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As of 23:04 EDT

Weather in St. Clair, PA

55°Current weather

St. Clair, Sunday, 11 October, 23:04

Overcast. Feels like 55°. High 56°, low 53°.

Pressure29.83 inHg
Wind1 mph NE
Humidity98%
Visibility6.2 mi
Dew point54°

10-day forecast for St. Clair, PA: 27° to 77°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

77°
Best day: Tuesday, October 13
56° · 1.08 in
Worst day: Sunday, October 11

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

Mon, 1269° / 50°0Clear
MorningMostly clear50°feels 50°
AfternoonPartly cloudy69°feels 68°
EveningMostly clear59°feels 59°
OvernightOvercast53°feels 53°
69 °Clear

St. Clair, Monday, 12 October

Clear. High 69°, low 50°.

Pressure29.88 inHg
Wind8.9 mph NW
Humidity70%
Visibility6.2 mi
Dew point55°
Tue, 1377° / 52°0Clear
MorningClear55°feels 54°
AfternoonClear75°feels 75°
EveningClear70°feels 70°
OvernightMostly clear54°feels 53°
77 °Clear

St. Clair, Tuesday, 13 October

Clear. High 77°, low 52°.

Pressure29.91 inHg
Wind7.5 mph SW
Humidity67%
Visibility6.2 mi
Dew point62°
Wed, 1476° / 61°0.11Rain
MorningOvercast65°feels 66°
AfternoonOvercast75°feels 75°
EveningClear66°feels 66°
OvernightClear67°feels 67°
76 °Rain

St. Clair, Wednesday, 14 October

Rain. High 76°, low 61°.

Pressure29.94 inHg
Wind11.4 mph NW
Humidity64%
Visibility6.2 mi
Dew point59°
Thu, 1565° / 53°0Overcast
MorningMostly clear53°feels 52°
AfternoonMostly clear65°feels 64°
EveningOvercast60°feels 59°
OvernightOvercast59°feels 59°
65 °Overcast

St. Clair, Thursday, 15 October

Overcast. High 65°, low 53°.

Pressure30.21 inHg
Wind3.5 mph N
Humidity62%
Visibility6.2 mi
Dew point48°
Fri, 1667° / 50°0.69Rain
MorningRain60°feels 60°
AfternoonRain66°feels 67°
EveningRain60°feels 58°
OvernightRain51°feels 47°
67 °Rain

St. Clair, Friday, 16 October

Rain. High 67°, low 50°.

Pressure29.59 inHg
Wind17.4 mph NW
Humidity99%
Visibility—
Dew point65°
Sat, 1748° / 29°0Clear
MorningClear43°feels 35°
AfternoonClear44°feels 36°
EveningClear40°feels 33°
OvernightClear32°feels 26°
48 °Clear

St. Clair, Saturday, 17 October

Clear. High 48°, low 29°.

Pressure30.27 inHg
Wind17 mph NW
Humidity60%
Visibility—
Dew point31°
Sun, 1848° / 27°0Clear
MorningClear32°feels 28°
AfternoonClear44°feels 42°
EveningClear44°feels 41°
OvernightClear32°feels 29°
48 °Clear

St. Clair, Sunday, 18 October

Clear. High 48°, low 27°.

Pressure30.71 inHg
Wind7.7 mph SW
Humidity40%
Visibility—
Dew point18°
Mon, 1959° / 32°0Clear
MorningClear37°feels 34°
AfternoonClear52°feels 49°
EveningClear54°feels 52°
OvernightClear41°feels 39°
59 °Clear

St. Clair, Monday, 19 October

Clear. High 59°, low 32°.

Pressure30.53 inHg
Wind6.8 mph W
Humidity44%
Visibility—
Dew point28°
Tue, 2063° / 42°0Clear
MorningClear46°feels 45°
AfternoonClear58°feels 56°
EveningClear56°feels 55°
OvernightClear47°feels 47°
63 °Clear

St. Clair, Tuesday, 20 October

Clear. High 63°, low 42°.

Pressure30.39 inHg
Wind4.3 mph NW
Humidity50%
Visibility—
Dew point38°

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.