Saint Clair, PA Weather

    04:00 Sunday
    Clear
    Clear skies
    0° Feels like -4°
    New Moon New Moon Illuminated: 3%
    • Today 21 Dec. Scattered clouds 4° / -6° Moderate west wind 19 - 43 km/h
    • Tomorrow 22 Dec. Rain and snow with partly cloud skies 30% 0.4 mm 5° / -7° Moderate southeast wind 11 - 21 km/h
    • Tuesday 23 Dec. Rain and snow with partly cloud skies 80% 0.9 mm 6° / 1° Moderate southwest wind 19 - 37 km/h
    • Wednesday 24 Dec. Scattered clouds 4° / -3° Moderate west wind 14 - 28 km/h
    • Thursday 25 Dec. Light rain with cloudy skies 80% 2.4 mm 8° / 0° Gentle southwest wind 7 - 17 km/h
    • Friday 26 Dec. Light rain with cloudy skies 90% 12 mm 14° / 6° Moderate southwest wind 20 - 43 km/h
    • Saturday 27 Dec. Light rain with partly cloudy skies 70% 1.1 mm 14° / 3° Moderate west wind 21 - 46 km/h

    Weather Forecast for Saint Clair, PA Today

    , 21 December

    Tomorrow

    , 22 December
    05:00 Clear skies 0° Clear
    Feels Like -4°
    Moderate west wind West 17 - 36 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 61%
    • Dew Point Dew Point -6 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -4 °C
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 1640 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 36 km/h
    • Visibility Visibility 50 km
    06:00 Clear skies -1° Clear
    Feels Like -6°
    Moderate west wind West 17 - 35 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 61%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 8%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1023 hPa
    • Snowline Snowline 656 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 35 km/h
    • Visibility Visibility 45 km
    07:00 Clear skies -2° Clear
    Feels Like -7°
    Moderate west wind West 16 - 36 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 62%
    • Dew Point Dew Point -8 °C
    • Clouds Clouds 10%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1024 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 36 km/h
    • Visibility Visibility 45 km
    Scattered clouds 08:00 Scattered clouds -3° Scattered clouds
    Feels Like -8°
    Moderate west wind West 16 - 34 km/h
    		UV Index 0 Low SPF: no
    08:00 Scattered clouds -3° Scattered clouds
    Feels Like -8°
    Moderate west wind West 16 - 34 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 65%
    • Dew Point Dew Point -9 °C
    • Clouds Clouds 15%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -8 °C
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1025 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Visibility Visibility 45 km
    09:00 Clear -2° Sunny
    Feels Like -7°
    Moderate west wind West 16 - 34 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 63%
    • Dew Point Dew Point -9 °C
    • Clouds Clouds 3%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1027 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 34 km/h
    • Visibility Visibility 45 km
    10:00 Scattered clouds -2° Scattered clouds
    Feels Like -7°
    Moderate west wind West 19 - 42 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 59%
    • Dew Point Dew Point -9 °C
    • Clouds Clouds 21%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 19 km/h
    • Pressure Pressure 1028 hPa
    • Snowline Snowline 328 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 42 km/h
    • Visibility Visibility 50 km
    Scattered clouds 11:00 Scattered clouds -2° Scattered clouds
    Feels Like -6°
    Moderate west wind West 18 - 42 km/h
    		UV Index 1 Low SPF: no
    11:00 Scattered clouds -2° Scattered clouds
    Feels Like -6°
    Moderate west wind West 18 - 42 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 51%
    • Dew Point Dew Point -10 °C
    • Clouds Clouds 19%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 18 km/h
    • Pressure Pressure 1029 hPa
    • Snowline Snowline 328 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 42 km/h
    • Visibility Visibility 50 km
    12:00 Clear -1° Sunny
    Feels Like -6°
    Moderate west wind West 17 - 42 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 45%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 1%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 17 km/h
    • Pressure Pressure 1029 hPa
    • Snowline Snowline 656 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 42 km/h
    • Visibility Visibility 50 km
    13:00 Clear -1° Sunny
    Feels Like -6°
    Moderate west wind West 16 - 41 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 43%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 16 km/h
    • Pressure Pressure 1029 hPa
    • Snowline Snowline 656 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 41 km/h
    • Visibility Visibility 50 km
    Sunny 14:00 Clear -1° Sunny
    Feels Like -5°
    Moderate northwest wind Northwest 15 - 39 km/h
