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Now · 10:36 PM

Sylvanite Weather & Hourly Forecast

United States · Montana · 59935

Overcast night
51°F
Overcast night
Feels like: 50°F
💧 Humidity 88% 🌡 Pressure 29.74 inHg 💨 Wind 3 mph 👁 Visibility 6.2 mi Clouds 92% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:02 AM 🌇 Sunset 8:24 PM

Hourly Forecast for Sylvanite

Today
Overcast night · 11:00 PM Overcast night
51° 💧 None 💨 3 mph H 88%29.74 inHg
Tomorrow
Overcast night · 2:00 AM Overcast night
48° 💧 None 💨 2 mph H 92%29.74 inHg
Light rain · 5:00 AM Light rain
47° 💧 0.02 in 💨 2 mph H 99%29.74 inHg
Light rain · 8:00 AM Light rain
46° 💧 0.02 in 💨 3 mph H 98%29.77 inHg
Light rain · 11:00 AM Light rain
47° 💧 0.03 in 💨 5 mph H 96%29.83 inHg
Mostly cloudy · 2:00 PM Mostly cloudy
54° 💧 None 💨 5 mph H 51%29.80 inHg
Mostly cloudy · 5:00 PM Mostly cloudy
57° 💧 None 💨 5 mph H 38%29.77 inHg
Mostly cloudy · 8:00 PM Mostly cloudy
50° 💧 None 💨 3 mph H 51%29.80 inHg
Partly cloudy night · 11:00 PM Partly cloudy night
45° 💧 None 💨 3 mph H 69%29.83 inHg
Friday
Overcast night · 2:00 AM Overcast night
46° 💧 None 💨 2 mph H 65%29.77 inHg
Overcast night · 5:00 AM Overcast night
45° 💧 None 💨 1 mph H 77%29.80 inHg
Overcast · 8:00 AM Overcast
45° 💧 None 💨 2 mph H 76%29.83 inHg
Overcast · 11:00 AM Overcast
46° 💧 0.01 in 💨 1 mph H 69%29.85 inHg
Light rain · 2:00 PM Light rain
46° 💧 0.02 in 💨 2 mph H 90%29.94 inHg
Overcast · 5:00 PM Overcast
46° 💧 None 💨 1 mph H 93%30.00 inHg
Mostly cloudy · 8:00 PM Mostly cloudy
44° 💧 None 💨 1 mph H 95%30.03 inHg

In Sylvanite and, more broadly, across the state of Montana: The evening remains mostly sunny with only a few clouds passing through. Temperatures will stay cool, hovering around 61 degrees Fahrenheit. Light south winds will continue, with speeds up to 7 mph and gusts reaching 6 mph. No precipitation is expected during the coming hours, making for a calm and clear night. Conditions should remain comfortable, with no significant weather changes on the horizon.

15-Day Weather Outlook for Sylvanite

TomorrowTomorrow Light rain Light rain 58°/43° 💧 0.06 in 💨 8 mph
Friday, Sep 4Fri Sep 4 Light rain Light rain 50°/39° 💧 0.06 in 💨 4 mph
Saturday, Sep 5Sat Sep 5 Moderate rain Moderate rain 43°/37° 💧 0.44 in 💨 4 mph
Sunday, Sep 6Sun Sep 6 Mostly cloudy Mostly cloudy 62°/33° 💧 None 💨 5 mph
Monday, Sep 7Mon Sep 7 Light rain Light rain 59°/44° 💧 0.02 in 💨 5 mph
Tuesday, Sep 8Tue Sep 8 Light rain Light rain 55°/47° 💧 0.29 in 💨 3 mph
Wednesday, Sep 9Wed Sep 9 Mostly cloudy Mostly cloudy 71°/42° 💧 None 💨 4 mph
Thursday, Sep 10Thu Sep 10 Sunny Sunny 72°/47° 💧 None 💨 14 mph
Friday, Sep 11Fri Sep 11 Light rain Light rain 61°/42° 💧 0.03 in 💨 13 mph
Saturday, Sep 12Sat Sep 12 Light rain Light rain 57°/36° 💧 0.01 in 💨 14 mph
Sunday, Sep 13Sun Sep 13 Sunny Sunny 61°/37° 💧 None 💨 9 mph
Monday, Sep 14Mon Sep 14 Sunny Sunny 70°/40° 💧 None 💨 4 mph
Tuesday, Sep 15Tue Sep 15 Sunny Sunny 79°/47° 💧 None 💨 3 mph
Wednesday, Sep 16Wed Sep 16 Sunny Sunny 79°/50° 💧 None 💨 8 mph
Thursday, Sep 17Thu Sep 17 Sunny Sunny 73°/42° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Sylvanite

