HARWICH PORT, MA 02646 Weather Forecast & Current Conditions

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02646 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
CHATHAM, MA Current Weather
11:52 PM EDT JUL 8, 2025
Overcast Mist 73°F
Feels Like:	73°F
Dewpoint:	73°F
Rel. Hum.:	100%
Visibility:	1 1/4 miles
Wind:	Variable at 5 mph
Pressure:	29.98 inches
Last 72 hours
Local Area Snow Depth
Massachusetts Current Weather
Massachusetts MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

02646 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	HARWICH PORT, MA 02646 Weather Forecast	Snowfall Forecast pages Snow Depth pages

OVERNIGHT
Mostly cloudy with a chance of showers and thunderstorms. Patchy fog. Some thunderstorms may be severe with frequent lightning and heavy rainfall. Visibility one quarter mile or less at times. Near steady temperature around 70. Southwest winds around 5 mph. Chance of rain 50 percent.

WEDNESDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Patchy fog in the morning. Some thunderstorms may produce frequent lightning and heavy rainfall in the morning. Humid with highs in the upper 70s. West winds 5 to 10 mph. Chance of rain 50 percent.

WEDNESDAY NIGHT
Mostly cloudy with a chance of showers. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 30 percent.

THURSDAY
Mostly cloudy with a 50 percent chance of showers. Humid with highs in the mid 70s. East winds 5 to 10 mph.

THURSDAY NIGHT
Cloudy with a chance of showers and thunderstorms. Humid with lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 50 percent.

FRIDAY
Mostly cloudy with a 40 percent chance of showers. Highs in the upper 70s.

FRIDAY NIGHT THROUGH SUNDAY
Mostly cloudy. Lows in the upper 60s. Highs around 80.

SUNDAY NIGHT
Partly cloudy. Lows in the upper 60s.

MONDAY
Partly sunny. Highs in the lower 80s.

MONDAY NIGHT
Partly cloudy. Lows in the upper 60s.

TUESDAY
Partly sunny. Highs in the lower 80s.

02646 WEATHER SATELLITE LOOPS

Visible Weather Satellite
HARWICH PORT, MA 02646

Infrared Weather Satellite
HARWICH PORT, MA 02646

02646 WEATHER RADAR LOOP

NEXRAD Weather Radar
HARWICH PORT, MA 02646

MOS COMPUTER WEATHER FORECAST

CHATHAM, MA 3 hourly weather forecast

weather forecast created 5:00 AM PDT 7/ 8/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
8 JUL 2025

2 PM

81°

85°

Clear

24%
RAIN
***

0% Thunder
( 24% severe)

SW 9

74%

72°

High 82°

5 PM

77°

79°

Partly Cloudy

SW 8

82%

71°

Increasing Clouds

Chance of Rain

8 PM

73°

73°

Mostly Cloudy

40%
RAIN
***

0% Thunder
( 32% severe)

SW 6

90%

70°

11 PM

71°

71°

Mostly Cloudy

SW 5

93%

69°

Wednesday
9 JUL 2025

2 AM

70°

70°

Mostly Cloudy

57%
RAIN
***

0% Thunder
( 36% severe)

W 3

97%

69°

Low 69°

5 AM

70°

70°

Mostly Cloudy

W 3

97%

69°

High 77°

8 AM

72°

72°

Mostly Cloudy

30%
RAIN
***

0% Thunder
( 15% severe)

WSW 3

90%

69°

Mostly Cloudy

Chance of Rain

11 AM

74°

74°

Mostly Cloudy

WSW 6

84%

69°

2 PM

75°

75°

Mostly Cloudy

9%

0% Thunder
( 6% severe)

SW 6

82%

69°

5 PM

73°

73°

Mostly Cloudy

WSW 5

84%

68°

8 PM

70°

70°

Mostly Cloudy

9%

0% Thunder
( 9% severe)

E 2

93%

68°

11 PM

68°

68°

Mostly Cloudy

S 1

93%

66°

Thursday
10 JUL 2025

2 AM

67°

67°

Mostly Cloudy

23%
RAIN
***

0% Thunder
( 11% severe)

SW 1

97%

66°

Low 66°

5 AM

67°

67°

Mostly Cloudy

NE 2

97%

66°

High 76°

8 AM

70°

70°

Mostly Cloudy

31%
RAIN
***

0% Thunder
( 7% severe)

E 3

90%

67°

Mostly Cloudy

Chance of Rain

11 AM

72°

72°

Mostly Cloudy

SE 6

84%

67°

2 PM

73°

73°

Mostly Cloudy

22%
RAIN
***

0% Thunder
( 10% severe)

SSE 7

81%

67°

5 PM

71°

71°

Mostly Cloudy

SSE 6

87%

67°

8 PM

69°

69°

Mostly Cloudy

S 5

93%

67°


CHATHAM, MA extended weather forecast
Friday 11 JUL 2025	Saturday 12 JUL 2025	Sunday 13 JUL 2025	Monday 14 JUL 2025	Tuesday 15 JUL 2025
Low 63°	Low 67°	Low 68°	Low 69°	Low 67°
High 75°	High 78°	High 82°	High 80°	High 82°

Overcast 57% Rain	Overcast 35% Rain	Overcast 42% Rain	Mostly Cloudy 43% Rain	Partly Cloudy 25% Rain

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