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As of 04:49 EDT

Weather in Southwest, PA

65°Current weather

Southwest, Sunday, 9 August, 04:49

Clear. Feels like 66°. High 84°, low 65°.

Pressure30.00 inHg
Wind2.8 mph W
Humidity99%
Visibility6.2 mi
Dew point65°
Mon, 1079° / 65°0.4Heavy rain
79 °Heavy rain

Southwest, Monday, 10 August

Heavy rain. High 79°, low 65°.

Pressure29.97 inHg
Wind11.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point64°
Tue, 1183° / 62°0.45Heavy rain
83 °Heavy rain

Southwest, Tuesday, 11 August

Heavy rain. High 83°, low 62°.

Pressure29.94 inHg
Wind8.2 mph W
Humidity55%
Visibility6.2 mi
Dew point61°
Wed, 1280° / 62°0.01Light rain
80 °Light rain

Southwest, Wednesday, 12 August

Light rain. High 80°, low 62°.

Pressure29.80 inHg
Wind6.9 mph SW
Humidity90%
Visibility6.2 mi
Dew point65°
Thu, 1371° / 55°0.16Light rain
71 °Light rain

Southwest, Thursday, 13 August

Light rain. High 71°, low 55°.

Pressure29.91 inHg
Wind12.5 mph NW
Humidity43%
Visibility—
Dew point46°
Fri, 1469° / 50°0Partly cloudy
69 °Partly cloudy

Southwest, Friday, 14 August

Partly cloudy. High 69°, low 50°.

Pressure30.09 inHg
Wind10.1 mph NW
Humidity47%
Visibility—
Dew point46°
Sat, 1570° / 46°0Partly cloudy
70 °Partly cloudy

Southwest, Saturday, 15 August

Partly cloudy. High 70°, low 46°.

Pressure30.24 inHg
Wind9.5 mph N
Humidity40%
Visibility—
Dew point42°
Sun, 1671° / 48°0Overcast
71 °Overcast

Southwest, Sunday, 16 August

Overcast. High 71°, low 48°.

Pressure30.15 inHg
Wind3.7 mph NW
Humidity59%
Visibility—
Dew point51°
Mon, 1774° / 53°0Light rain
74 °Light rain

Southwest, Monday, 17 August

Light rain. High 74°, low 53°.

Pressure30.03 inHg
Wind7.4 mph NW
Humidity45%
Visibility—
Dew point49°
Tue, 1879° / 56°0Clear
79 °Clear

Southwest, Tuesday, 18 August

Clear. High 79°, low 56°.

Pressure30.03 inHg
Wind7.3 mph NW
Humidity40%
Visibility—
Dew point50°
Wed, 1982° / 55°0Partly cloudy
82 °Partly cloudy

Southwest, Wednesday, 19 August

Partly cloudy. High 82°, low 55°.

Pressure30.06 inHg
Wind3.5 mph E
Humidity34%
Visibility—
Dew point48°
Thu, 2087° / 60°0Clear
87 °Clear

Southwest, Thursday, 20 August

Clear. High 87°, low 60°.

Pressure29.94 inHg
Wind9.7 mph S
Humidity37%
Visibility—
Dew point55°
Fri, 2191° / 66°0.01Light rain
91 °Light rain

Southwest, Friday, 21 August

Light rain. High 91°, low 66°.

Pressure29.83 inHg
Wind10.6 mph NW
Humidity51%
Visibility—
Dew point68°
Sat, 2286° / 60°0Clear
86 °Clear

Southwest, Saturday, 22 August

Clear. High 86°, low 60°.

Pressure29.97 inHg
Wind5.5 mph N
Humidity33%
Visibility—
Dew point50°
Sun, 2389° / 64°0.01Light rain
89 °Light rain

Southwest, Sunday, 23 August

Light rain. High 89°, low 64°.

Pressure29.94 inHg
Wind7.1 mph W
Humidity48%
Visibility—
Dew point62°
Mon, 2485° / 69°0.11Light rain
85 °Light rain

Southwest, Monday, 24 August

Light rain. High 85°, low 69°.

Pressure30.00 inHg
Wind7.9 mph N
Humidity62%
Visibility—
Dew point68°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Southwest, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Southwest, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.