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Dennis, Massachusetts Weather

Dennis, Massachusetts — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast, soil and crop conditions for Dennis, Barnstable County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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🌊 Marine & Fishing

Tides, marine forecast and fishing conditions near Dennis. Tide source:

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🎣 Best times to fish today (solunar)
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✈️ Aviation Weather

Full aviation weather for Dennis is published on the Cape Cod Gateway Airport (KHYA) page, 10 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Dennis have their own pages, listed below.

The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.

Other airports near Dennis: Chatham Municipal Airport (KCQX) 18 km · Cape Cod Coast Guard Air Station (KFMH) 28 km · Provincetown Municipal Airport (KPVC) 38 km · Plymouth Municipal Airport (KPYM) 48 km · Martha's Vineyard Airport (KMVY) 52 km

Conditions reported at KHYA describe the airfield itself. Weather 10 km away can differ, particularly in terrain or near the coast. For conditions at Dennis specifically, see the current conditions and forecast above.

🚜 Agricultural Weather

Soil conditions, frost risk and crop weather for Dennis.

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About Dennis, Massachusetts

Dennis sprawls across the mid-Cape, a landscape shaped by the relentless push and pull of the Atlantic and the quieter, reflective waters of its bays. It lies 5.8 miles south-south-west of Cape Cod, MA (from Cape Cod, MA: bearing 205°T), and is situated 6.0 miles east-north-east of Barnstable. Rolling hills, softened by centuries of wind and weather, give way to the sandy textures of Cape Cod, where scrub pine and bayberry cling tenaciously to the earth. The air here carries the brine of the sea, a constant reminder of the ocean's proximity, and in the late afternoon, the light often takes on a diffused, hazy quality, softening the edges of the dunes and casting long shadows across the marsh grasses. Water is the dominant character, from the vibrant blue of Nantucket Sound to the whispering channels of the Bass River and the tranquil expanse of Cape Cod Bay, all of which dictate the flow of life and the very breath of Dennis. The history of Dennis is deeply entwined with the sea and the ingenuity of its people. Established in 1793, it was once a vital hub for whaling, its seafaring heritage evident in the weathered clapboard houses that still line some of its older roads. Today, its economy draws strength from tourism, with visitors drawn to its pristine beaches and the allure of the Cape's distinctive charm, yet it retains a working spirit, particularly in the fishing fleets that still ply the waters of the bays. The Cape Cod Canal, a modern marvel of engineering, bisects the Cape, subtly altering the traditional flow of traffic and commerce, and in Dennis, this intersection of old and new rhythms is palpable, a quiet hum beneath the surface of everyday life.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Dennis and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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LocationDennis, Barnstable County, Massachusetts
Coordinates41.735387°N, 70.193909°W
TimezoneEastern Time (America/New_York)
ZIP Code(s)02638
Area Code339, 351, 413, 508, 617, 774, 781, 857, 978
Page generatedSeptember 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Dennis, Massachusetts Weather Page

This page provides live weather conditions and forecasts for Dennis, Massachusetts, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.

Location data for Dennis includes coordinates 41.735387°N, 70.193909°W, situated in Barnstable County. ZIP code 02638. Telephone area code: 339, 351, 413, 508, 617, 774, 781, 857, 978. Timezone: Eastern Time (America/New_York).

Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.