PORTSMOUTH, NH 03804 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

6:55 AM EDT MAY 20, 2025
Broken Clouds
48°F
Feels Like: 44°F
Dewpoint: 41°F
Rel. Hum.: 77%
Visibility: 10 miles
Wind: WNW at 9 mph
Pressure: 29.83 inches
Last 72 hours

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PORTSMOUTH, NH 03804
Weather Forecast

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TODAY
Partly sunny this morning, then mostly cloudy with isolated showers this afternoon. Highs in the upper 50s. North winds around 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
TONIGHT
Mostly cloudy with isolated showers in the evening, then partly cloudy after midnight. Lows in the mid 40s. Northeast winds around 10 mph. Chance of rain 20 percent.
WEDNESDAY
Mostly cloudy. Highs in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
WEDNESDAY NIGHT
Cloudy. A chance of showers after midnight. Lows in the mid 40s. East winds around 10 mph with gusts up to 20 mph. Chance of rain 40 percent.
THURSDAY
Rain. Highs in the lower 50s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 80 percent.
THURSDAY NIGHT
Rain. Lows in the lower 40s. Chance of rain 80 percent.
FRIDAY
Rain likely, mainly in the morning. Highs in the lower 50s. Chance of rain 70 percent.
FRIDAY NIGHT
Mostly cloudy. A chance of rain in the evening, then a chance of showers after midnight. Lows in the mid 40s. Chance of rain 40 percent.
SATURDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the upper 50s.
SATURDAY NIGHT
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the mid 40s. Chance of rain 50 percent.
SUNDAY
Partly sunny. Highs in the mid 60s.
SUNDAY NIGHT
Partly cloudy. Lows in the upper 40s.
MEMORIAL DAY
Mostly sunny. Highs in the mid 60s.

Visible Weather Satellite
PORTSMOUTH, NH 03804
Infrared Weather Satellite
PORTSMOUTH, NH 03804
NEXRAD Weather Radar
PORTSMOUTH, NH 03804

PORTSMOUTH, NH 3 hourly weather forecast

weather forecast created  8:00 PM EDT  5/19/2025
Tuesday
20 MAY 2025
PORTSMOUTH, NH 03804 weather forecast Day 1, 0 hours 2 AM 49° 45° Mostly Cloudy 1%

0% Thunder
( 0% severe)
NW   9 66% 38°
Low 47° PORTSMOUTH, NH 03804 weather forecast Day 1, 3 hours 5 AM 48° 44° Mostly Cloudy NW   9 71% 39°
High 60° PORTSMOUTH, NH 03804 weather forecast Day 1, 6 hours 8 AM 51° 48° Mostly Cloudy 3%

0% Thunder
( 1% severe)
NNW   9 68% 41°

Mostly Cloudy



PORTSMOUTH, NH 03804 weather forecast Day 1, 9 hours 11 AM 57° 55° Mostly Cloudy N   9 57% 42°
PORTSMOUTH, NH 03804 weather forecast Day 1, 12 hours 2 PM 57° 55° Mostly Cloudy 6%

0% Thunder
( 1% severe)
NNE   9 57% 42°
PORTSMOUTH, NH 03804 weather forecast Day 1, 15 hours 5 PM 56° 54° Mostly Cloudy NE   7 62% 43°
PORTSMOUTH, NH 03804 weather forecast Day 1, 18 hours 8 PM 54° 54° Mostly Cloudy 6%

0% Thunder
( 2% severe)
NE   2 66% 43°
PORTSMOUTH, NH 03804 weather forecast Day 1, 21 hours 11 PM 52° 52° Mostly Cloudy NE   2 74% 44°
Wednesday
21 MAY 2025
PORTSMOUTH, NH 03804 weather forecast Day 2, 0 hours 2 AM 50° 49° Mostly Cloudy 1%

0% Thunder
( 2% severe)
ENE   3 77% 43°
Low 46° PORTSMOUTH, NH 03804 weather forecast Day 2, 3 hours 5 AM 48° 46° Mostly Cloudy NE   5 80% 42°
High 55° PORTSMOUTH, NH 03804 weather forecast Day 2, 6 hours 8 AM 49° 45° Mostly Cloudy 1%

0% Thunder
( 2% severe)
NE   8 74% 41°

Mostly Cloudy



PORTSMOUTH, NH 03804 weather forecast Day 2, 9 hours 11 AM 53° 50° Mostly Cloudy ENE   9 59% 39°
PORTSMOUTH, NH 03804 weather forecast Day 2, 12 hours 2 PM 53° 49° Mostly Cloudy 4%

0% Thunder
( 2% severe)
ENE   12 57% 38°
PORTSMOUTH, NH 03804 weather forecast Day 2, 15 hours 5 PM 52° 48° Mostly Cloudy E   10 61% 39°
PORTSMOUTH, NH 03804 weather forecast Day 2, 18 hours 8 PM 50° 47° Mostly Cloudy 9%

0% Thunder
( 4% severe)
E   7 68% 40°
PORTSMOUTH, NH 03804 weather forecast Day 2, 21 hours 11 PM 49° 47° Mostly Cloudy E   6 74% 41°

PORTSMOUTH, NH extended weather forecast

Thursday
22 MAY 2025
Friday
23 MAY 2025
Saturday
24 MAY 2025
Sunday
25 MAY 2025
Monday
26 MAY 2025
Low 44° Low 44° Low 43° Low 44° Low 48°
High 50° High 54° High 55° High 61° High 67°
PORTSMOUTH, NH 03804 weather forecast Day 3 PORTSMOUTH, NH 03804 weather forecast Day 4 PORTSMOUTH, NH 03804 weather forecast Day 5 PORTSMOUTH, NH 03804 weather forecast Day 6 PORTSMOUTH, NH 03804 weather forecast Day 7
Overcast
97% Rain
Overcast
100% Rain
Overcast
71% Rain
Overcast
34% Rain
Mostly Cloudy
29% Rain
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