DENNIS, MA 02638 Weather Forecast & Current Conditions

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02638 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
HYANNIS, MA Current Weather
10:56 PM EDT MAY 19, 2026
Clear 66°F
Feels Like:	66°F
Dewpoint:	61°F
Rel. Hum.:	84%
Visibility:	10 miles
Wind:	SW at 17 mph, gusts to 29
Pressure:	29.95 inches
Last 72 hours
Local Area Snow Depth
Massachusetts Current Weather
Massachusetts MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

02638 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	DENNIS, MA 02638 Weather Forecast	Snowfall Forecast pages Snow Depth pages

OVERNIGHT
Mostly cloudy. Patchy fog. Near steady temperature in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

WEDNESDAY
Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.

WEDNESDAY NIGHT
Mostly cloudy. A chance of showers in the evening. Lows in the mid 50s. West winds 5 to 10 mph, becoming northwest after midnight. Gusts up to 20 mph. Chance of rain 40 percent.

THURSDAY
Partly sunny. Cooler with highs in the mid 60s. North winds 5 to 10 mph with gusts up to 20 mph, becoming northeast in the afternoon.

THURSDAY NIGHT
Partly cloudy. Lows in the lower 50s. South winds around 5 mph, becoming northwest after midnight.

FRIDAY
Mostly sunny. Highs in the mid 60s.

FRIDAY NIGHT
Mostly cloudy with a 30 percent chance of showers. Lows in the lower 50s.

SATURDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the lower 60s.

SATURDAY NIGHT AND SUNDAY
Showers likely. Lows around 50. Highs in the lower 60s. Chance of rain 60 percent.

SUNDAY NIGHT AND MEMORIAL DAY
Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s. Highs in the mid 60s.

MONDAY NIGHT AND TUESDAY
Mostly cloudy. Lows in the lower 50s. Highs in the upper 60s.

02638 WEATHER SATELLITE LOOPS

Visible Weather Satellite
DENNIS, MA 02638

Infrared Weather Satellite
DENNIS, MA 02638

02638 WEATHER RADAR LOOP

NEXRAD Weather Radar
DENNIS, MA 02638

MOS COMPUTER WEATHER FORECAST

HYANNIS, MA 3 hourly weather forecast

weather forecast created 8:00 AM EDT 5/19/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
19 MAY 2026

2 PM

73°

73°

Clear

4%

0% Thunder
( 8% severe)

SW 17

66%

61°

High 74°

5 PM

69°

69°

Partly Cloudy

SW 17

70%

59°

Increasing Clouds

8 PM

63°

61°

Mostly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 13% severe)

SW 14

84%

58°

11 PM

63°

62°

Mostly Cloudy

SW 12

87%

59°

Wednesday
20 MAY 2026

2 AM

63°

62°

Mostly Cloudy

3%

0% Thunder
( 2% severe)

SW 10

84%

58°

Low 61°

5 AM

63°

62°

Mostly Cloudy

SW 12

84%

58°

High 77°

8 AM

67°

67°

Partly Cloudy

4%

0% Thunder
( 2% severe)

SW 12

75%

59°

Partly Cloudy

Chance of Rain

11 AM

73°

73°

Partly Cloudy

SW 14

64%

60°

2 PM

75°

75°

Clear

35%
RAIN
***

0% Thunder
( 20% severe)

SW 16

60%

60°

5 PM

71°

71°

Partly Cloudy

WSW 15

63%

58°

8 PM

66°

66°

Partly Cloudy

35%
RAIN
.01–.1 in

0% Thunder
( 13% severe)

WSW 8

78%

59°

11 PM

66°

66°

Partly Cloudy

W 7

78%

59°

Thursday
21 MAY 2026

2 AM

63°

63°

Mostly Cloudy

9%

0% Thunder
( 1% severe)

NW 7

70%

53°

Low 54°

5 AM

59°

57°

Mostly Cloudy

N 10

67%

48°

High 63°

8 AM

59°

57°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

N 10

60%

45°

Mostly Cloudy

11 AM

60°

58°

Mostly Cloudy

NNE 12

49%

41°

2 PM

60°

59°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

NE 9

46%

39°

5 PM

58°

58°

Partly Cloudy

E 5

47%

38°

8 PM

54°

54°

Mostly Cloudy

CALM

59%

40°


HYANNIS, MA extended weather forecast
Friday 22 MAY 2026	Saturday 23 MAY 2026	Sunday 24 MAY 2026	Monday 25 MAY 2026	Tuesday 26 MAY 2026
Low 44°	Low 48°	Low 47°	Low 45°	Low 53°
High 65°	High 63°	High 65°	High 63°	High 66°

Partly Cloudy 5% Rain	Overcast 17% Rain	Mostly Cloudy 16% Rain	Overcast 42% Rain	Overcast 59% Rain

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