Weather Alert
St. Clair Weather Warning NWS WEATHER ALERT FOR THE SAINT CLAIR, PA AREA - Issued: 153 PM EDT Sat Sep 26 2026 St. Clair Weather Warning

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St. Clair, PA Weather - Hour by Hour Forecast

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St. Clair, PA Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 55°F13°C, dew point 51°F11°C, humidity 87%. Wind direction is NW at 10 mph16 km/h with visibility of 10 mi16 km. Barometric pressure is 29.88 in1012 mb.
Tonight - Mostly cloudy with a 50% chance of rain. Lows in the mid 50s. North winds 10 to 15 mph with gusts up to 35 mph... Full Forecast
Sunday - Rain, mainly in the morning. Highs in the lower 60s. North winds 10 to 15 mph with gusts up to 40 mph. Chance of rain near 100 per.. Full Forecast

St. Clair Hourly Weather

24 Hour Forecast Scroll
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St. Clair, PA Hourly Weather - Cloudy - 10:00 PM St. Clair, PA Hourly Weather - Cloudy - 11:00 PM St. Clair, PA Hourly Weather - Cloudy - 12:00 AM St. Clair, PA Hourly Weather - Cloudy - 1:00 AM St. Clair, PA Hourly Weather - Cloudy - 2:00 AM St. Clair, PA Hourly Weather - Cloudy - 3:00 AM St. Clair, PA Hourly Weather - Cloudy - 4:00 AM St. Clair, PA Hourly Weather - Cloudy - 5:00 AM St. Clair, PA Hourly Weather - Cloudy - 6:00 AM St. Clair, PA Hourly Weather - Cloudy - 7:00 AM St. Clair, PA Hourly Weather - Cloudy - 8:00 AM St. Clair, PA Hourly Weather - Cloudy - 9:00 AM St. Clair, PA Hourly Weather - Cloudy - 10:00 AM St. Clair, PA Hourly Weather - Cloudy - 11:00 AM St. Clair, PA Hourly Weather - Cloudy - 12:00 PM St. Clair, PA Hourly Weather - Cloudy - 1:00 PM St. Clair, PA Hourly Weather - Cloudy - 2:00 PM St. Clair, PA Hourly Weather - Cloudy - 3:00 PM St. Clair, PA Hourly Weather - Cloudy - 4:00 PM St. Clair, PA Hourly Weather - Cloudy - 5:00 PM St. Clair, PA Hourly Weather - Cloudy - 6:00 PM St. Clair, PA Hourly Weather - Cloudy - 7:00 PM St. Clair, PA Hourly Weather - Cloudy - 8:00 PM St. Clair, PA Hourly Weather - Cloudy - 9:00 PM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
58°F14°C 58°F14°C 59°F15°C 59°F15°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 59°F15°C 59°F15°C 58°F14°C 58°F14°C 59°F15°C 59°F15°C 60°F16°C 61°F16°C 62°F17°C 63°F17°C 63°F17°C 64°F18°C 63°F17°C 62°F17°C 61°F16°C 61°F16°C
Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain
66% 66% 66% 66% 66% 80% 80% 80% 80% 80% 80% 42% 42% 42% 42% 42% 42% 38% 38% 38% 38% 38% 38% 36%
58°F14°C 58°F14°C 58°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 58°F14°C 58°F14°C 58°F14°C 59°F15°C 59°F15°C 59°F15°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C
100% 100% 96% 93% 90% 90% 90% 90% 93% 93% 96% 96% 96% 96% 93% 93% 90% 87% 90% 87% 90% 93% 97% 97%
NNW NNW NNW N N N N N N NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW
10 mph 10 mph 10 mph 10 mph 10 mph 10 mph 9 mph 9 mph 9 mph 7 mph 7 mph 7 mph 9 mph 9 mph 9 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 4 mph 4 mph 4 mph
5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 3 mi5 km 3 mi5 km 3 mi5 km 3 mi5 km 3 mi5 km 5 mi8 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (EDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KRDG model statistics.

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Prob Precip % = Probability of Precipitation.

St. Clair 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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