NEW CASTLE, NH 03854 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

8:55 AM EDT JUL 4, 2025
Few Clouds
70°F
Feels Like: 70°F
Dewpoint: 55°F
Rel. Hum.: 59%
Visibility: 10 miles
Wind: W at 13 mph
Pressure: 29.96 inches
Last 72 hours

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NEW CASTLE, NH 03854
Weather Forecast

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REST OF TODAY
Mostly sunny. Highs in the upper 70s. Northwest winds around 10 mph.
TONIGHT
Mostly clear. Lows in the upper 50s. Northwest winds around 10 mph in the evening, becoming light and variable.
SATURDAY
Partly sunny. Highs in the mid 80s. Light and variable winds, becoming southwest around 10 mph in the afternoon.
SATURDAY NIGHT
Partly cloudy. Lows in the mid 60s. Light and variable winds.
SUNDAY
Partly sunny. Hot with highs in the lower 90s. Southwest winds around 10 mph. Heat index values in the mid 90s in the afternoon.
SUNDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the lower 70s.
MONDAY
Mostly sunny. Hot with highs in the lower 90s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A 30 percent chance of showers. Lows in the upper 60s.
TUESDAY
Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
TUESDAY NIGHT
A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50 percent.
WEDNESDAY
Partly sunny in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
WEDNESDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30 percent.
THURSDAY
Mostly cloudy in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 40 percent.

Visible Weather Satellite
NEW CASTLE, NH 03854
Infrared Weather Satellite
NEW CASTLE, NH 03854
NEXRAD Weather Radar
NEW CASTLE, NH 03854

PORTSMOUTH, NH 3 hourly weather forecast

weather forecast created  8:00 PM EDT  7/ 3/2025
Friday
4 JUL 2025
NEW CASTLE, NH 03854 weather forecast Day 1, 0 hours 2 AM 65° 65° Clear 1%

0% Thunder
( 0% severe)
W   6 78% 58°
Low 62° NEW CASTLE, NH 03854 weather forecast Day 1, 3 hours 5 AM 63° 63° Clear WNW   7 78% 56°
High 80° NEW CASTLE, NH 03854 weather forecast Day 1, 6 hours 8 AM 68° 68° Clear 0%

0% Thunder
( 0% severe)
WNW   8 68% 57°

Clear



NEW CASTLE, NH 03854 weather forecast Day 1, 9 hours 11 AM 75° 75° Clear WNW   10 46% 53°
NEW CASTLE, NH 03854 weather forecast Day 1, 12 hours 2 PM 78° 79° Clear 1%

0% Thunder
( 1% severe)
WNW   12 39% 51°
NEW CASTLE, NH 03854 weather forecast Day 1, 15 hours 5 PM 78° 79° Clear NW   10 37% 50°
NEW CASTLE, NH 03854 weather forecast Day 1, 18 hours 8 PM 72° 72° Clear 0%

0% Thunder
( 1% severe)
NW   7 48% 51°
NEW CASTLE, NH 03854 weather forecast Day 1, 21 hours 11 PM 66° 66° Clear W   5 63% 53°
Saturday
5 JUL 2025
NEW CASTLE, NH 03854 weather forecast Day 2, 0 hours 2 AM 63° 64° Clear 0%

0% Thunder
( 0% severe)
W   5 67% 52°
Low 60° NEW CASTLE, NH 03854 weather forecast Day 2, 3 hours 5 AM 61° 61° Partly Cloudy W   5 72% 52°
High 85° NEW CASTLE, NH 03854 weather forecast Day 2, 6 hours 8 AM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   3 65% 56°

Mostly Cloudy



NEW CASTLE, NH 03854 weather forecast Day 2, 9 hours 11 AM 79° 80° Mostly Cloudy W   5 44% 55°
NEW CASTLE, NH 03854 weather forecast Day 2, 12 hours 2 PM 83° 82° Mostly Cloudy 1%

0% Thunder
( 1% severe)
SW   7 37% 54°
NEW CASTLE, NH 03854 weather forecast Day 2, 15 hours 5 PM 82° 81° Mostly Cloudy SSW   8 40% 55°
NEW CASTLE, NH 03854 weather forecast Day 2, 18 hours 8 PM 76° 78° Mostly Cloudy 1%

0% Thunder
( 2% severe)
SSW   6 54% 58°
NEW CASTLE, NH 03854 weather forecast Day 2, 21 hours 11 PM 71° 71° Partly Cloudy SW   6 66% 59°

PORTSMOUTH, NH extended weather forecast

BAD DAY
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Low 58° Low 61° Low 67° Low 69° Low 67°
High 82° High 90° High 89° High 85° High 82°
NEW CASTLE, NH 03854 weather forecast Day 3 NEW CASTLE, NH 03854 weather forecast Day 4 NEW CASTLE, NH 03854 weather forecast Day 5 NEW CASTLE, NH 03854 weather forecast Day 6 NEW CASTLE, NH 03854 weather forecast Day 7
Partly Cloudy
1% Rain
Partly Cloudy
4% Rain
Partly Cloudy
22% Rain
Overcast
62% Rain
Overcast
59% Rain
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