South Dennis, MA Weather Tomorrow

Get the forecast you need for South Dennis tomorrow with an extended 5 day weather outlook featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction throughout the South Dennis area and around Barnstable county, Massachusetts.
Updated: Tue Sep 22nd 2026 5:00 AM EDT
South Dennis, MA Weather – 9-22 – Overcast
62° / 57°
Overcast
South Dennis could see cloud-filled skies with daytime highs of 62°F and nighttime lows near 57°F. There's a moderate 26% chance of rainfall with an estimated 0in. Wind will be moderate, blowing around 19mph on average and gusts of 21.7mph at 10 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 69% at 6 AM and 63% being its lowest at 2 PM. Barometric pressure is its highest of 30.4inHg at 9 PM, a lowest point of 30.26inHg at 6 AM with an avg 30.34inHg.
South Dennis, MA Weather – 9-23 – Scattered Showers
61° / 58°

Weather Tomorrow

Scattered Showers
In South Dennis, showers likely at times with highs near 61°F and lows around 58°F. There's a moderate 43% chance of rainfall with an estimated 0.02in. Winds will be strong at speeds peaking at 23mph and gusts of 28mph at 9 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 72% at 9 AM and 60% being its lowest at 9 PM. Barometric pressure is its highest of 30.48inHg at 11 AM, a lowest point of 30.4inHg at 12 AM with an avg 30.45inHg.
South Dennis, MA Weather – 9-24 – Overcast
61° / 58°
Overcast
Highs will reach 61°F with lows near 58°F in South Dennis, where overcast is. There might be light rainfall having a 18% chance with an estimated 0in. Winds will be strong at speeds peaking at 26mph and gusts of 34.5mph at 11 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 70% at 6 PM and 63% being its lowest at 11 AM. Barometric pressure is its highest of 30.45inHg at 12 AM, a lowest point of 30.21inHg at 11 PM with an avg 30.37inHg.
South Dennis, MA Weather – 9-25 – Light Rain Shower
60° / 56°
Light Rain Shower
Highs will reach 60°F with lows near 56°F in South Dennis, where rain is. The chance of rain is 91% with an estimated 1.45in. Winds will be strong at speeds peaking at 39mph and gusts of 55.5mph at 9 AM. High humidity with average of 87% is anticipated, the maximum being 94% at 6 PM and 63% being its lowest at 12 AM. Barometric pressure is its highest of 30.19inHg at 12 AM, a lowest point of 29.64inHg at 11 PM with an avg 29.91inHg.
South Dennis, MA Weather – 9-26 – Light Rain Shower
63° / 57°
Light Rain Shower
It will rain at times in South Dennis, with a high of 63°F and a low of 57°F. The chance of rain is 91% with an estimated 1.3in. Winds will be strong at speeds peaking at 37mph and gusts of 52.6mph at 1 AM. High humidity with average of 91% is anticipated, the maximum being 97% at 2 PM and 69% being its lowest at 7 AM. Barometric pressure is its highest of 30inHg at 7 AM, a lowest point of 29.61inHg at 2 AM with an avg 29.75inHg.
South Dennis, MA Weather – 9-27 – Light Rain Shower
62° / 60°
Light Rain Shower
In South Dennis, rain is likely with a high near 62°F and a low around 60°F. The chance of rain is 92% with an estimated 0.61in. Winds will be strong at speeds peaking at 30mph and gusts of 42.7mph at 12 AM. High humidity with average of 92% is anticipated, the maximum being 96% at 5 AM and 87% being its lowest at 11 PM. Barometric pressure is its highest of 30.05inHg at 11 PM, a lowest point of 29.73inHg at 2 AM with an avg 29.88inHg.

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