Current Conditions

Portsmouth, New Hampshire

60°F16°C

Partly Cloudy

Wind

NE 10 mph15 km/h

Humidity

53%

Cloud Cover

64%

As of Tuesday, September 22, 2026 at 2:48 PM EDT

Today's Outlook

Day

Mostly cloudy and mild, with a high of 60°F16°C. Breezy from the ENE at 9 to 10 mph14 to 15 km/h. Dry air.

Night

Mostly cloudy, with a low around 53°F12°C. Light wind from the NE around 6 mph9 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 60°F16°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 60%	Wind ENE 7 mph12 km/h	Tuesday: Mostly cloudy and mild, with a high of 60°F16°C. Breezy from the ENE at 9 to 10 mph14 to 15 km/h. Dry air. Tuesday Night: Mostly cloudy, with a low around 53°F12°C. Light wind from the NE around 6 mph9 km/h.
Clear	High 60°F16°C	Low 51°F11°C	Precip 0 in0 mm—	Cloud 12%	Wind NE 10 mph17 km/h	Wednesday: Mostly clear and mild, with a high of 60°F16°C and morning low of 53°F12°C. Breezy from the NE at 12 to 13 mph19 to 21 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 51°F11°C. Breezy from the NE at 9 to 12 mph14 to 19 km/h.
Clear	High 63°F17°C	Low 49°F10°CFeels 45°F7°C	Precip 0 in0 mm—	Cloud 27%	Wind NE 9 mph15 km/h	Thursday: Mostly clear and mild, with a high of 63°F17°C and morning low of 52°F11°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. Dry air. Thursday Night: Partly cloudy, with a low around 49°F10°C. Breezy from the NNE at 8 to 10 mph13 to 16 km/h.
Light Rain	High 64°F18°C	Low 53°F12°C	Precip 0.11 in2.7 mm35%	Cloud 83%	Wind NNE 14 mph22 km/h	Friday: Overcast and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the NE at 14 to 15 mph23 to 24 km/h. 16% chance of light rain throughout the day. Dry air. Friday Night: Overcast, with a low around 53°F12°C. Breezy from the NNE at 13 to 15 mph21 to 24 km/h. 35% chance of light rain in the evening.
Rain	High 60°F16°C	Low 58°F14°C	Precip 0.89 in22.5 mm85%	Cloud 94%	Wind NE 19 mph30 km/h	Saturday: Overcast and mild, with a high of 60°F16°C. Windy from the NNE at 19 mph30 km/h. 78% chance of rain throughout the day. Saturday Night: Overcast, with a low around 58°F14°C. Windy from the NE at 18 to 20 mph29 to 32 km/h. 85% chance of rain throughout the night.
Rain	High 60°F15°C	Low 58°F14°C	Precip 1.13 in28.8 mm90%	Cloud 98%	Wind NE 17 mph28 km/h	Sunday: Overcast and mild, with a high of 60°F15°C. Windy from the NE at 17 to 18 mph28 to 29 km/h. 90% chance of rain throughout the day. Sunday Night: Overcast, with a low around 58°F14°C. Windy from the NE at 17 to 20 mph28 to 32 km/h. 90% chance of rain throughout the night.
Rain	High 60°F16°C	Low 58°F14°C	Precip 0.47 in12 mm87%	Cloud 95%	Wind NE 11 mph17 km/h	Monday: Overcast and mild, with a high of 60°F16°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h. 79% chance of light rain throughout the day. Monday Night: Overcast, with a low around 58°F15°C. Breezy from the NE at 11 to 13 mph17 to 21 km/h. 87% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 22	60°F16°C	53°F12°C	0 in0 mm· —	60%	Partly Cloudy	ENE 7 mph12 km/h
DayMostly cloudy and mild, with a high of 60°F16°C. Breezy from the ENE at 9 to 10 mph14 to 15 km/h. Dry air. NightMostly cloudy, with a low around 53°F12°C. Light wind from the NE around 6 mph9 km/h.
	WednesdaySep 23	60°F16°C	51°F11°C	0 in0 mm· —	12%	Clear	NE 10 mph17 km/h
DayMostly clear and mild, with a high of 60°F16°C and morning low of 53°F12°C. Breezy from the NE at 12 to 13 mph19 to 21 km/h. Dry air. NightMostly clear, with a low around 51°F11°C. Breezy from the NE at 9 to 12 mph14 to 19 km/h.
	ThursdaySep 24	63°F17°C	49°F10°C Feels 45°F7°C	0 in0 mm· —	27%	Clear	NE 9 mph15 km/h
DayMostly clear and mild, with a high of 63°F17°C and morning low of 52°F11°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. Dry air. NightPartly cloudy, with a low around 49°F10°C. Breezy from the NNE at 8 to 10 mph13 to 16 km/h.
	FridaySep 25	64°F18°C	53°F12°C	0.11 in2.7 mm· 35%	83%	Light Rain	NNE 14 mph22 km/h
