Marine Weather Net

Hyannis, MA Weather Forecast


Marine Forecast: Nantucket Sound


Hyannis, Massachusetts

 Lat: 41.65N, Lon: 70.28W

Current Conditions Updated: 256 PM EDT WED OCT 8 2025

Light Rain
Temp: 57°F
  • Humidity:
  • 93%
  • Winds:
  • 9 MPH NNW
  • Gusts:
  • 25 MPH
  • Barometer:
  • 29.92 in.
  • Dewpoint:
  • 55°F
  • Heat index:
  • 57°F

  • Sunrise:
  • 6:43 AM EDT
  • Sunset:
  • 6:11 PM EDT
  • Moonrise:
  • 6:48 PM EDT
  • Moonset:
  • 8:36 AM EDT

THIS AFTERNOON

THUNDER STORMS
Hi: 71°F
Lo: 47°F
Precip: 100%

THURSDAY

SUNNY

Hi: 59°F
Lo: 39°F

FRIDAY

SUNNY

Hi: 61°F
Lo: 51°F

SATURDAY

MOSTLY SUNNY
Hi: 65°F
Lo: 51°F
Weather Forecast In Detail:
Forecast Issued: 102 PM EDT Wed Oct 08 2025

This Afternoon...Showers with isolated thunderstorms. Patchy fog. Highs in the lower 70s. Temperature falling into the lower 60s late. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.
Tonight...Mostly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Patchy fog in the evening. Much cooler. Less humid with lows in the upper 40s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent.
Thursday...Sunny, cooler with highs in the upper 50s. North winds 15 to 20 mph with gusts up to 30 mph.
Thursday Night...Mostly clear. Lows in the upper 30s. North winds 10 to 15 mph. Gusts up to 25 mph in the evening.
Friday...Sunny. Highs in the lower 60s. North winds around 5 mph, becoming southwest in the afternoon.
Friday Night...Mostly clear. Not as cool with lows in the lower 50s.
Saturday...Mostly sunny. Highs in the mid 60s.
Saturday Night...Mostly cloudy. Lows in the lower 50s.
Sunday...Partly sunny with a 40 percent chance of showers. Breezy with highs in the lower 60s.
Sunday Night...Mostly cloudy with a chance of showers. Breezy. Near steady temperature in the mid 50s. Chance of rain 50 percent.
Columbus Day Through Tuesday...Mostly cloudy with a 40 percent chance of showers. Breezy. Highs in the mid 60s. Lows in the mid 50s.
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