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As of 11:17 EDT

Weather in St. Clair, PA

57°Current weather

St. Clair, Thursday, 15 October, 11:17

Overcast. Feels like 56°. High 64°, low 51°.

Pressure30.21 inHg
Wind5 mph NE
Humidity78%
Visibility6.2 mi
Dew point50°

10-day forecast for St. Clair, PA: 31° to 78°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

65°
Best day: Tuesday, October 20
78° · 0.39 in
Worst day: Friday, October 16

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

Fri, 1678° / 57°0.39Heavy rain
MorningLight rain61°feels 61°
AfternoonClear78°feels 79°
EveningMostly clear62°feels 62°
OvernightLight rain58°feels 58°
78 °Heavy rain

St. Clair, Friday, 16 October

Heavy rain. High 78°, low 57°.

Pressure29.77 inHg
Wind12.1 mph S
Humidity85%
Visibility1.7 mi
Dew point64°
Sat, 1758° / 39°0Overcast
MorningOvercast46°feels 39°
AfternoonPartly cloudy49°feels 43°
EveningClear43°feels 37°
OvernightOvercast56°feels 55°
58 °Overcast

St. Clair, Saturday, 17 October

Overcast. High 58°, low 39°.

Pressure30.24 inHg
Wind15.5 mph N
Humidity58%
Visibility6.2 mi
Dew point28°
Sun, 1857° / 36°0Clear
MorningClear38°feels 36°
AfternoonClear57°feels 55°
EveningClear47°feels 44°
OvernightClear37°feels 35°
57 °Clear

St. Clair, Sunday, 18 October

Clear. High 57°, low 36°.

Pressure30.59 inHg
Wind4.4 mph W
Humidity56%
Visibility6.2 mi
Dew point38°
Mon, 1962° / 42°0Clear
MorningClear43°feels 43°
AfternoonClear58°feels 55°
EveningClear57°feels 55°
OvernightClear43°feels 40°
62 °Clear

St. Clair, Monday, 19 October

Clear. High 62°, low 42°.

Pressure30.56 inHg
Wind4.8 mph SW
Humidity45%
Visibility—
Dew point34°
Tue, 2065° / 44°0Mostly clear
MorningMostly clear48°feels 48°
AfternoonMostly clear60°feels 58°
EveningMostly clear62°feels 60°
OvernightMostly clear49°feels 48°
65 °Mostly clear

St. Clair, Tuesday, 20 October

Mostly clear. High 65°, low 44°.

Pressure30.36 inHg
Wind4.3 mph NW
Humidity50%
Visibility—
Dew point38°
Wed, 2161° / 44°0Overcast
MorningOvercast49°feels 47°
AfternoonOvercast57°feels 55°
EveningOvercast56°feels 54°
OvernightOvercast45°feels 42°
61 °Overcast

St. Clair, Wednesday, 21 October

Overcast. High 61°, low 44°.

Pressure30.36 inHg
Wind8.3 mph N
Humidity63%
Visibility—
Dew point43°
Thu, 2259° / 41°0Clear
MorningClear45°feels 43°
AfternoonClear55°feels 53°
EveningClear55°feels 54°
OvernightClear45°feels 45°
59 °Clear

St. Clair, Thursday, 22 October

Clear. High 59°, low 41°.

Pressure30.39 inHg
Wind4.3 mph S
Humidity55%
Visibility—
Dew point37°
Fri, 2356° / 37°0Clear
MorningClear49°feels 48°
AfternoonClear52°feels 49°
EveningClear50°feels 47°
OvernightClear39°feels 35°
56 °Clear

St. Clair, Friday, 23 October

Clear. High 56°, low 37°.

Pressure30.36 inHg
Wind11.4 mph N
Humidity49%
Visibility—
Dew point33°
Sat, 2449° / 31°0Partly cloudy
MorningPartly cloudy35°feels 31°
AfternoonPartly cloudy44°feels 40°
EveningPartly cloudy46°feels 43°
OvernightPartly cloudy34°feels 30°
49 °Partly cloudy

St. Clair, Saturday, 24 October

Partly cloudy. High 49°, low 31°.

Pressure30.65 inHg
Wind7.4 mph E
Humidity54%
Visibility—
Dew point27°

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.