NEWCASTLE, NH 03854 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

3:55 AM EDT JUN 9, 2026
Clear
61°F
Feels Like: 61°F
Dewpoint: 52°F
Rel. Hum.: 72%
Visibility: 10 miles
Wind: WSW at 5 mph
Pressure: 30.14 inches
Last 72 hours

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NEWCASTLE, NH 03854
Weather Forecast

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REST OF TONIGHT
Mostly clear. Lows in the mid 50s. Light and variable winds.
TUESDAY
Mostly sunny. Warm with highs in the upper 80s. Light and variable winds.
TUESDAY NIGHT
Partly cloudy. Lows in the lower 60s. Light and variable winds.
WEDNESDAY
Partly sunny in the morning, then becoming mostly cloudy. Warm with highs in the upper 80s. Light and variable winds, becoming south around 10 mph in the afternoon.
WEDNESDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. South winds around 10 mph in the evening, becoming light and variable. Chance of rain 30 percent.
THURSDAY
Partly sunny with a chance of showers. Warm with highs in the mid 80s. Chance of rain 50 percent.
THURSDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Lows in the lower 60s. Chance of rain 50 percent.
FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s.
FRIDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of rain 40 percent.
SATURDAY
A chance of showers in the morning. Partly sunny. Highs in the upper 70s. Chance of rain 40 percent.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows around 60.
SUNDAY
Mostly sunny. Highs in the mid 80s.
SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

Visible Weather Satellite
NEWCASTLE, NH 03854
Infrared Weather Satellite
NEWCASTLE, NH 03854
NEXRAD Weather Radar
NEWCASTLE, NH 03854

PORTSMOUTH, NH 3 hourly weather forecast

weather forecast created  8:00 PM EDT  6/ 8/2026
Tuesday
9 JUN 2026
NEWCASTLE, NH 03854 weather forecast Day 1, 0 hours 2 AM 60° 59° Clear 0%

0% Thunder
( 0% severe)
WSW   7 75% 52°
Low 56° NEWCASTLE, NH 03854 weather forecast Day 1, 3 hours 5 AM 57° 56° Clear W   7 80% 51°
High 89° NEWCASTLE, NH 03854 weather forecast Day 1, 6 hours 8 AM 65° 65° Clear 0%

0% Thunder
( 0% severe)
W   6 68% 54°

Partly Cloudy



NEWCASTLE, NH 03854 weather forecast Day 1, 9 hours 11 AM 80° 80° Clear W   7 44% 56°
NEWCASTLE, NH 03854 weather forecast Day 1, 12 hours 2 PM 86° 85° Partly Cloudy 0%

0% Thunder
( 1% severe)
W   7 37% 57°
NEWCASTLE, NH 03854 weather forecast Day 1, 15 hours 5 PM 86° 86° Partly Cloudy W   7 42% 60°
NEWCASTLE, NH 03854 weather forecast Day 1, 18 hours 8 PM 77° 79° Partly Cloudy 0%

0% Thunder
( 1% severe)
SW   3 58% 61°
NEWCASTLE, NH 03854 weather forecast Day 1, 21 hours 11 PM 70° 70° Partly Cloudy SW   7 63% 57°
Wednesday
10 JUN 2026
NEWCASTLE, NH 03854 weather forecast Day 2, 0 hours 2 AM 66° 66° Partly Cloudy 1%

0% Thunder
( 0% severe)
WSW   6 65% 54°
Low 62° NEWCASTLE, NH 03854 weather forecast Day 2, 3 hours 5 AM 62° 62° Partly Cloudy WSW   6 72% 53°
High 88° NEWCASTLE, NH 03854 weather forecast Day 2, 6 hours 8 AM 69° 69° Partly Cloudy 3%

0% Thunder
( 3% severe)
WSW   5 66% 57°

Mostly Cloudy

Chance of Rain

NEWCASTLE, NH 03854 weather forecast Day 2, 9 hours 11 AM 81° 82° Mostly Cloudy SSW   7 51% 61°
NEWCASTLE, NH 03854 weather forecast Day 2, 12 hours 2 PM 84° 85° Mostly Cloudy 35%
RAIN
.25–.5 in
0% Thunder
( 8% severe)
SSW   9 49% 63°
NEWCASTLE, NH 03854 weather forecast Day 2, 15 hours 5 PM 80° 82° Mostly Cloudy S   9 62% 66°
NEWCASTLE, NH 03854 weather forecast Day 2, 18 hours 8 PM 74° 74° Mostly Cloudy 51%
RAIN
.25–.5 in
0% Thunder
( 12% severe)
SSW   8 74% 65°
NEWCASTLE, NH 03854 weather forecast Day 2, 21 hours 11 PM 69° 69° Mostly Cloudy SSW   7 87% 65°

PORTSMOUTH, NH extended weather forecast

Thursday
11 JUN 2026
Friday
12 JUN 2026
Saturday
13 JUN 2026
Sunday
14 JUN 2026
Monday
15 JUN 2026
Low 64° Low 64° Low 60° Low 60° Low 56°
High 82° High 74° High 79° High 79° High 70°
NEWCASTLE, NH 03854 weather forecast Day 3 NEWCASTLE, NH 03854 weather forecast Day 4 NEWCASTLE, NH 03854 weather forecast Day 5 NEWCASTLE, NH 03854 weather forecast Day 6 NEWCASTLE, NH 03854 weather forecast Day 7
Overcast
63% Rain
Overcast
42% Rain
Overcast
55% Rain
Partly Cloudy
20% Rain
Overcast
42% Rain
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