Vertical axis: °F · Color based on temperature
Overcast night at 11:00 PM
51° Today 11:00 PM
Overcast night at 12:00 AM
51° 12:00 AM
Mostly cloudy night at 1:00 AM
49° 1:00 AM
Overcast night at 2:00 AM
48° 2:00 AM
Overcast night at 3:00 AM
48° Tomorrow 3:00 AM
Overcast night at 4:00 AM
46° 4:00 AM
Light rain at 5:00 AM
47° 5:00 AM
Overcast night at 6:00 AM
46° 6:00 AM
Light rain at 7:00 AM
48° Tomorrow 7:00 AM
Light rain at 8:00 AM
46° 8:00 AM
Light rain at 9:00 AM
46° 9:00 AM
Light rain at 10:00 AM
47° 10:00 AM
Light rain at 11:00 AM
47° Tomorrow 11:00 AM
Light rain at 12:00 PM
48° 12:00 PM
Light rain at 1:00 PM
52° 1:00 PM
Mostly cloudy at 2:00 PM
54° 2:00 PM
Mostly cloudy at 3:00 PM
55° Tomorrow 3:00 PM
Mostly cloudy at 4:00 PM
55° 4:00 PM
Mostly cloudy at 5:00 PM
57° 5:00 PM
Mostly cloudy at 6:00 PM
56° 6:00 PM
Overcast at 7:00 PM
56° Tomorrow 7:00 PM
Mostly cloudy at 8:00 PM
50° 8:00 PM
Partly cloudy night at 9:00 PM
47° 9:00 PM
Partly cloudy night at 10:00 PM
46° 10:00 PM
Partly cloudy night at 11:00 PM
45° Tomorrow 11:00 PM
Mostly cloudy night at 12:00 AM
43° 12:00 AM
Overcast night at 1:00 AM
46° 1:00 AM
Overcast night at 2:00 AM
46° 2:00 AM
Overcast night at 3:00 AM
46° Friday 3:00 AM
Overcast night at 4:00 AM
44° 4:00 AM
Overcast night at 5:00 AM
45° 5:00 AM
Overcast night at 6:00 AM
45° 6:00 AM
Overcast night at 7:00 AM
45° Friday 7:00 AM
Overcast at 8:00 AM
45° 8:00 AM
Overcast at 9:00 AM
45° 9:00 AM
Overcast at 10:00 AM
46° 10:00 AM
Overcast at 11:00 AM
46° Friday 11:00 AM
Overcast at 12:00 PM
46° 12:00 PM
Light rain at 1:00 PM
49° 1:00 PM
Light rain at 2:00 PM
46° 2:00 PM
Overcast at 3:00 PM
48° Friday 3:00 PM
Overcast at 4:00 PM
47° 4:00 PM
Overcast at 5:00 PM
46° 5:00 PM
Overcast at 6:00 PM
47° 6:00 PM
Mostly cloudy at 7:00 PM
49° Friday 7:00 PM
Mostly cloudy at 8:00 PM
44° 8:00 PM
Partly cloudy night at 9:00 PM
42° 9:00 PM
Partly cloudy night at 10:00 PM
41° 10:00 PM
Partly cloudy night at 11:00 PM
40° Friday 11:00 PM
Partly cloudy night at 12:00 AM
39° 12:00 AM
Mostly cloudy night at 1:00 AM
39° 1:00 AM
Mostly cloudy night at 2:00 AM
38° 2:00 AM
Mostly cloudy night at 3:00 AM
38° Saturday 3:00 AM
Mostly cloudy night at 4:00 AM
37° 4:00 AM
Mostly cloudy night at 5:00 AM
38° 5:00 AM
Mostly cloudy night at 6:00 AM
38° 6:00 AM
Overcast night at 7:00 AM
38° Saturday 7:00 AM
Overcast at 8:00 AM
41° 8:00 AM
Light rain at 9:00 AM
43° 9:00 AM
Overcast at 10:00 AM
45° 10:00 AM
Overcast at 11:00 AM
47° Saturday 11:00 AM
Moderate rain at 12:00 PM
45° 12:00 PM
Light rain at 1:00 PM
44° 1:00 PM
Light rain at 2:00 PM
43° 2:00 PM
Light rain at 3:00 PM
43° Saturday 3:00 PM
Overcast at 4:00 PM
44° 4:00 PM
Overcast at 5:00 PM
45° 5:00 PM
Overcast at 6:00 PM
46° 6:00 PM
Overcast at 7:00 PM
46° Saturday 7:00 PM
Overcast at 8:00 PM
44° 8:00 PM
Overcast night at 9:00 PM
42° 9:00 PM
Overcast night at 10:00 PM
40° 10:00 PM
Overcast night at 11:00 PM
39° Saturday 11:00 PM
Overcast night at 12:00 AM
39° 12:00 AM
Overcast night at 1:00 AM
39° 1:00 AM
Overcast night at 2:00 AM
39° 2:00 AM
Overcast night at 3:00 AM
39° Sunday 3:00 AM
Overcast night at 4:00 AM
37° 4:00 AM
Overcast night at 5:00 AM
36° 5:00 AM
Overcast night at 6:00 AM
36° 6:00 AM
Partly cloudy night at 7:00 AM
35° Sunday 7:00 AM
Mostly cloudy at 8:00 AM
37° 8:00 AM
Mostly cloudy at 9:00 AM
42° 9:00 AM
Overcast at 10:00 AM
47° 10:00 AM
Mostly cloudy at 11:00 AM
54° Sunday 11:00 AM
Mostly cloudy at 12:00 PM
60° 12:00 PM
Partly cloudy at 1:00 PM
64° 1:00 PM
Mostly cloudy at 2:00 PM
66° 2:00 PM
Mostly cloudy at 3:00 PM
68° Sunday 3:00 PM
Mostly cloudy at 4:00 PM
68° 4:00 PM
Mostly cloudy at 5:00 PM
67° 5:00 PM
Mostly cloudy at 6:00 PM
65° 6:00 PM
Mostly cloudy at 7:00 PM
63° Sunday 7:00 PM
Mostly cloudy at 8:00 PM
55° 8:00 PM
Mostly cloudy night at 9:00 PM
51° 9:00 PM
Mostly cloudy night at 10:00 PM
48° 10:00 PM

