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As of 11:40 EDT

Weather in West St. Clair, PA

81°Current weather

West St. Clair, Sunday, 9 August, 11:40

Partly cloudy. Feels like 84°. High 83°, low 67°.

Pressure30.09 inHg
Wind8.2 mph W
Humidity68%
Visibility6.2 mi
Dew point69°

Two-week outlook for West St. Clair, PA: week one averages a high of 78° and week two 74.1°, so week two runs 3.9° cooler than week one. Around 1.3 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, August 9: 83°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)78°60.5°1.0 in / 3 d—
2nd (August 16 – August 22)74.1°53.7°0.3 in / 3 d—

Weekend weather

Sun, August 9
Light rain
83°67°
no precip.
Sat, August 15
Overcast
71°51°
no precip.
Sun, August 16
Light rain
63°48°
0.05 in
Sat, August 22
Light rain
83°55°
0.11 in
Mon, 1083° / 65°0.24Heavy rain
83 °Heavy rain

West St. Clair, Monday, 10 August

Heavy rain. High 83°, low 65°.

Pressure30.03 inHg
Wind10.5 mph W
Humidity64%
Visibility6.2 mi
Dew point66°
Tue, 1178° / 63°0.67Heavy rain
78 °Heavy rain

West St. Clair, Tuesday, 11 August

Heavy rain. High 78°, low 63°.

Pressure29.97 inHg
Wind10.3 mph NW
Humidity71%
Visibility6.2 mi
Dew point64°
Wed, 1282° / 63°0.13Light rain
82 °Light rain

West St. Clair, Wednesday, 12 August

Light rain. High 82°, low 63°.

Pressure29.83 inHg
Wind10.1 mph SW
Humidity64%
Visibility6.2 mi
Dew point63°
Thu, 1376° / 60°0.01Light rain
76 °Light rain

West St. Clair, Thursday, 13 August

Light rain. High 76°, low 60°.

Pressure29.94 inHg
Wind12.1 mph NW
Humidity37%
Visibility—
Dew point46°
Fri, 1473° / 55°0Light rain
73 °Light rain

West St. Clair, Friday, 14 August

Light rain. High 73°, low 55°.

Pressure30.06 inHg
Wind4.5 mph NW
Humidity53%
Visibility—
Dew point52°
Sat, 1571° / 51°0Overcast
71 °Overcast

West St. Clair, Saturday, 15 August

Overcast. High 71°, low 51°.

Pressure30.24 inHg
Wind7.8 mph N
Humidity39%
Visibility—
Dew point43°
Sun, 1663° / 48°0.05Light rain
63 °Light rain

West St. Clair, Sunday, 16 August

Light rain. High 63°, low 48°.

Pressure30.15 inHg
Wind4.1 mph SE
Humidity89%
Visibility—
Dew point54°
Mon, 1772° / 58°0Light rain
72 °Light rain

West St. Clair, Monday, 17 August

Light rain. High 72°, low 58°.

Pressure29.94 inHg
Wind10.2 mph NW
Humidity68%
Visibility—
Dew point60°
Tue, 1879° / 54°0Overcast
79 °Overcast

West St. Clair, Tuesday, 18 August

Overcast. High 79°, low 54°.

Pressure29.97 inHg
Wind4.5 mph S
Humidity40%
Visibility—
Dew point50°
Wed, 1977° / 58°0.08Light rain
77 °Light rain

West St. Clair, Wednesday, 19 August

Light rain. High 77°, low 58°.

Pressure29.80 inHg
Wind11.4 mph SW
Humidity69%
Visibility—
Dew point63°
Thu, 2070° / 52°0.01Light rain
70 °Light rain

West St. Clair, Thursday, 20 August

Light rain. High 70°, low 52°.

Pressure29.85 inHg
Wind11.5 mph NW
Humidity68%
Visibility—
Dew point56°
Fri, 2174° / 50°0Mostly clear
74 °Mostly clear

West St. Clair, Friday, 21 August

Mostly clear. High 74°, low 50°.

Pressure29.91 inHg
Wind7.7 mph W
Humidity35%
Visibility—
Dew point42°
Sat, 2283° / 55°0.11Light rain
83 °Light rain

West St. Clair, Saturday, 22 August

Light rain. High 83°, low 55°.

Pressure29.85 inHg
Wind9.4 mph S
Humidity39%
Visibility—
Dew point53°

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 West 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.