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As of 22:15 EDT

Weather in St. Clair, PA

66°Current weather

St. Clair, Wednesday, 14 October, 22:15

Overcast. Feels like 67°. High 75°, low 61°.

Pressure29.97 inHg
Wind11.2 mph NW
Humidity87%
Visibility6.2 mi
Dew point61°

10-day forecast for St. Clair, PA: 37° to 78°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

75°
Best day: Wednesday, October 14
57°
Worst day: Saturday, October 17

Tap any day below to see morning, afternoon, evening and overnight.

Thu, 1564° / 44°0Clear
MorningPartly cloudy46°feels 43°
AfternoonClear63°feels 61°
EveningOvercast55°feels 53°
OvernightOvercast56°feels 55°
64 °Clear

St. Clair, Thursday, 15 October

Clear. High 64°, low 44°.

Pressure30.21 inHg
Wind3.4 mph NE
Humidity60%
Visibility6.2 mi
Dew point46°
Fri, 1678° / 46°0.08Light rain
MorningOvercast54°feels 53°
AfternoonClear75°feels 75°
EveningPartly cloudy64°feels 64°
OvernightOvercast46°feels 41°
78 °Light rain

St. Clair, Friday, 16 October

Light rain. High 78°, low 46°.

Pressure29.77 inHg
Wind10.4 mph S
Humidity92%
Visibility1.2 mi
Dew point64°
Sat, 1757° / 39°0.02Light rain
MorningOvercast46°feels 39°
AfternoonOvercast48°feels 42°
EveningClear42°feels 36°
OvernightOvercast55°feels 54°
57 °Light rain

St. Clair, Saturday, 17 October

Light rain. High 57°, low 39°.

Pressure30.18 inHg
Wind16.2 mph NW
Humidity56%
Visibility6.2 mi
Dew point30°
Sun, 1857° / 37°0Clear
MorningClear37°feels 35°
AfternoonClear57°feels 54°
EveningClear45°feels 42°
OvernightClear37°feels 32°
57 °Clear

St. Clair, Sunday, 18 October

Clear. High 57°, low 37°.

Pressure30.59 inHg
Wind3 mph NW
Humidity46%
Visibility6.2 mi
Dew point29°
Mon, 1963° / 42°0Clear
MorningClear46°feels 46°
AfternoonClear58°feels 56°
EveningClear60°feels 58°
OvernightClear47°feels 47°
63 °Clear

St. Clair, Monday, 19 October

Clear. High 63°, low 42°.

Pressure30.53 inHg
Wind3.6 mph W
Humidity43%
Visibility—
Dew point33°
Tue, 2066° / 43°0Partly cloudy
MorningPartly cloudy48°feels 46°
AfternoonPartly cloudy61°feels 59°
EveningPartly cloudy58°feels 57°
OvernightPartly cloudy46°feels 45°
66 °Partly cloudy

St. Clair, Tuesday, 20 October

Partly cloudy. High 66°, low 43°.

Pressure30.33 inHg
Wind5.7 mph N
Humidity45%
Visibility—
Dew point37°
Wed, 2163° / 44°0Clear
MorningClear49°feels 47°
AfternoonClear59°feels 57°
EveningClear58°feels 57°
OvernightClear47°feels 45°
63 °Clear

St. Clair, Wednesday, 21 October

Clear. High 63°, low 44°.

Pressure30.42 inHg
Wind4.3 mph N
Humidity60%
Visibility—
Dew point43°
Thu, 2259° / 43°0Clear
MorningClear47°feels 46°
AfternoonClear56°feels 55°
EveningClear56°feels 55°
OvernightClear46°feels 46°
59 °Clear

St. Clair, Thursday, 22 October

Clear. High 59°, low 43°.

Pressure30.47 inHg
Wind5.6 mph S
Humidity72%
Visibility—
Dew point45°
Fri, 2363° / 44°0Clear
MorningClear48°feels 47°
AfternoonClear58°feels 57°
EveningClear60°feels 59°
OvernightClear50°feels 49°
63 °Clear

St. Clair, Friday, 23 October

Clear. High 63°, low 44°.

Pressure30.39 inHg
Wind5.2 mph SW
Humidity73%
Visibility—
Dew point47°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in St. Clair, PA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.