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As of 18:38 EDT

Weather in St. Clair, PA

82°Current weather

St. Clair, Saturday, 8 August, 18:38

Overcast. Feels like 90°. High 83°, low 67°.

Pressure29.94 inHg
Wind4 mph SW
Humidity79%
Visibility6.2 mi
Dew point76°

Two-week outlook for St. Clair, PA: week one averages a high of 80.8° and week two 73.6°, so week two runs 7.2° cooler than week one. Around 1.4 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, August 8: 83°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 8 – August 14)80.8°64.1°0.8 in / 4 d—
2nd (August 15 – August 21)73.6°55.3°0.5 in / 2 d—

Weekend weather

Sat, August 8
Light rain
83°67°
0.03 in
Sun, August 9
Clear
83°67°
no precip.
Sat, August 15
Mostly clear
72°49°
no precip.
Sun, August 16
Clear
76°49°
no precip.
Sun, 0983° / 67°0Clear
83 °Clear

St. Clair, Sunday, 9 August

Clear. High 83°, low 67°.

Pressure30.00 inHg
Wind7.7 mph NW
Humidity47%
Visibility6.2 mi
Dew point62°
Mon, 1085° / 67°0.11Light rain
85 °Light rain

St. Clair, Monday, 10 August

Light rain. High 85°, low 67°.

Pressure30.03 inHg
Wind7.4 mph W
Humidity68%
Visibility6.2 mi
Dew point66°
Tue, 1186° / 66°0.58Heavy rain
86 °Heavy rain

St. Clair, Tuesday, 11 August

Heavy rain. High 86°, low 66°.

Pressure29.91 inHg
Wind5.7 mph NW
Humidity64%
Visibility6.2 mi
Dew point66°
Wed, 1279° / 66°0.06Light rain
79 °Light rain

St. Clair, Wednesday, 12 August

Light rain. High 79°, low 66°.

Pressure29.80 inHg
Wind8.3 mph NW
Humidity61%
Visibility6.2 mi
Dew point63°
Thu, 1377° / 61°0.04Light rain
77 °Light rain

St. Clair, Thursday, 13 August

Light rain. High 77°, low 61°.

Pressure29.80 inHg
Wind10.2 mph NW
Humidity69%
Visibility—
Dew point64°
Fri, 1473° / 54°0Clear
73 °Clear

St. Clair, Friday, 14 August

Clear. High 73°, low 54°.

Pressure29.97 inHg
Wind9.5 mph N
Humidity37%
Visibility—
Dew point43°
Sat, 1572° / 49°0Mostly clear
72 °Mostly clear

St. Clair, Saturday, 15 August

Mostly clear. High 72°, low 49°.

Pressure30.18 inHg
Wind11.9 mph N
Humidity37%
Visibility—
Dew point42°
Sun, 1676° / 49°0Clear
76 °Clear

St. Clair, Sunday, 16 August

Clear. High 76°, low 49°.

Pressure30.27 inHg
Wind5.6 mph NE
Humidity33%
Visibility—
Dew point42°
Mon, 1777° / 55°0Overcast
77 °Overcast

St. Clair, Monday, 17 August

Overcast. High 77°, low 55°.

Pressure30.15 inHg
Wind9.4 mph S
Humidity57%
Visibility—
Dew point58°
Tue, 1875° / 62°0.05Light rain
75 °Light rain

St. Clair, Tuesday, 18 August

Light rain. High 75°, low 62°.

Pressure29.97 inHg
Wind6.1 mph SW
Humidity87%
Visibility—
Dew point64°
Wed, 1977° / 59°0Partly cloudy
77 °Partly cloudy

St. Clair, Wednesday, 19 August

Partly cloudy. High 77°, low 59°.

Pressure29.91 inHg
Wind10.1 mph N
Humidity50%
Visibility—
Dew point55°
Thu, 2072° / 55°0Overcast
72 °Overcast

St. Clair, Thursday, 20 August

Overcast. High 72°, low 55°.

Pressure29.97 inHg
Wind4.4 mph SW
Humidity53%
Visibility—
Dew point52°
Fri, 2167° / 59°0.49Rain
67 °Rain

St. Clair, Friday, 21 August

Rain. High 67°, low 59°.

Pressure29.88 inHg
Wind6 mph SE
Humidity99%
Visibility—
Dew point63°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in St. Clair, PA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.