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As of 14:20 EDT

Weather in McHenry, PA

82°Current weather

McHenry, Saturday, 8 August, 14:20

Overcast. Feels like 86°. High 85°, low 68°.

Pressure29.97 inHg
Wind10.4 mph SW
Humidity70%
Visibility6.2 mi
Dew point70°
Sun, 0989° / 68°0Clear
89 °Clear

McHenry, Sunday, 9 August

Clear. High 89°, low 68°.

Pressure30.03 inHg
Wind5.8 mph W
Humidity46%
Visibility6.2 mi
Dew point60°
Mon, 1080° / 66°0.07Light rain
80 °Light rain

McHenry, Monday, 10 August

Light rain. High 80°, low 66°.

Pressure30.03 inHg
Wind9.6 mph W
Humidity66%
Visibility6.2 mi
Dew point64°
Tue, 1187° / 68°0.26Rain
87 °Rain

McHenry, Tuesday, 11 August

Rain. High 87°, low 68°.

Pressure29.91 inHg
Wind7.2 mph W
Humidity53%
Visibility6.2 mi
Dew point63°
Wed, 1280° / 65°0.04Light rain
80 °Light rain

McHenry, Wednesday, 12 August

Light rain. High 80°, low 65°.

Pressure29.80 inHg
Wind5.2 mph W
Humidity90%
Visibility6.2 mi
Dew point67°
Thu, 1380° / 61°0.19Light rain
80 °Light rain

McHenry, Thursday, 13 August

Light rain. High 80°, low 61°.

Pressure29.77 inHg
Wind11.7 mph SW
Humidity56%
Visibility—
Dew point61°
Fri, 1475° / 52°0Overcast
75 °Overcast

McHenry, Friday, 14 August

Overcast. High 75°, low 52°.

Pressure30.03 inHg
Wind10.7 mph NW
Humidity53%
Visibility—
Dew point49°
Sat, 1576° / 50°0Partly cloudy
76 °Partly cloudy

McHenry, Saturday, 15 August

Partly cloudy. High 76°, low 50°.

Pressure30.12 inHg
Wind9.7 mph NW
Humidity35%
Visibility—
Dew point44°
Sun, 1680° / 53°0.01Light rain
80 °Light rain

McHenry, Sunday, 16 August

Light rain. High 80°, low 53°.

Pressure30.15 inHg
Wind9.4 mph NW
Humidity30%
Visibility—
Dew point43°
Mon, 1772° / 53°0Overcast
72 °Overcast

McHenry, Monday, 17 August

Overcast. High 72°, low 53°.

Pressure30.18 inHg
Wind7.3 mph S
Humidity45%
Visibility—
Dew point48°
Tue, 1861° / 52°0.2Light rain
61 °Light rain

McHenry, Tuesday, 18 August

Light rain. High 61°, low 52°.

Pressure30.09 inHg
Wind7.9 mph SE
Humidity90%
Visibility—
Dew point57°
Wed, 1973° / 60°0.25Rain
73 °Rain

McHenry, Wednesday, 19 August

Rain. High 73°, low 60°.

Pressure29.85 inHg
Wind7.3 mph W
Humidity86%
Visibility—
Dew point67°
Thu, 2068° / 47°0.02Light rain
68 °Light rain

McHenry, Thursday, 20 August

Light rain. High 68°, low 47°.

Pressure29.97 inHg
Wind10.4 mph N
Humidity43%
Visibility—
Dew point43°
Fri, 2169° / 43°0Clear
69 °Clear

McHenry, Friday, 21 August

Clear. High 69°, low 43°.

Pressure30.09 inHg
Wind9.9 mph N
Humidity35%
Visibility—
Dew point37°
Sat, 2267° / 47°0.03Light rain
67 °Light rain

McHenry, Saturday, 22 August

Light rain. High 67°, low 47°.

Pressure30.06 inHg
Wind7.8 mph W
Humidity51%
Visibility—
Dew point45°
Sun, 2372° / 50°0.19Light rain
72 °Light rain

McHenry, Sunday, 23 August

Light rain. High 72°, low 50°.

Pressure30.03 inHg
Wind8.2 mph W
Humidity37%
Visibility—
Dew point42°

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 McHenry, 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 McHenry, 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.