Current Conditions

Portsmouth, New Hampshire

65°F18°C
Cloudy

Wind

E 6 mph9 km/h

Humidity

90%

Cloud Cover

95%

As of Wednesday, September 2, 2026 at 9:01 AM EDT

Today's Outlook

Day

Overcast and mild, with a high of 68°F20°C. Breezy from the ESE at 7 to 8 mph11 to 12 km/h.

Night

Overcast, with a low around 65°F18°C. Breezy from the SSE at 8 mph12 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
CloudyHigh 68°F20°CLow 65°F18°CPrecip 0 in0.1 mm4%Cloud 96%Wind SE 7 mph12 km/hWednesday: Overcast and mild, with a high of 68°F20°C. Breezy from the ESE at 7 to 8 mph11 to 12 km/h. Wednesday Night: Overcast, with a low around 65°F18°C. Breezy from the SSE at 8 mph12 km/h.
RainHigh 71°F22°CLow 64°F18°CPrecip 0.74 in18.7 mm100%Cloud 89%Wind SSE 6 mph10 km/hThursday: Overcast and warm, with a high of 71°F22°C and morning low of 64°F18°C. Breezy from the SSE at 6 to 9 mph10 to 14 km/h. 100% chance of rain throughout the day. Humid. Thursday Night: Overcast, with a low around 64°F18°C. Breezy from the SSE at 7 to 10 mph11 to 16 km/h. 96% chance of rain throughout the night.
DrizzleHigh 76°F24°CLow 65°F18°CPrecip 0.04 in1 mm22%Cloud 52%Wind NW 5 mph7 km/hFriday: Partly cloudy and warm, with a high of 76°F24°C and morning low of 66°F19°C. Light wind from the WNW around 4 mph6 km/h. 22% chance of drizzle throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the NW at 5 to 9 mph9 to 14 km/h. 19% chance of drizzle overnight.
ShowersHigh 70°F21°CLow 63°F17°CPrecip 0.07 in1.8 mm44%Cloud 48%Wind N 10 mph16 km/hSaturday: Mostly cloudy and warm, with a high of 70°F21°C. Breezy from the NNE at 10 to 11 mph17 to 18 km/h. 44% chance of showers throughout the day. Saturday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the N at 10 to 11 mph16 to 18 km/h. 28% chance of drizzle in the evening.
DrizzleHigh 70°F21°CLow 60°F15°CPrecip 0.02 in0.4 mm11%Cloud 33%Wind N 9 mph15 km/hSunday: Partly cloudy and warm, with a high of 70°F21°C and morning low of 61°F16°C. Breezy from the N at 10 to 12 mph16 to 20 km/h. Sunday Night: Partly cloudy, with a low around 60°F15°C. Breezy from the N at 9 to 11 mph14 to 18 km/h. 11% chance of drizzle overnight.
ClearHigh 74°F23°CLow 57°F14°CPrecip 0 in0 mmCloud 22%Wind WNW 6 mph10 km/hMonday: Mostly clear and warm, with a high of 74°F23°C and morning low of 61°F16°C. Light wind from the NW around 5 mph9 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the WNW at 7 to 8 mph12 to 12 km/h.
Partly CloudyHigh 74°F23°CLow 61°F16°CPrecip 0.01 in0.3 mm9%Cloud 49%Wind WNW 7 mph11 km/hTuesday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. Tuesday Night: Partly cloudy, with a low around 61°F16°C. Breezy from the W at 7 to 8 mph11 to 12 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 268°F20°C65°F18°C0 in0.1 mm· 4%96%CloudySE 7 mph12 km/h
ThursdaySep 371°F22°C64°F18°C0.74 in18.7 mm· 100%89%RainSSE 6 mph10 km/h
FridaySep 476°F24°C65°F18°C0.04 in1 mm· 22%52%DrizzleNW 5 mph7 km/h
SaturdaySep 570°F21°C63°F17°C0.07 in1.8 mm· 44%48%ShowersN 10 mph16 km/h
SundaySep 670°F21°C60°F15°C0.02 in0.4 mm· 11%33%DrizzleN 9 mph15 km/h
MondaySep 774°F23°C57°F14°C0 in0 mm· —22%ClearWNW 6 mph10 km/h
TuesdaySep 874°F23°C61°F16°C0.01 in0.3 mm· 9%49%Partly CloudyWNW 7 mph11 km/h
WednesdaySep 972°F22°C61°F16°C0.06 in1.4 mm· 17%72%DrizzleSSW 9 mph14 km/h
ThursdaySep 1078°F25°C68°F20°C0.11 in2.7 mm· 23%63%DrizzleWSW 10 mph17 km/h
FridaySep 1175°F24°C66°F19°C0.07 in1.8 mm· 12%41%DrizzleW 9 mph14 km/h
SaturdaySep 1273°F23°C63°F17°C0.06 in1.4 mm· 15%52%DrizzleSW 8 mph13 km/h
SundaySep 1373°F23°C64°F18°C0.17 in4.2 mm· 24%58%ShowersSW 9 mph14 km/h
MondaySep 1472°F22°C63°F17°C0.12 in3 mm· 14%53%DrizzleW 8 mph13 km/h
TuesdaySep 1570°F21°C62°F17°C0.1 in2.6 mm· 16%53%DrizzleWSW 8 mph14 km/h
WednesdaySep 1671°F22°C61°F16°C0.14 in3.5 mm· 17%52%ShowersSW 8 mph13 km/h

Nearby Cities

About This Forecast

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Coordinates: 43.0770°N, 70.7577°W·Elevation: 6m·Timezone: America/New_York·Population: 21,530