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Now · 5:44 AM

St. Clair Weather & Hourly Forecast

United States · Minnesota · 56080

Overcast night
67°F
Overcast night
Feels like: 68°F
💧 Humidity 90% 🌡 Pressure 29.94 inHg 💨 Wind 18 mph 👁 Visibility 6.2 mi Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:35 AM 🌇 Sunset 7:57 PM

Hourly Forecast for St. Clair

Today
Overcast night · 6:00 AM Overcast night
67° 💧 0.03 in 💨 18 mph H 90%29.94 inHg
Light rain · 9:00 AM Light rain
66° 💧 0.03 in 💨 15 mph H 92%29.91 inHg
Mostly cloudy · 12:00 PM Mostly cloudy
74° 💧 None 💨 18 mph H 42%29.85 inHg
Overcast · 3:00 PM Overcast
83° 💧 None 💨 15 mph H 35%29.77 inHg
Overcast · 6:00 PM Overcast
83° 💧 None 💨 14 mph H 30%29.71 inHg
Overcast night · 9:00 PM Overcast night
74° 💧 None 💨 10 mph H 67%29.74 inHg
Tomorrow
Light rain · 12:00 AM Light rain
69° 💧 0.03 in 💨 12 mph H 84%29.74 inHg
Overcast night · 3:00 AM Overcast night
65° 💧 None 💨 8 mph H 92%29.71 inHg
Overcast night · 6:00 AM Overcast night
65° 💧 0.00 in 💨 6 mph H 85%29.71 inHg
Overcast · 9:00 AM Overcast
69° 💧 None 💨 8 mph H 71%29.71 inHg
Partly cloudy · 12:00 PM Partly cloudy
84° 💧 None 💨 9 mph H 32%29.71 inHg
Overcast · 3:00 PM Overcast
91° 💧 None 💨 8 mph H 28%29.68 inHg
Overcast · 6:00 PM Overcast
88° 💧 0.06 in 💨 5 mph H 27%29.65 inHg
Overcast night · 9:00 PM Overcast night
77° 💧 None 💨 11 mph H 73%29.68 inHg
Monday
Overcast night · 12:00 AM Overcast night
83° 💧 0.01 in 💨 13 mph H 53%29.65 inHg
Mostly clear night · 3:00 AM Mostly clear night
71° 💧 None 💨 9 mph H 79%29.65 inHg

In St. Clair and, more broadly, across the state of Minnesota: Tonight, expect mostly cloudy skies with mild to warm temperatures ranging from 76 to 77 degrees Fahrenheit. Light south winds will prevail, blowing at around 8 mph, with occasional gusts reaching up to 15 mph. No precipitation is expected during the evening hours, so conditions should remain dry. Temperatures will stay relatively steady, providing a comfortable night. The wind may bring some variability, but overall, weather conditions will be calm and mild as the night progresses.

15-Day Weather Outlook for St. Clair

TomorrowTomorrow Moderate rain Moderate rain 92°/65° 💧 0.10 in 💨 16 mph
Monday, Aug 31Mon Aug 31 Light rain Light rain 99°/71° 💧 0.01 in 💨 13 mph
Tuesday, Sep 1Tue Sep 1 Light rain Light rain 98°/71° 💧 0.03 in 💨 15 mph
Wednesday, Sep 2Wed Sep 2 Sunny Sunny 96°/64° 💧 None 💨 8 mph
Thursday, Sep 3Thu Sep 3 Light rain Light rain 103°/68° 💧 0.06 in 💨 17 mph
Friday, Sep 4Fri Sep 4 Mostly sunny Mostly sunny 103°/66° 💧 None 💨 9 mph
Saturday, Sep 5Sat Sep 5 Light rain Light rain 98°/73° 💧 0.03 in 💨 12 mph
Sunday, Sep 6Sun Sep 6 Sunny Sunny 77°/54° 💧 None 💨 18 mph
Monday, Sep 7Mon Sep 7 Overcast Overcast 70°/52° 💧 None 💨 12 mph
Tuesday, Sep 8Tue Sep 8 Sunny Sunny 91°/51° 💧 None 💨 14 mph
Wednesday, Sep 9Wed Sep 9 Sunny Sunny 89°/61° 💧 None 💨 14 mph
Thursday, Sep 10Thu Sep 10 Mostly cloudy Mostly cloudy 85°/60° 💧 None 💨 15 mph
Friday, Sep 11Fri Sep 11 Light rain Light rain 97°/62° 💧 0.01 in 💨 25 mph
Saturday, Sep 12Sat Sep 12 Light rain Light rain 100°/75° 💧 0.02 in 💨 23 mph
Sunday, Sep 13Sun Sep 13 Light rain Light rain 96°/72° 💧 0.06 in 💨 15 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Clair

