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As of 04:57 EDT

Weather in Slippery Rock, PA

65°Current weather

Slippery Rock, Sunday, 9 August, 04:57

Clear. Feels like 66°. High 85°, low 65°.

Pressure30.03 inHg
Wind4.5 mph W
Humidity91%
Visibility6.2 mi
Dew point63°
Mon, 1081° / 67°1.13Heavy rain
81 °Heavy rain

Slippery Rock, Monday, 10 August

Heavy rain. High 81°, low 67°.

Pressure29.97 inHg
Wind9.6 mph SW
Humidity69%
Visibility6.2 mi
Dew point66°
Tue, 1183° / 60°0.92Heavy rain
83 °Heavy rain

Slippery Rock, Tuesday, 11 August

Heavy rain. High 83°, low 60°.

Pressure29.94 inHg
Wind6.7 mph W
Humidity68%
Visibility6.2 mi
Dew point66°
Wed, 1278° / 63°0.04Light rain
78 °Light rain

Slippery Rock, Wednesday, 12 August

Light rain. High 78°, low 63°.

Pressure29.80 inHg
Wind7.1 mph W
Humidity94%
Visibility6.2 mi
Dew point67°
Thu, 1372° / 57°0.09Light rain
72 °Light rain

Slippery Rock, Thursday, 13 August

Light rain. High 72°, low 57°.

Pressure29.91 inHg
Wind13.4 mph NW
Humidity48%
Visibility—
Dew point50°
Fri, 1470° / 51°0Overcast
70 °Overcast

Slippery Rock, Friday, 14 August

Overcast. High 70°, low 51°.

Pressure30.09 inHg
Wind9.3 mph NW
Humidity50%
Visibility—
Dew point49°
Sat, 1570° / 49°0Overcast
70 °Overcast

Slippery Rock, Saturday, 15 August

Overcast. High 70°, low 49°.

Pressure30.24 inHg
Wind8.5 mph NW
Humidity46%
Visibility—
Dew point46°
Sun, 1669° / 51°0Overcast
69 °Overcast

Slippery Rock, Sunday, 16 August

Overcast. High 69°, low 51°.

Pressure30.18 inHg
Wind5.2 mph E
Humidity62%
Visibility—
Dew point49°
Mon, 1775° / 53°0Mostly clear
75 °Mostly clear

Slippery Rock, Monday, 17 August

Mostly clear. High 75°, low 53°.

Pressure30.03 inHg
Wind6 mph NW
Humidity46%
Visibility—
Dew point50°
Tue, 1877° / 58°0Clear
77 °Clear

Slippery Rock, Tuesday, 18 August

Clear. High 77°, low 58°.

Pressure30.06 inHg
Wind6.6 mph NW
Humidity47%
Visibility—
Dew point53°
Wed, 1980° / 57°0Mostly clear
80 °Mostly clear

Slippery Rock, Wednesday, 19 August

Mostly clear. High 80°, low 57°.

Pressure30.06 inHg
Wind4.3 mph E
Humidity48%
Visibility—
Dew point56°
Thu, 2087° / 63°0Clear
87 °Clear

Slippery Rock, Thursday, 20 August

Clear. High 87°, low 63°.

Pressure29.94 inHg
Wind9.3 mph SW
Humidity44%
Visibility—
Dew point59°
Fri, 2193° / 66°0.07Light rain
93 °Light rain

Slippery Rock, Friday, 21 August

Light rain. High 93°, low 66°.

Pressure29.83 inHg
Wind8.2 mph N
Humidity56%
Visibility—
Dew point71°
Sat, 2286° / 63°0Mostly clear
86 °Mostly clear

Slippery Rock, Saturday, 22 August

Mostly clear. High 86°, low 63°.

Pressure29.97 inHg
Wind6.2 mph NE
Humidity36%
Visibility—
Dew point54°
Sun, 2392° / 67°0.08Light rain
92 °Light rain

Slippery Rock, Sunday, 23 August

Light rain. High 92°, low 67°.

Pressure29.94 inHg
Wind7.9 mph S
Humidity46%
Visibility—
Dew point64°
Mon, 2486° / 74°0.22Rain
86 °Rain

Slippery Rock, Monday, 24 August

Rain. High 86°, low 74°.

Pressure30.00 inHg
Wind9.6 mph NW
Humidity63%
Visibility—
Dew point70°

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 Slippery Rock, 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 Slippery Rock, 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.