National Weather Service forecast

St. Clair, Pennsylvania Weather

49°Overnight: Patchy Fog
Wind 0 mph
7-DayHourlyRadar

St. Clair 7-Day Forecast

  1. Overnight
    49°F
    Patchy Fog

    Patchy fog. Mostly clear, with a low around 49. Wind around 0 mph.

  2. Wednesday
    72°F
    Patchy Fog then Mostly Sunny
    1% chance of precipitation

    Patchy fog before 9am. Mostly sunny, with a high near 72. South wind 0 to 6 mph.

  3. Wednesday Night
    57°F
    Mostly Cloudy then Chance Light Rain
    46% chance of precipitation

    A chance of rain after 3am. Mostly cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

  4. Thursday
    70°F
    Light Rain
    96% chance of precipitation

    Rain. Cloudy, with a high near 70. South wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.

  5. Thursday Night
    55°F
    Chance Light Rain
    52% chance of precipitation

    A chance of rain. Mostly cloudy, with a low around 55. West wind around 2 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

  6. Friday
    68°F
    Chance Light Rain
    25% chance of precipitation

    A chance of rain. Mostly cloudy, with a high near 68. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

  7. Friday Night
    46°F
    Chance Light Rain then Partly Cloudy
    25% chance of precipitation

    A chance of rain before 7pm. Partly cloudy, with a low around 46. Chance of precipitation is 30%.

  8. Saturday
    60°F
    Mostly Sunny then Slight Chance Light Rain
    21% chance of precipitation

    A slight chance of rain after 1pm. Mostly sunny, with a high near 60.

  9. Saturday Night
    40°F
    Slight Chance Light Rain
    21% chance of precipitation

    A slight chance of rain before 1am. Partly cloudy, with a low around 40.

  10. Sunday
    57°F
    Mostly Sunny
    6% chance of precipitation

    Mostly sunny, with a high near 57.

  11. Sunday Night
    36°F
    Mostly Clear
    4% chance of precipitation

    Mostly clear, with a low around 36.

  12. Monday
    57°F
    Mostly Sunny
    8% chance of precipitation

    Mostly sunny, with a high near 57.

  13. Monday Night
    35°F
    Mostly Clear
    6% chance of precipitation

    Mostly clear, with a low around 35.

  14. Tuesday
    61°F
    Mostly Sunny
    5% chance of precipitation

    Mostly sunny, with a high near 61.

Issued by the National Weather Service (CTP office), updated .

St. Clair Hourly Forecast

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St. Clair Weather Radar

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About St. Clair

Population (2020 Census)
2,745
Coordinates
40.721, -76.190
Elevation
699 ft
NWS forecast office
CTP
Time zone
America/New York
Sunrise today
6:38 AM EST
Sunset today
4:58 PM EST
Daylight today
10 h 20 min

St. Clair Weather Questions

What is the weather forecast for St. Clair, Pennsylvania?

Overnight: Patchy fog. Mostly clear, with a low around 49. Wind around 0 mph. Wednesday: Patchy fog before 9am. Mostly sunny, with a high near 72. South wind 0 to 6 mph.

Will it rain or snow in St. Clair this week?

The best chance of precipitation is Thursday at 96%. Periods with a 30% chance or more: Wednesday Night (46%), Thursday (96%), Thursday Night (52%).

How warm and how cold will it get in St. Clair this week?

The warmest day is Wednesday, with a high near 72°F. The coldest night is Monday Night, with a low near 35°F.

What time are sunrise and sunset in St. Clair today?

Sunrise is at 6:38 AM EST and sunset is at 4:58 PM EST, for 10 h 20 min of daylight.

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