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Now · 11:10 AM

Harlem Weather & Hourly Forecast

United States · Montana · 59526

Mostly cloudy
68°F
Mostly cloudy
Feels like: 60°F
💧 Humidity 44% 🌡 Pressure 30.09 inHg 💨 Wind 12 mph 👁 Visibility 32.2 mi Clouds 69% ☀️ UV index 1.7 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Harlem

Today
Sunny · 12:00 PM Sunny
70° 💧 None 💨 13 mph H 41%30.09 inHg
Sunny · 3:00 PM Sunny
74° 💧 None 💨 13 mph H 36%30.00 inHg
Sunny · 6:00 PM Sunny
74° 💧 None 💨 8 mph H 38%29.94 inHg
Clear night · 9:00 PM Clear night
64° 💧 None 💨 7 mph H 48%29.91 inHg
Tomorrow
Partly cloudy night · 12:00 AM Partly cloudy night
61° 💧 None 💨 6 mph H 52%29.91 inHg
Mostly clear night · 3:00 AM Mostly clear night
57° 💧 None 💨 2 mph H 58%29.83 inHg
Mostly cloudy night · 6:00 AM Mostly cloudy night
55° 💧 None 💨 0 mph H 60%29.80 inHg
Partly cloudy · 9:00 AM Partly cloudy
63° 💧 None 💨 2 mph H 52%29.77 inHg
Mostly cloudy · 12:00 PM Mostly cloudy
77° 💧 0.000 in 💨 20 mph H 28%29.71 inHg
Partly cloudy · 3:00 PM Partly cloudy
80° 💧 None 💨 19 mph H 31%29.65 inHg
Partly cloudy · 6:00 PM Partly cloudy
78° 💧 None 💨 13 mph H 34%29.62 inHg
Mostly cloudy night · 9:00 PM Mostly cloudy night
66° 💧 None 💨 5 mph H 56%29.68 inHg
Friday
Overcast night · 12:00 AM Overcast night
59° 💧 None 💨 3 mph H 78%29.77 inHg
Overcast night · 3:00 AM Overcast night
56° 💧 0.006 in 💨 2 mph H 83%29.80 inHg
Light rain · 6:00 AM Light rain
55° 💧 0.109 in 💨 4 mph H 87%29.83 inHg
Light rain · 9:00 AM Light rain
53° 💧 0.081 in 💨 3 mph H 87%29.88 inHg

In Harlem and, more broadly, across the state of Montana: Skies will remain clear through the afternoon, with mild temperatures ranging from 55 to 69 degrees. Winds will be coming from the west at a steady 16 mph, with gusts reaching up to 34 mph. No precipitation is expected, so conditions will be dry and pleasant. The moderate wind could cause some breezy moments, especially in open areas. Overall, it will be a comfortable day with plenty of sunshine and no weather-related disruptions. As the day progresses, temperatures will gradually stay within the mild range, making for good outdoor conditions. Remember to stay hydrated and be cautious of the gusty winds if you're planning to be outside.

15-Day Weather Outlook for Harlem

TomorrowTomorrow Partly cloudy Partly cloudy 80°/55° 💧 None 💨 20 mph
Friday, Sep 11Fri Sep 11 Partly cloudy Partly cloudy 78°/53° 💧 None 💨 13 mph
Saturday, Sep 12Sat Sep 12 Mostly cloudy Mostly cloudy 59°/46° 💧 0.136 in 💨 12 mph
Sunday, Sep 13Sun Sep 13 Moderate rain Moderate rain 59°/48° 💧 0.443 in 💨 17 mph
Monday, Sep 14Mon Sep 14 Moderate rain Moderate rain 56°/45° 💧 0.353 in 💨 13 mph
Tuesday, Sep 15Tue Sep 15 Sunny Sunny 57°/40° 💧 0.289 in 💨 6 mph
Wednesday, Sep 16Wed Sep 16 Partly cloudy Partly cloudy 68°/46° 💧 None 💨 12 mph
Thursday, Sep 17Thu Sep 17 Overcast Overcast 67°/48° 💧 0.009 in 💨 11 mph
Friday, Sep 18Fri Sep 18 Mostly cloudy Mostly cloudy 61°/48° 💧 0.001 in 💨 8 mph
Saturday, Sep 19Sat Sep 19 Overcast Overcast 72°/55° 💧 0.556 in 💨 21 mph
Sunday, Sep 20Sun Sep 20 Mostly sunny Mostly sunny 68°/47° 💧 None 💨 18 mph
Monday, Sep 21Mon Sep 21 Mostly sunny Mostly sunny 66°/49° 💧 0.006 in 💨 7 mph
Tuesday, Sep 22Tue Sep 22 Overcast Overcast 66°/51° 💧 None 💨 12 mph
Wednesday, Sep 23Wed Sep 23 Mostly cloudy Mostly cloudy 62°/50° 💧 None 💨 11 mph
Thursday, Sep 24Thu Sep 24 Mostly sunny Mostly sunny 65°/65° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Harlem

