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As of 19:22 EDT

Weather in Dennis, MA

78°Current weather

Dennis, Saturday, 8 August, 19:22

Clear. Feels like 80°. High 88°, low 72°.

Pressure29.85 inHg
Wind8 mph SW
Humidity85%
Visibility6.2 mi
Dew point73°
Sun, 0993° / 72°0Clear
93 °Clear

Dennis, Sunday, 9 August

Clear. High 93°, low 72°.

Pressure29.91 inHg
Wind5.6 mph W
Humidity59%
Visibility6.2 mi
Dew point67°
Mon, 1083° / 71°0Light rain
83 °Light rain

Dennis, Monday, 10 August

Light rain. High 83°, low 71°.

Pressure29.97 inHg
Wind8 mph S
Humidity54%
Visibility6.2 mi
Dew point63°
Tue, 1181° / 73°0Overcast
81 °Overcast

Dennis, Tuesday, 11 August

Overcast. High 81°, low 73°.

Pressure29.80 inHg
Wind9.7 mph W
Humidity53%
Visibility6.2 mi
Dew point62°
Wed, 1273° / 64°0.15Light rain
73 °Light rain

Dennis, Wednesday, 12 August

Light rain. High 73°, low 64°.

Pressure29.74 inHg
Wind18.1 mph E
Humidity84%
Visibility6.2 mi
Dew point62°
Thu, 1380° / 63°0.08Light rain
80 °Light rain

Dennis, Thursday, 13 August

Light rain. High 80°, low 63°.

Pressure29.74 inHg
Wind15.9 mph NW
Humidity72%
Visibility—
Dew point64°
Fri, 1474° / 62°0Overcast
74 °Overcast

Dennis, Friday, 14 August

Overcast. High 74°, low 62°.

Pressure29.91 inHg
Wind12.7 mph N
Humidity54%
Visibility—
Dew point49°
Sat, 1570° / 65°0Clear
70 °Clear

Dennis, Saturday, 15 August

Clear. High 70°, low 65°.

Pressure30.09 inHg
Wind12.5 mph NW
Humidity69%
Visibility—
Dew point56°
Sun, 1671° / 66°0.02Light rain
71 °Light rain

Dennis, Sunday, 16 August

Light rain. High 71°, low 66°.

Pressure30.27 inHg
Wind8.7 mph SW
Humidity55%
Visibility—
Dew point52°
Mon, 1776° / 65°0Overcast
76 °Overcast

Dennis, Monday, 17 August

Overcast. High 76°, low 65°.

Pressure30.24 inHg
Wind14.3 mph S
Humidity48%
Visibility—
Dew point53°
Tue, 1876° / 70°0.53Rain
76 °Rain

Dennis, Tuesday, 18 August

Rain. High 76°, low 70°.

Pressure30.06 inHg
Wind18.6 mph S
Humidity63%
Visibility—
Dew point62°
Wed, 1972° / 67°0.24Rain
72 °Rain

Dennis, Wednesday, 19 August

Rain. High 72°, low 67°.

Pressure29.85 inHg
Wind11.1 mph N
Humidity84%
Visibility—
Dew point66°
Thu, 2072° / 65°0Overcast
72 °Overcast

Dennis, Thursday, 20 August

Overcast. High 72°, low 65°.

Pressure29.97 inHg
Wind9.8 mph NE
Humidity71%
Visibility—
Dew point61°
Fri, 2173° / 66°0.38Rain
73 °Rain

Dennis, Friday, 21 August

Rain. High 73°, low 66°.

Pressure30.03 inHg
Wind15.5 mph SE
Humidity54%
Visibility—
Dew point54°
Sat, 2275° / 68°0.98Rain
75 °Rain

Dennis, Saturday, 22 August

Rain. High 75°, low 68°.

Pressure29.80 inHg
Wind14.2 mph SE
Humidity91%
Visibility—
Dew point67°
Sun, 2370° / 64°0Mostly clear
70 °Mostly clear

Dennis, Sunday, 23 August

Mostly clear. High 70°, low 64°.

Pressure29.80 inHg
Wind18.2 mph NW
Humidity54%
Visibility—
Dew point50°

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 Dennis, MA 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 Dennis, MA 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.