Current Conditions

Portsmouth, New Hampshire

63°F17°C
Light Rain

Wind

W 4 mph6 km/h

Humidity

87%

Cloud Cover

95%

As of Wednesday, September 9, 2026 at 12:26 AM EDT

Today's Outlook

Day

Overcast and warm, with a high of 70°F21°C and morning low of 61°F16°C. Breezy from the SSE at 8 to 11 mph12 to 18 km/h.

Night

Overcast, with a low around 60°F15°C. Windy from the S at 10 to 17 mph17 to 27 km/h. 94% chance of light rain in the evening.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 70°F21°CLow 60°F15°CPrecip 0.11 in2.7 mm94%Cloud 99%Wind SSE 9 mph14 km/hWednesday: Overcast and warm, with a high of 70°F21°C and morning low of 61°F16°C. Breezy from the SSE at 8 to 11 mph12 to 18 km/h. Wednesday Night: Overcast, with a low around 60°F15°C. Windy from the S at 10 to 17 mph17 to 27 km/h. 94% chance of light rain in the evening.
RainHigh 81°F27°CLow 70°F21°CPrecip 0.27 in6.8 mm98%Cloud 70%Wind WSW 13 mph21 km/hThursday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 71°F21°C. Breezy from the WSW at 13 to 14 mph20 to 22 km/h. 49% chance of showers in the morning. Thursday Night: Overcast, with a low around 70°F21°C. Windy from the WSW at 13 to 18 mph22 to 28 km/h. 98% chance of rain overnight.
ClearHigh 71°F22°CLow 60°F16°CPrecip 0 in0 mmCloud 12%Wind NW 9 mph14 km/hFriday: Mostly clear and warm, with a high of 71°F22°C and morning low of 62°F17°C. Breezy from the WNW at 10 mph15 km/h. Dry air. Friday Night: Mostly clear, with a low around 60°F16°C. Breezy from the NW at 8 to 9 mph13 to 14 km/h.
Partly CloudyHigh 70°F21°CLow 55°F13°CPrecip 0 in0.1 mm5%Cloud 54%Wind S 7 mph11 km/hSaturday: Mostly cloudy and warm, with a high of 70°F21°C and morning low of 58°F14°C. Breezy from the SSE at 6 to 10 mph10 to 16 km/h. Saturday Night: Partly cloudy, with a low around 55°F13°C. Breezy from the SSW at 7 to 10 mph11 to 17 km/h.
Light RainHigh 71°F22°CLow 64°F18°CPrecip 0.37 in9.3 mm66%Cloud 83%Wind SSW 9 mph14 km/hSunday: Overcast and warm, with a high of 71°F22°C and morning low of 65°F18°C. Breezy from the S at 9 mph14 km/h. 66% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the SSW at 9 to 10 mph14 to 16 km/h. 49% chance of light rain throughout the night.
DrizzleHigh 72°F22°CLow 60°F15°CPrecip 0.05 in1.2 mm16%Cloud 31%Wind NW 9 mph15 km/hMonday: Partly cloudy and warm, with a high of 72°F22°C and morning low of 64°F18°C. Breezy from the NW at 9 to 10 mph15 to 16 km/h. 11% chance of drizzle throughout the day. Monday Night: Partly cloudy, with a low around 60°F15°C. Breezy from the NW at 9 mph14 km/h. 16% chance of drizzle overnight.
Partly CloudyHigh 68°F20°CLow 56°F13°CPrecip 0.01 in0.2 mm3%Cloud 44%Wind SSW 8 mph13 km/hTuesday: Partly cloudy and warm, with a high of 68°F20°C and morning low of 58°F15°C. Breezy from the S at 8 to 10 mph12 to 16 km/h. Tuesday Night: Partly cloudy, with a low around 56°F13°C. Breezy from the SW at 9 to 11 mph14 to 18 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 970°F21°C60°F15°C0.11 in2.7 mm· 94%99%Light RainSSE 9 mph14 km/h
ThursdaySep 1081°F27°C70°F21°C0.27 in6.8 mm· 98%70%RainWSW 13 mph21 km/h
FridaySep 1171°F22°C60°F16°C0 in0 mm· —12%ClearNW 9 mph14 km/h
SaturdaySep 1270°F21°C55°F13°C0 in0.1 mm· 5%54%Partly CloudyS 7 mph11 km/h
SundaySep 1371°F22°C64°F18°C0.37 in9.3 mm· 66%83%Light RainSSW 9 mph14 km/h
MondaySep 1472°F22°C60°F15°C0.05 in1.2 mm· 16%31%DrizzleNW 9 mph15 km/h
TuesdaySep 1568°F20°C56°F13°C0.01 in0.2 mm· 3%44%Partly CloudySSW 8 mph13 km/h
WednesdaySep 1676°F24°C64°F18°C0.06 in1.4 mm· 14%55%DrizzleSW 8 mph13 km/h
ThursdaySep 1771°F22°C63°F17°C0.11 in2.7 mm· 17%59%DrizzleSSE 7 mph12 km/h
FridaySep 1872°F22°C64°F18°C0.16 in4.1 mm· 25%55%ShowersWSW 9 mph15 km/h
SaturdaySep 1969°F20°C60°F15°C0.11 in2.9 mm· 16%50%DrizzleW 8 mph14 km/h
SundaySep 2066°F19°C57°F14°C0.11 in2.9 mm· 20%53%ShowersWNW 8 mph13 km/h
MondaySep 2164°F18°C54°F12°C0.13 in3.3 mm· 20%55%ShowersNW 8 mph13 km/h
TuesdaySep 2264°F18°C54°F12°C0.15 in3.7 mm· 19%54%ShowersNW 8 mph14 km/h
WednesdaySep 2364°F18°C54°F12°C0.11 in2.8 mm· 17%51%ShowersN 8 mph13 km/h

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About This Forecast

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