Vertical axis: °F · Color based on temperature
Sunny at 12:00 PM
70° Today 12:00 PM
Mostly sunny at 1:00 PM
71° 1:00 PM
Mostly sunny at 2:00 PM
73° 2:00 PM
Sunny at 3:00 PM
74° 3:00 PM
Partly cloudy at 4:00 PM
74° Today 4:00 PM
Sunny at 5:00 PM
74° 5:00 PM
Sunny at 6:00 PM
74° 6:00 PM
Sunny at 7:00 PM
69° 7:00 PM
Clear night at 8:00 PM
65° Today 8:00 PM
Clear night at 9:00 PM
64° 9:00 PM
Partly cloudy night at 10:00 PM
63° 10:00 PM
Partly cloudy night at 11:00 PM
62° 11:00 PM
Partly cloudy night at 12:00 AM
61° Tomorrow 12:00 AM
Partly cloudy night at 1:00 AM
60° 1:00 AM
Mostly clear night at 2:00 AM
58° 2:00 AM
Mostly clear night at 3:00 AM
57° 3:00 AM
Mostly clear night at 4:00 AM
57° Tomorrow 4:00 AM
Mostly clear night at 5:00 AM
56° 5:00 AM
Mostly cloudy night at 6:00 AM
55° 6:00 AM
Mostly cloudy at 7:00 AM
55° 7:00 AM
Mostly cloudy at 8:00 AM
58° Tomorrow 8:00 AM
Partly cloudy at 9:00 AM
63° 9:00 AM
Partly cloudy at 10:00 AM
69° 10:00 AM
Partly cloudy at 11:00 AM
76° 11:00 AM
Mostly cloudy at 12:00 PM
77° Tomorrow 12:00 PM
Partly cloudy at 1:00 PM
78° 1:00 PM
Partly cloudy at 2:00 PM
78° 2:00 PM
Partly cloudy at 3:00 PM
80° 3:00 PM
Partly cloudy at 4:00 PM
80° Tomorrow 4:00 PM
Partly cloudy at 5:00 PM
80° 5:00 PM
Partly cloudy at 6:00 PM
78° 6:00 PM
Partly cloudy at 7:00 PM
74° 7:00 PM
Partly cloudy night at 8:00 PM
70° Tomorrow 8:00 PM
Mostly cloudy night at 9:00 PM
66° 9:00 PM
Mostly cloudy night at 10:00 PM
63° 10:00 PM
Mostly cloudy night at 11:00 PM
60° 11:00 PM
Overcast night at 12:00 AM
59° Friday 12:00 AM
Overcast night at 1:00 AM
58° 1:00 AM
Overcast night at 2:00 AM
57° 2:00 AM
Overcast night at 3:00 AM
56° 3:00 AM
Overcast night at 4:00 AM
56° Friday 4:00 AM
Light rain at 5:00 AM
56° 5:00 AM
Light rain at 6:00 AM
55° 6:00 AM
Light rain at 7:00 AM
54° 7:00 AM
Light rain at 8:00 AM
53° Friday 8:00 AM
Light rain at 9:00 AM
53° 9:00 AM
Light rain at 10:00 AM
53° 10:00 AM
Light rain at 11:00 AM
54° 11:00 AM
Mostly cloudy at 12:00 PM
57° Friday 12:00 PM
Overcast at 1:00 PM
58° 1:00 PM
Light rain at 2:00 PM
57° 2:00 PM
Overcast at 3:00 PM
59° 3:00 PM
Mostly cloudy at 4:00 PM
57° Friday 4:00 PM
Partly cloudy at 5:00 PM
58° 5:00 PM
Mostly cloudy at 6:00 PM
59° 6:00 PM
Overcast night at 3:00 AM
47° 3:00 AM
Overcast night at 6:00 AM
46° Saturday 6:00 AM
Overcast at 9:00 AM
51° 9:00 AM
Overcast at 12:00 PM
58° 12:00 PM
Overcast at 3:00 PM
59° 3:00 PM
Overcast at 6:00 PM
59° Saturday 6:00 PM
Overcast night at 9:00 PM
57° 9:00 PM
Light rain at 12:00 AM
51° 12:00 AM
Moderate rain at 3:00 AM
48° 3:00 AM
Overcast night at 6:00 AM
48° Sunday 6:00 AM
Light rain at 9:00 AM
48° 9:00 AM
Light rain at 12:00 PM
48° 12:00 PM
Moderate rain at 3:00 PM
48° 3:00 PM
Moderate rain at 6:00 PM
47° Sunday 6:00 PM
Overcast night at 9:00 PM
46° 9:00 PM
Light rain at 12:00 AM
46° 12:00 AM
Overcast night at 3:00 AM
46° 3:00 AM
Overcast night at 6:00 AM
45° Monday 6:00 AM
Mostly cloudy at 9:00 AM
47° 9:00 AM
Overcast at 12:00 PM
52° 12:00 PM
Overcast at 3:00 PM
56° 3:00 PM
Sunny at 6:00 PM
57° Monday 6:00 PM