Vertical axis: °F · Color based on temperature
Overcast night at 6:00 AM
67° Today 6:00 AM
Overcast at 7:00 AM
67° 7:00 AM
Light rain at 8:00 AM
66° 8:00 AM
Light rain at 9:00 AM
66° 9:00 AM
Light rain at 10:00 AM
66° Today 10:00 AM
Overcast at 11:00 AM
70° 11:00 AM
Mostly cloudy at 12:00 PM
74° 12:00 PM
Mostly cloudy at 1:00 PM
77° 1:00 PM
Mostly cloudy at 2:00 PM
81° Today 2:00 PM
Overcast at 3:00 PM
83° 3:00 PM
Overcast at 4:00 PM
83° 4:00 PM
Overcast at 5:00 PM
84° 5:00 PM
Overcast at 6:00 PM
83° Today 6:00 PM
Mostly cloudy at 7:00 PM
82° 7:00 PM
Overcast night at 8:00 PM
80° 8:00 PM
Overcast night at 9:00 PM
74° 9:00 PM
Overcast night at 10:00 PM
71° Today 10:00 PM
Overcast night at 11:00 PM
70° 11:00 PM
Light rain at 12:00 AM
69° 12:00 AM
Light rain at 1:00 AM
68° 1:00 AM
Light rain at 2:00 AM
66° Tomorrow 2:00 AM
Overcast night at 3:00 AM
65° 3:00 AM
Overcast night at 4:00 AM
65° 4:00 AM
Overcast night at 5:00 AM
65° 5:00 AM
Overcast night at 6:00 AM
65° Tomorrow 6:00 AM
Overcast at 7:00 AM
65° 7:00 AM
Light rain at 8:00 AM
66° 8:00 AM
Overcast at 9:00 AM
69° 9:00 AM
Mostly cloudy at 10:00 AM
75° Tomorrow 10:00 AM
Mostly cloudy at 11:00 AM
80° 11:00 AM
Partly cloudy at 12:00 PM
84° 12:00 PM
Mostly cloudy at 1:00 PM
86° 1:00 PM
Overcast at 2:00 PM
89° Tomorrow 2:00 PM
Overcast at 3:00 PM
91° 3:00 PM
Overcast at 4:00 PM
92° 4:00 PM
Overcast at 5:00 PM
91° 5:00 PM
Overcast at 6:00 PM
88° Tomorrow 6:00 PM
Moderate rain at 7:00 PM
83° 7:00 PM
Light rain at 8:00 PM
72° 8:00 PM
Overcast night at 9:00 PM
77° 9:00 PM
Overcast night at 10:00 PM
82° Tomorrow 10:00 PM
Overcast night at 11:00 PM
83° 11:00 PM
Overcast night at 12:00 AM
83° 12:00 AM
Light rain at 1:00 AM
79° 1:00 AM
Light rain at 2:00 AM
72° Monday 2:00 AM
Mostly clear night at 3:00 AM
71° 3:00 AM
Partly cloudy night at 4:00 AM
71° 4:00 AM
Mostly cloudy night at 5:00 AM
72° 5:00 AM
Mostly cloudy night at 6:00 AM
73° Monday 6:00 AM
Mostly cloudy at 7:00 AM
73° 7:00 AM
Mostly cloudy at 8:00 AM
77° 8:00 AM
Mostly cloudy at 9:00 AM
80° 9:00 AM
Overcast at 10:00 AM
81° Monday 10:00 AM
Overcast at 11:00 AM
85° 11:00 AM
Overcast at 12:00 PM
89° 12:00 PM
Overcast at 1:00 PM
93° 1:00 PM
Overcast at 2:00 PM
96° Monday 2:00 PM
Overcast at 3:00 PM
98° 3:00 PM
Overcast at 4:00 PM
99° 4:00 PM
Overcast at 5:00 PM
98° 5:00 PM
Overcast at 6:00 PM
95° Monday 6:00 PM
Overcast at 7:00 PM
88° 7:00 PM
Mostly cloudy night at 8:00 PM
81° 8:00 PM
Partly cloudy night at 9:00 PM
78° 9:00 PM
Mostly cloudy night at 10:00 PM
77° Monday 10:00 PM
Mostly cloudy night at 11:00 PM
76° 11:00 PM
Mostly cloudy night at 12:00 AM
76° 12:00 AM
Mostly cloudy night at 1:00 AM
74° 1:00 AM
Mostly cloudy night at 2:00 AM
73° Tuesday 2:00 AM
Mostly cloudy night at 3:00 AM
71° 3:00 AM
Mostly cloudy night at 4:00 AM
72° 4:00 AM
Mostly cloudy night at 5:00 AM
75° 5:00 AM
Overcast night at 6:00 AM
71° Tuesday 6:00 AM
Overcast at 7:00 AM
72° 7:00 AM
Light rain at 8:00 AM
72° 8:00 AM
Overcast at 9:00 AM
74° 9:00 AM
Overcast at 10:00 AM
75° Tuesday 10:00 AM
Overcast at 11:00 AM
81° 11:00 AM
Overcast at 12:00 PM
86° 12:00 PM
Overcast at 1:00 PM
93° 1:00 PM
Mostly cloudy at 2:00 PM
97° Tuesday 2:00 PM
Overcast at 3:00 PM
98° 3:00 PM
Overcast at 4:00 PM
98° 4:00 PM
Mostly cloudy at 5:00 PM
98° 5:00 PM
Mostly cloudy at 6:00 PM
97° Tuesday 6:00 PM
Mostly cloudy at 7:00 PM
95° 7:00 PM
Overcast night at 8:00 PM
84° 8:00 PM
Overcast night at 9:00 PM
79° 9:00 PM
Mostly cloudy night at 10:00 PM
75° Tuesday 10:00 PM
Mostly cloudy night at 11:00 PM
73° 11:00 PM
Overcast night at 12:00 AM
71° 12:00 AM
Mostly cloudy night at 1:00 AM
69° 1:00 AM
Overcast night at 2:00 AM
71° Wednesday 2:00 AM
Mostly cloudy night at 3:00 AM
68° 3:00 AM
Partly cloudy night at 4:00 AM
67° 4:00 AM
Partly cloudy night at 5:00 AM
66° 5:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for St. Clair

