SOMERSWORTH, NH 03878 Weather Forecast & Current Conditions

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ROCHESTER, NH
Current Weather

2:51 PM EDT MAY 20, 2026
Overcast
81°F
Feels Like: 83°F
Dewpoint: 66°F
Rel. Hum.: 60%
Visibility: 10 miles
Wind: WNW at 18 mph, gusts to 30
Pressure:
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SOMERSWORTH, NH 03878
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Partly sunny with isolated showers. Warm with highs in the upper 80s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent.
TONIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Isolated showers. Less humid with lows around 50. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. Much cooler with highs in the lower 60s. Light and variable winds, becoming northwest around 10 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy in the evening, then clearing. Areas of frost after midnight. Lows in the upper 30s. Light and variable winds.
FRIDAY
Mostly sunny. Highs in the mid 60s. Light and variable winds.
FRIDAY NIGHT
Partly cloudy. Lows in the mid 40s.
SATURDAY
Mostly cloudy. Highs in the lower 60s.
SATURDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the lower 40s.
SUNDAY
Showers likely. Highs in the mid 50s. Chance of rain 60 percent.
SUNDAY NIGHT
Showers likely, mainly in the evening. Lows in the lower 40s. Chance of rain 60 percent.
MEMORIAL DAY
Mostly cloudy with a 50 percent chance of showers. Highs in the mid 60s.
MONDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s.
TUESDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.

Visible Weather Satellite
SOMERSWORTH, NH 03878
Infrared Weather Satellite
SOMERSWORTH, NH 03878
NEXRAD Weather Radar
SOMERSWORTH, NH 03878

ROCHESTER, NH 3 hourly weather forecast

weather forecast created  8:00 AM EDT  5/20/2026
Wednesday
20 MAY 2026
SOMERSWORTH, NH 03878 weather forecast Day 1, 12 hours 2 PM 85° 86° Partly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 9% severe)
W   14 50% 64°
High 86° SOMERSWORTH, NH 03878 weather forecast Day 1, 15 hours 5 PM 82° 82° Partly Cloudy W   13 47% 60°
Mostly Cloudy



SOMERSWORTH, NH 03878 weather forecast Day 1, 18 hours 8 PM 74° 74° Mostly Cloudy 2%

0% Thunder
( 1% severe)
NW   8 46% 52°
SOMERSWORTH, NH 03878 weather forecast Day 1, 21 hours 11 PM 65° 65° Mostly Cloudy NW   8 48% 45°
Thursday
21 MAY 2026
SOMERSWORTH, NH 03878 weather forecast Day 2, 0 hours 2 AM 58° 57° Mostly Cloudy 1%

0% Thunder
( 0% severe)
NW   6 51% 40°
Low 52° SOMERSWORTH, NH 03878 weather forecast Day 2, 3 hours 5 AM 53° 52° Mostly Cloudy NNW   5 54% 37°
High 66° SOMERSWORTH, NH 03878 weather forecast Day 2, 6 hours 8 AM 54° 54° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NNW   3 52% 37°

Mostly Cloudy



SOMERSWORTH, NH 03878 weather forecast Day 2, 9 hours 11 AM 58° 58° Mostly Cloudy WNW   5 44% 36°
SOMERSWORTH, NH 03878 weather forecast Day 2, 12 hours 2 PM 62° 62° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   6 35% 34°
SOMERSWORTH, NH 03878 weather forecast Day 2, 15 hours 5 PM 63° 63° Partly Cloudy NW   7 34% 34°
SOMERSWORTH, NH 03878 weather forecast Day 2, 18 hours 8 PM 57° 57° Partly Cloudy 0%

0% Thunder
( 0% severe)
NW   5 43% 35°
SOMERSWORTH, NH 03878 weather forecast Day 2, 21 hours 11 PM 49° 49° Partly Cloudy N   1 58% 35°
Friday
22 MAY 2026
SOMERSWORTH, NH 03878 weather forecast Day 3, 0 hours 2 AM 45° 44° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 63% 33°
Low 42° SOMERSWORTH, NH 03878 weather forecast Day 3, 3 hours 5 AM 42° 41° Partly Cloudy   CALM 67% 32°
High 68° SOMERSWORTH, NH 03878 weather forecast Day 3, 6 hours 8 AM 51° 51° Clear 0%

0% Thunder
( 0% severe)
  CALM 52% 34°

Partly Cloudy



SOMERSWORTH, NH 03878 weather forecast Day 3, 9 hours 11 AM 59° 60° Clear   CALM 36% 32°
SOMERSWORTH, NH 03878 weather forecast Day 3, 15 hours 2 PM 64° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   3 31% 33°
SOMERSWORTH, NH 03878 weather forecast Day 3, 18 hours 5 PM 65° 65° Partly Cloudy SW   6 33% 35°
SOMERSWORTH, NH 03878 weather forecast Day 3, 21 hours 8 PM 57° 58° Partly Cloudy       CALM 49% 38°

ROCHESTER, NH extended weather forecast

Saturday
23 MAY 2026
Sunday
24 MAY 2026
Monday
25 MAY 2026
Tuesday
26 MAY 2026
Wednesday
27 MAY 2026
Low 44° Low 42° Low 45° Low 49° Low 55°
High 66° High 65° High 61° High 74° High 79°
SOMERSWORTH, NH 03878 weather forecast Day 4 SOMERSWORTH, NH 03878 weather forecast Day 5 SOMERSWORTH, NH 03878 weather forecast Day 6 SOMERSWORTH, NH 03878 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
2% Rain
Clear
11% Rain
Overcast
49% Rain
Mostly Cloudy
31% Rain
Partly Cloudy
23% Rain
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