Clear night at 9:00 PM
47° 9:00 PM
Clear night at 12:00 AM
44° 12:00 AM
Clear night at 6:00 AM
45° 6:00 AM
Sunny at 12:00 PM
40° Tuesday 12:00 PM
Sunny at 6:00 PM
62° 6:00 PM
Partly cloudy night at 12:00 AM
68° 12:00 AM
Mostly clear night at 6:00 AM
52° 6:00 AM
Partly cloudy at 12:00 PM
46° Wednesday 12:00 PM
Partly cloudy at 6:00 PM
65° 6:00 PM
Mostly cloudy night at 12:00 AM
67° 12:00 AM
Overcast night at 6:00 AM
53° 6:00 AM
Overcast at 12:00 PM
48° Thursday 12:00 PM
Mostly cloudy at 6:00 PM
56° 6:00 PM
Clear night at 12:00 AM
61° 12:00 AM
Clear night at 6:00 AM
52° 6:00 AM
Partly cloudy at 12:00 PM
48° Friday 12:00 PM
Mostly cloudy at 6:00 PM
62° 6:00 PM
Overcast night at 12:00 AM
72° 12:00 AM
Partly cloudy night at 6:00 AM
58° 6:00 AM
Mostly cloudy at 12:00 PM
55° Saturday 12:00 PM
Sunny at 6:00 PM
66° 6:00 PM
Clear night at 12:00 AM
68° 12:00 AM
Mostly clear night at 6:00 AM
51° 6:00 AM
Sunny at 12:00 PM
47° Sunday 12:00 PM
Sunny at 6:00 PM
64° 6:00 PM
Mostly clear night at 12:00 AM
66° 12:00 AM
Mostly cloudy night at 6:00 AM
52° 6:00 AM
Partly cloudy at 12:00 PM
49° Monday 12:00 PM
Partly cloudy at 6:00 PM
66° 6:00 PM
Mostly cloudy night at 12:00 AM
65° 12:00 AM
Overcast night at 6:00 AM
52° 6:00 AM
Overcast at 12:00 PM
51° Tuesday 12:00 PM
Mostly cloudy at 6:00 PM
59° 6:00 PM
Mostly clear night at 12:00 AM
62° 12:00 AM
Mostly clear night at 6:00 AM
53° 6:00 AM
Sunny at 12:00 PM
50° Wednesday 12:00 PM
Mostly sunny at 6:00 PM
65° 6:00 PM
Partly cloudy night at 12:00 AM
65° 12:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Harlem

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 12:00 PM
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 0,8µg/m³

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

O₃ Ozone Fair 81,7µg/m³

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

NO₂ Nitrogen dioxide Good 0,3µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Harlem

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 4,8Moderate 🙂Fair
Tomorrow UV 5,5Moderate 😐Moderate
Friday UV 4,4Moderate 🙂Fair
Saturday UV 2,5Low 😊Good
Sunday UV 2,0Low 😊Good
Monday UV 4,0Moderate Unavailable
Tuesday UV 4,0Moderate Unavailable
Hourly UV index today
12:00 PMUV 4,2 1:00 PMUV 4,6 2:00 PMUV 4,8 3:00 PMUV 4,0 4:00 PMUV 2,7 5:00 PMUV 1,5 6:00 PMUV 0,5 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.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 Harlem

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

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

88/100Best-hour score
BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 9:31 PM–4:55 AM
Cloud cover 16% Real hourly forecast for the best viewing hour.
Moonlight 2% New Moon · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 66° high at the best hour.
Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min74%
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 Harlem were last refreshed today at 10:56 AM. The current forecast period extends through 11/09/2026 at 9:00 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.