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 6:00 AM
PM2.5 Fine particles Good 4,1µg/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 4,2µg/m³

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

O₃ Ozone Fair 71,7µg/m³

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

NO₂ Nitrogen dioxide Good 1,4µg/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 St. Clair

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 7,1High 🙂Fair
Tomorrow UV 7,1High 🙂Fair
Monday UV 7,2High 🙂Fair
Tuesday UV 6,6High 🙂Fair
Wednesday UV 8,0Very high 😊Good
Thursday UV 7,0High Unavailable
Friday UV 8,0Very high Unavailable
Hourly UV index today
7:00 AMUV 0,0 8:00 AMUV 0,2 9:00 AMUV 1,1 10:00 AMUV 2,8 11:00 AMUV 4,9 12:00 PMUV 6,6 1:00 PMUV 7,0 2:00 PMUV 7,1 3:00 PMUV 5,8 4:00 PMUV 4,0 5:00 PMUV 2,2 6:00 PMUV 0,8
Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

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 St. Clair

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 6:00 AM 7:00 AM 8:00 AM 9:00 AM 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 Monday 2:00 AM 3:00 AM 4:00 AM 5:00 AM Monday 6:00 AM 7:00 AM 8:00 AM 9:00 AM Monday 10:00 AM 11:00 AM 12:00 PM 1:00 PM Monday 2:00 PM 3:00 PM 4:00 PM 5:00 PM Monday 6:00 PM 7:00 PM 8:00 PM 9:00 PM Monday 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 7:00 PM 8:00 PM 9:00 PM Tuesday 10:00 PM 11:00 PM 12:00 AM 1:00 AM Wednesday 2:00 AM 3:00 AM 4:00 AM 5:00 AM
Sustained wind Max gusts
Internal PR simulation: 3.59 Population: 710

Forecast data for St. Clair were last refreshed today at 5:44 AM. The current forecast period extends through 31/08/2026 at 3:00 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.