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As of 16:58 EDT

Weather in St. Clair, PA

64°Current weather

St. Clair, Thursday, 15 October, 16:58

Mostly clear. Feels like 64°. High 64°, low 51°.

Pressure30.12 inHg
Wind2 mph SE
Humidity68%
Visibility6.2 mi
Dew point54°

10-day forecast for St. Clair, PA: 36° to 76°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.

67°
Best day: Tuesday, October 20
76° · 0.19 in
Worst day: Friday, October 16

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

Fri, 1676° / 55°0.19Heavy rain
MorningOvercast59°feels 60°
AfternoonPartly cloudy76°feels 77°
EveningMostly clear59°feels 59°
OvernightLight rain57°feels 57°
76 °Heavy rain

St. Clair, Friday, 16 October

Heavy rain. High 76°, low 55°.

Pressure29.74 inHg
Wind12.7 mph SW
Humidity75%
Visibility6.2 mi
Dew point64°
Sat, 1755° / 39°0Overcast
MorningOvercast47°feels 42°
AfternoonPartly cloudy47°feels 41°
EveningClear43°feels 37°
OvernightOvercast52°feels 50°
55 °Overcast

St. Clair, Saturday, 17 October

Overcast. High 55°, low 39°.

Pressure30.27 inHg
Wind14.3 mph N
Humidity60%
Visibility6.2 mi
Dew point30°
Sun, 1858° / 36°0Clear
MorningClear38°feels 34°
AfternoonClear57°feels 54°
EveningClear47°feels 47°
OvernightClear36°feels 32°
58 °Clear

St. Clair, Sunday, 18 October

Clear. High 58°, low 36°.

Pressure30.59 inHg
Wind2.9 mph N
Humidity44%
Visibility6.2 mi
Dew point29°
Mon, 1963° / 42°0Clear
MorningClear43°feels 43°
AfternoonClear63°feels 61°
EveningClear60°feels 59°
OvernightClear42°feels 42°
63 °Clear

St. Clair, Monday, 19 October

Clear. High 63°, low 42°.

Pressure30.50 inHg
Wind3.2 mph NE
Humidity45%
Visibility6.2 mi
Dew point37°
Tue, 2067° / 46°0Clear
MorningClear50°feels 46°
AfternoonClear60°feels 58°
EveningClear63°feels 61°
OvernightClear51°feels 48°
67 °Clear

St. Clair, Tuesday, 20 October

Clear. High 67°, low 46°.

Pressure30.27 inHg
Wind10.8 mph N
Humidity44%
Visibility—
Dew point36°
Wed, 2160° / 43°0Clear
MorningClear49°feels 45°
AfternoonClear56°feels 54°
EveningClear55°feels 53°
OvernightClear44°feels 40°
60 °Clear

St. Clair, Wednesday, 21 October

Clear. High 60°, low 43°.

Pressure30.33 inHg
Wind11.5 mph N
Humidity56%
Visibility—
Dew point39°
Thu, 2256° / 39°0Clear
MorningClear43°feels 40°
AfternoonClear52°feels 50°
EveningClear53°feels 52°
OvernightClear43°feels 42°
56 °Clear

St. Clair, Thursday, 22 October

Clear. High 56°, low 39°.

Pressure30.45 inHg
Wind5.4 mph S
Humidity62%
Visibility—
Dew point37°
Fri, 2362° / 41°0Clear
MorningClear45°feels 44°
AfternoonClear56°feels 55°
EveningClear57°feels 56°
OvernightClear47°feels 46°
62 °Clear

St. Clair, Friday, 23 October

Clear. High 62°, low 41°.

Pressure30.33 inHg
Wind6.2 mph NW
Humidity64%
Visibility—
Dew point42°
Sat, 2462° / 44°0Clear
MorningClear48°feels 47°
AfternoonClear57°feels 55°
EveningClear57°feels 55°
OvernightClear44°feels 42°
62 °Clear

St. Clair, Saturday, 24 October

Clear. High 62°, low 44°.

Pressure30.36 inHg
Wind4.2 mph N
Humidity64%
Visibility—
Dew point43°

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.