    		UV Index 1 Low SPF: no
    14:00 Clear -1° Sunny
    Feels Like -5°
    Moderate northwest wind Northwest 15 - 39 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 43%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -5 °C
    • Wind Wind - Average 15 km/h
    • Pressure Pressure 1029 hPa
    • Snowline Snowline 656 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 39 km/h
    • Visibility Visibility 50 km
    15:00 Clear -1° Sunny
    Feels Like -5°
    Moderate northwest wind Northwest 13 - 35 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 44%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -5 °C
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1030 hPa
    • Snowline Snowline 656 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 35 km/h
    • Visibility Visibility 50 km
    16:00 Clear -2° Sunny
    Feels Like -5°
    Moderate northwest wind Northwest 11 - 30 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 48%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -5 °C
    • Wind Wind - Average 11 km/h
    • Pressure Pressure 1030 hPa
    • Snowline Snowline 328 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 30 km/h
    • Visibility Visibility 50 km
    Sunny 17:00 Clear -3° Sunny
    Feels Like -6°
    Moderate northwest wind Northwest 8 - 23 km/h
    		UV Index 0 Low SPF: no
    17:00 Clear -3° Sunny
    Feels Like -6°
    Moderate northwest wind Northwest 8 - 23 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 54%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1031 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 23 km/h
    • Visibility Visibility 50 km
    18:00 Clear skies -4° Clear
    Feels Like -7°
    Gentle west wind West 8 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 55%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1032 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Visibility Visibility 50 km
    19:00 Clear skies -4° Clear
    Feels Like -7°
    Gentle northwest wind Northwest 8 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 55%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1033 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Visibility Visibility 50 km
    Clear 20:00 Clear skies -4° Clear
    Feels Like -7°
    Gentle northwest wind Northwest 7 - 15 km/h
    		UV Index 0 Low SPF: no
    20:00 Clear skies -4° Clear
    Feels Like -7°
    Gentle northwest wind Northwest 7 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 57%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1034 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Visibility Visibility 45 km
    21:00 Clear skies -5° Clear
    Feels Like -7°
    Gentle northwest wind Northwest 5 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 59%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1035 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Visibility Visibility 45 km
    22:00 Clear skies -5° Clear
    Feels Like -5°
    Gentle west wind West 3 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 63%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -5 °C
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1035 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Visibility Visibility 45 km
    Clear 23:00 Clear skies -5° Clear
    Feels Like -6°
    Gentle southwest wind Southwest 3 - 6 km/h
    		UV Index 0 Low SPF: no
    23:00 Clear skies -5° Clear
    Feels Like -6°
    Gentle southwest wind Southwest 3 - 6 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 62%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -6 °C
    • Wind Wind - Average 3 km/h
    • Pressure Pressure 1035 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 6 km/h
    • Visibility Visibility 45 km
    24:00 Clear skies -5° Clear
    Feels Like -7°
    Gentle southwest wind Southwest 5 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 62%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 0%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -7 °C
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1035 hPa
    • Snowline Snowline 0 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Visibility Visibility 45 km

    Sunrise and Sunset

    Sunrise 07:39 Sunset 16:56
    First light 07:08 Midday 12:18 Last light 17:27
    Day length 9h 17m

    Time remaining until sunrise 2h 59m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    21 New Moon
    22 First Quarter
    23 First Quarter
    24 First Quarter
    25 First Quarter
    26 First Quarter
    27 First Quarter
    28 First Quarter
    29 First Quarter
    30 First Quarter
    31 First Quarter
    1 First Quarter
    2 Full Moon
    3 Full Moon

    Air quality in Saint Clair today

    Detail
    30
    Fair O₃ (73 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

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