Nearest forecast value 10:00 AM
PM2.5 Fine particles Good 0,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 0,5µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 25,2µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Little Bitterroot Lake

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 3,5Moderate 😊Good
Tomorrow UV 0,5Low 🙂Fair
Tuesday UV 3,9Moderate 🙂Fair
Wednesday UV 5,8Moderate 🙂Fair
Thursday UV 6,0High 😊Good
Friday UV 4,0Moderate Unavailable
Saturday UV 5,0Moderate Unavailable
Hourly UV index today
10:00 AMUV 1,6 11:00 AMUV 3,0 12:00 PMUV 3,5 1:00 PMUV 3,2 2:00 PMUV 2,9 3:00 PMUV 3,1 4:00 PMUV 3,0 5:00 PMUV 1,8 6:00 PMUV 0,4 7:00 PMUV 0,1
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Little Bitterroot Lake

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 10:00 AM 11:00 AM 12:00 PM 1:00 PM Today 2:00 PM 3:00 PM 4:00 PM 5:00 PM Today 6:00 PM 7:00 PM 8:00 PM 9:00 PM Today 10:00 PM 11:00 PM 12:00 AM 1:00 AM Tomorrow 2:00 AM 3:00 AM 4:00 AM 5:00 AM Tomorrow 6:00 AM 7:00 AM 8:00 AM 9:00 AM Tomorrow 10:00 AM 11:00 AM 12:00 PM 1:00 PM Tomorrow 2:00 PM 3:00 PM 4:00 PM 5:00 PM Tomorrow 6:00 PM 7:00 PM 8:00 PM 9:00 PM Tomorrow 10:00 PM 11:00 PM 12:00 AM 1:00 AM Tuesday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Tuesday 6:00 AM 7:00 AM 8:00 AM 9:00 AM Tuesday 10:00 AM 11:00 AM 12:00 PM 1:00 PM Tuesday 2:00 PM 3:00 PM 4:00 PM 5:00 PM Tuesday 6:00 PM 3:00 AM 6:00 AM 9:00 AM Wednesday 12:00 PM 3:00 PM 6:00 PM 9:00 PM Thursday 12:00 AM 3:00 AM 6:00 AM 9:00 AM Thursday 12:00 PM 3:00 PM 6:00 PM 9:00 PM Friday 12:00 AM 3:00 AM 6:00 AM 9:00 AM Friday 12:00 PM 3:00 PM 6:00 PM 9:00 PM Saturday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Sunday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Monday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Tuesday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Wednesday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Thursday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Friday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Saturday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Sunday 12:00 AM 6:00 AM 12:00 PM 6:00 PM Monday 12:00 AM
Sustained wind Max gusts
NIGHT SKY · LITTLE BITTERROOT LAKE, MONTANA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

40/100Best-hour score
No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.
Cloud cover 76% Real hourly forecast for the best viewing hour.
Moonlight 22% Waning Crescent · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 40° high at the best hour.
Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.
Chance ≥1 meteor in 30 minNot meaningful
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Little Bitterroot Lake were last refreshed today at 8:47 AM. The current forecast period extends through 08/09/2026 at 7:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.