DayOvercast and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the NE at 14 to 15 mph23 to 24 km/h. 16% chance of light rain throughout the day. Dry air. NightOvercast, with a low around 53°F12°C. Breezy from the NNE at 13 to 15 mph21 to 24 km/h. 35% chance of light rain in the evening.
	SaturdaySep 26	60°F16°C	58°F14°C	0.89 in22.5 mm· 85%	94%	Rain	NE 19 mph30 km/h
DayOvercast and mild, with a high of 60°F16°C. Windy from the NNE at 19 mph30 km/h. 78% chance of rain throughout the day. NightOvercast, with a low around 58°F14°C. Windy from the NE at 18 to 20 mph29 to 32 km/h. 85% chance of rain throughout the night.
	SundaySep 27	60°F15°C	58°F14°C	1.13 in28.8 mm· 90%	98%	Rain	NE 17 mph28 km/h
DayOvercast and mild, with a high of 60°F15°C. Windy from the NE at 17 to 18 mph28 to 29 km/h. 90% chance of rain throughout the day. NightOvercast, with a low around 58°F14°C. Windy from the NE at 17 to 20 mph28 to 32 km/h. 90% chance of rain throughout the night.
	MondaySep 28	60°F16°C	58°F14°C	0.47 in12 mm· 87%	95%	Rain	NE 11 mph17 km/h
DayOvercast and mild, with a high of 60°F16°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h. 79% chance of light rain throughout the day. NightOvercast, with a low around 58°F15°C. Breezy from the NE at 11 to 13 mph17 to 21 km/h. 87% chance of rain throughout the night.
	TuesdaySep 29	64°F18°C	58°F14°C	0.09 in2.4 mm· 44%	75%	Light Rain	NNW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 58°F15°C. Breezy from the N at 6 to 7 mph10 to 12 km/h. 26% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h. 44% chance of light rain throughout the night.
	WednesdaySep 30	66°F19°C	57°F14°C	0.03 in0.7 mm· 9%	63%	Partly Cloudy	WSW 6 mph9 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Light wind from the S around 5 mph9 km/h. NightMostly cloudy, with a low around 57°F14°C. Light wind from the W around 6 mph10 km/h.
	ThursdayOct 1	67°F19°C	58°F14°C	0.07 in1.8 mm· 14%	69%	Showers	SSW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 58°F15°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. 12% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 14% chance of showers in the evening.
	FridayOct 2	66°F19°C	58°F15°C	0.19 in4.9 mm· 23%	62%	Showers	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 59°F15°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F15°C. Breezy from the WSW at 8 to 9 mph14 to 14 km/h. 21% chance of showers throughout the night.
	SaturdayOct 3	64°F18°C	56°F14°C	0.13 in3.3 mm· 16%	59%	Drizzle	WNW 9 mph14 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 57°F14°C. Breezy from the WNW at 9 mph14 km/h. 16% chance of drizzle throughout the day. NightMostly cloudy, with a low around 56°F14°C. Breezy from the W at 9 mph14 km/h. 15% chance of drizzle throughout the night.
	SundayOct 4	64°F18°C	55°F13°C	0.18 in4.5 mm· 19%	61%	Showers	WSW 9 mph14 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the WSW at 9 mph14 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the WSW at 9 mph14 km/h. 18% chance of showers throughout the night.
	MondayOct 5	64°F18°C	55°F13°C	0.13 in3.3 mm· 17%	53%	Showers	W 9 mph15 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 56°F13°C. Breezy from the W at 9 to 10 mph15 to 15 km/h. 13% chance of drizzle throughout the day. NightMostly cloudy, with a low around 55°F13°C. Breezy from the W at 9 mph14 km/h. 17% chance of showers throughout the night.
	TuesdayOct 6	64°F18°C	54°F12°C	0.13 in3.4 mm· 19%	54%	Showers	WSW 9 mph15 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 55°F13°C. Breezy from the WSW at 9 mph15 km/h. 17% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the WSW at 9 mph15 km/h. 19% chance of showers throughout the night.

Nearby Cities

Dover10 mi16 km Amesbury17 mi28 km Rochester19 mi31 km Newburyport19 mi31 km Sanford25 mi40 km Haverhill26 mi42 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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