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Hazardous Weather Conditions

No active alerts for SOUTH DENNIS, MASSACHUSETTS

Current Conditions: SOUTH DENNIS, MASSACHUSETTS

Fog/Mist


26.6 F
Last Updated on Mar 1 2026, 02:00 AM EST
Humidity: 100%
Wind Speed: 0.0 mph
Barometer: 29.97 in
Dewpoint: 26.6 F
Visibility: 4.00 mi
Precip: --
Heat Index: NA
Wind Chill: NA
Current conditions at:

HYANNIS (KHYA)

Lat: 41.67 Lon: -70.28

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5 Day Forecast for SOUTH DENNIS, MASSACHUSETTS (02660)

Sunday
Snow Likely
High 39 °F
Sunday
Night
Mostly Cloudy
Low 17 °F
Monday
Mostly Cloudy
High 26 °F
Monday
Night
Mostly Clear
Low 19 °F
Tuesday
Rain Likely
High 42 °F
Tuesday
Night
Rain
Low 35 °F
Wednesday
Partly Sunny
High 42 °F
Wednesday
Night
Chance of Rain
Low 33 °F
Thursday
Chance of Rain
High 44 °F



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Observation History for SOUTH DENNIS, MASSACHUSETTS


Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
02:00 AM EST 0.0 4.00 Fog/Mist -- 26.6 26.6 100% NA NA 29.97 1014.9
01:45 AM EST 0.0 0.50 Freezing Fog -- 26.6 26.6 100% NA NA 29.98 1015.2
01:35 AM EST 0.0 0.75 Fog/Mist -- 26.6 26.6 100% NA NA 29.98 1015.2
01:25 AM EST 0.0 5.00 Fog/Mist -- 26.6 26.6 100% NA NA 29.98 1015.2
01:10 AM EST 0.0 5.00 Fog/Mist -- 26.6 26.6 100% NA NA 29.99 1015.6
01:05 AM EST 0.0 5.00 Fog/Mist -- 28.4 26.6 93% NA NA 29.99 1015.6
12:54 AM EST 0.0 4.00 Fog/Mist -- NULL 26.6 % NA NA 29.99 1015.6
12:50 AM EST 0.0 5.00 Fog/Mist -- 26.6 26.6 100% NA NA 29.99 1015.6
12:35 AM EST 0.0 7.00 Clear -- 26.6 26.6 100% NA NA 29.99 1015.6
12:25 AM EST 0.0 6.00 Fog/Mist -- 26.6 26.6 100% NA NA 29.99 1015.6
12:05 AM EST 0.0 7.00 Clear -- 28.4 26.6 93% NA NA 30.00 1015.9
12:00 AM EST 0.0 6.00 Fog/Mist -- 28.4 26.6 93% NA NA 30.00 1015.9
11:45 PM EST 0.0 7.00 Clear -- 28.4 26.6 93% NA NA 30.01 1016.3
11:30 PM EST 0.0 6.00 Fog/Mist -- 28.4 28.4 100% NA NA 30.01 1016.3
11:20 PM EST 0.0 6.00 Fog/Mist -- 28.4 28.4 100% NA NA 30.01 1016.3
11:15 PM EST 0.0 6.00 Fog/Mist -- 30.2 28.4 93% NA NA 30.01 1016.3
11:05 PM EST 0.0 8.00 Clear -- 28.4 28.4 100% NA NA 30.01 1016.3
11:00 PM EST 0.0 7.00 Clear -- 28.4 28.4 100% NA NA 30.01 1016.3
10:45 PM EST 0.0 8.00 Clear -- 30.2 28.4 93% NA NA 30.02 1016.6
10:35 PM EST 0.0 8.00 Clear -- 30.2 28.4 93% NA NA 30.02 1016.6
10:30 PM EST 0.0 8.00 Clear -- 30.2 28.4 93% NA NA 30.02 1016.6
10:20 PM EST 0.0 9.00 Clear -- 30.2 28.4 93% NA NA 30.02 1016.6
10:15 PM EST 0.0 9.00 Clear -- 30.2 28.4 93% NA NA 30.02 1016.6
10:05 PM EST 0.0 8.00 Clear -- 30.2 28.4 93% NA NA 30.03 1016.9

Regional Weather Observation

HYANNIS (KHYA)

Fog/Mist
26.6 F

PLYMOUTH (KPYM)

Freezing Fog
26.6 F

CHATHAM (KCQX)

Clear
33.8 F

PROVINCETOWN (KPVC)

Clear
37.4 F

FALMOUTH/OTIS AB (KFMH)

Shallow Fog
28.4 F

MARSHFIELD (KGHG)

Cloudy
33.8 F

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