AIR QUALITY FORECAST

Air Quality Forecast for Sylvanite

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 11:00 PM
PM2.5 Fine particles Good 0,7µg/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 0,7µg/m³

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

O₃ Ozone Fair 61,0µg/m³

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

NO₂ Nitrogen dioxide Good 2,0µg/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 Sylvanite

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 2,4Low 🙂Fair
Tomorrow UV 4,1Moderate 🙂Fair
Friday UV 1,0Low 🙂Fair
Saturday UV 0,7Low 🙂Fair
Sunday UV 4,6Moderate 😊Good
Monday UV 4,0Moderate Unavailable
Tuesday UV 5,0Moderate Unavailable
Today's weather health advice Open today's recommendations.

Low UV risk

UV radiation will be low, although basic protection is still advisable during 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 Sylvanite

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 11:00 PM 12:00 AM 1:00 AM 2:00 AM Tomorrow 3:00 AM 4:00 AM 5:00 AM 6:00 AM Tomorrow 7:00 AM 8:00 AM 9:00 AM 10:00 AM Tomorrow 11:00 AM 12:00 PM 1:00 PM 2:00 PM Tomorrow 3:00 PM 4:00 PM 5:00 PM 6:00 PM Tomorrow 7:00 PM 8:00 PM 9:00 PM 10:00 PM Tomorrow 11:00 PM 12:00 AM 1:00 AM 2:00 AM Friday 3:00 AM 4:00 AM 5:00 AM 6:00 AM Friday 7:00 AM 8:00 AM 9:00 AM 10:00 AM Friday 11:00 AM 12:00 PM 1:00 PM 2:00 PM Friday 3:00 PM 4:00 PM 5:00 PM 6:00 PM Friday 7:00 PM 8:00 PM 9:00 PM 10:00 PM Friday 11:00 PM 12:00 AM 1:00 AM 2:00 AM Saturday 3:00 AM 4:00 AM 5:00 AM 6:00 AM Saturday 7:00 AM 8:00 AM 9:00 AM 10:00 AM Saturday 11:00 AM 12:00 PM 1:00 PM 2:00 PM Saturday 3:00 PM 4:00 PM 5:00 PM 6:00 PM Saturday 7:00 PM 8:00 PM 9:00 PM 10:00 PM Saturday 11:00 PM 12:00 AM 1:00 AM 2:00 AM Sunday 3:00 AM 4:00 AM 5:00 AM 6:00 AM Sunday 7:00 AM 8:00 AM 9:00 AM 10:00 AM Sunday 11:00 AM 12:00 PM 1:00 PM 2:00 PM Sunday 3:00 PM 4:00 PM 5:00 PM 6:00 PM Sunday 7:00 PM 8:00 PM 9:00 PM 10:00 PM
Sustained wind Max gusts
Internal PR simulation: 3.32 Population: 145

Forecast data for Sylvanite were last refreshed today at 10:36 PM. The current forecast period extends through 04/09/2026 at 8:00 PM. 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.