PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gray ME
416 AM EDT Wed Jul 15 2026

The National Weather Service in Gray Maine has issued a

* Severe Thunderstorm Warning for...
Southwestern Rockingham County in southern New Hampshire...
Central Hillsborough County in southern New Hampshire...
South central Merrimack County in central New Hampshire...

* Until 500 AM EDT.

* At 416 AM EDT, a severe thunderstorm was located near Weare, or 10
miles southeast of Henniker, moving east at 50 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.

* Locations impacted include...
Manchester, Nashua, Derry, Merrimack, Bedford, Hooksett, Amherst,
Litchfield, New Boston, Mont Vernon, Lyndeborough, Francestown,
Bennington, Goffstown, Mount Vernon, Weare, Deering, Raymond,
Hudson, and Londonderry.

This includes the following highways...
Interstate 293 between mile markers 1 and 11.
Interstate 93 between mile markers 10 and 28.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4301 7190 4315 7172 4302 7124 4285 7128
4279 7150
TIME...MOT...LOC 0816Z 289DEG 45KT 4303 7172

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

PORTSMOUTH, NH
Current Weather

3:55 AM EDT JUL 15, 2026
Overcast
81°F
Feels Like: 84°F
Dewpoint: 70°F
Rel. Hum.: 69%
Visibility: 10 miles
Wind: W at 8 mph
Pressure: 29.68 inches
Last 72 hours

Local Area Snow Depth

New Hampshire Current Weather

New Hampshire MOS Forecast Weather


Weather Map


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2025 Hurricanes

PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Mostly cloudy with isolated showers and thunderstorms. Lows in the mid 70s. West winds around 10 mph. Chance of rain 20 percent.
WEDNESDAY
Partly sunny. Isolated showers and thunderstorms in the morning. Patchy smoke. Warm with highs in the upper 80s. Northwest winds around 10 mph with gusts up to 25 mph. Chance of rain 20 percent.
WEDNESDAY NIGHT
Mostly clear. Patchy smoke after midnight. Lows in the upper 60s. Northwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
THURSDAY
Mostly sunny. Areas of smoke. Warm with highs in the upper 80s. West winds around 10 mph with gusts up to 25 mph.
THURSDAY NIGHT
Patchy smoke in the evening. Partly cloudy. Lows in the lower 60s. Northwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
FRIDAY
Mostly sunny. Highs in the mid 80s.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
SATURDAY
Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. Highs in the upper 70s. Chance of rain 50 percent.
SATURDAY NIGHT
Showers likely. Lows in the lower 60s. Chance of rain 70 percent.
SUNDAY
Partly sunny. A chance of showers in the morning. Highs in the lower 80s. Chance of rain 50 percent.
SUNDAY NIGHT
Mostly clear. Lows in the lower 60s.
MONDAY
Mostly sunny. Highs in the lower 80s.
MONDAY NIGHT
Partly cloudy. Lows in the mid 60s.

Visible Weather Satellite
PORTSMOUTH, NH 03803
Infrared Weather Satellite
PORTSMOUTH, NH 03803
NEXRAD Weather Radar
PORTSMOUTH, NH 03803

PORTSMOUTH, NH 3 hourly weather forecast

weather forecast created  8:00 PM EDT  7/14/2026
Wednesday
15 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 81° 84° Mostly Cloudy 29%
RAIN
<.01 in
0% Thunder
( 10% severe)
WNW   9 65% 68°
Low 76° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 77° 79° Mostly Cloudy W   10 71% 67°
High 91° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 79° 81° Partly Cloudy 2%

0% Thunder
( 3% severe)
WNW   10 69% 68°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 88° 88° Partly Cloudy WNW   13 40% 61°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 90° 88° Mostly Cloudy 1%

0% Thunder
( 7% severe)
WNW   15 31% 55°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 89° 87° Partly Cloudy WNW   15 30% 54°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 81° 81° Partly Cloudy 0%

0% Thunder
( 3% severe)
WNW   9 41% 55°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 73° 73° Clear W   6 57% 57°
Thursday
16 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
W   6 66% 57°
Low 66° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 66° 66° Clear W   7 70% 56°
High 91° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 74° 74° Clear 0%

0% Thunder
( 1% severe)
WNW   7 59% 59°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 86° 85° Clear W   12 35% 55°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 89° 87° Clear 7%

0% Thunder
( 15% severe)
W   15 30% 54°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 87° 85° Partly Cloudy WNW   15 32% 54°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 79° 79° Partly Cloudy 1%

0% Thunder
( 9% severe)
NW   9 42% 54°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 71° 71° Partly Cloudy NW   6 57% 55°

PORTSMOUTH, NH extended weather forecast

Friday
17 JUL 2026
Saturday
18 JUL 2026
Sunday
19 JUL 2026
Monday
20 JUL 2026
Tuesday
21 JUL 2026
Low 60° Low 59° Low 65° Low 62° Low 64°
High 82° High 77° High 81° High 80° High 82°
PORTSMOUTH, NH 03803 weather forecast Day 3 PORTSMOUTH, NH 03803 weather forecast Day 4 PORTSMOUTH, NH 03803 weather forecast Day 5 PORTSMOUTH, NH 03803 weather forecast Day 6 PORTSMOUTH, NH 03803 weather forecast Day 7
Partly Cloudy
6% Rain
Mostly Cloudy
25% Rain
Overcast
65% Rain
Partly Cloudy
20% Rain
Overcast
58% Rain
SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
Portsmouth, NH
Portsmouth, NH snow
Portsmouth, NH radar
NH map
-or-
-or-
-or-
 
03803
03803 snow
03803 radar
 
-or-
-or-
 
 
NH
NH snow
 
 
Copyright © 2024 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions