Current Conditions

Porsgrunn, Telemark

48°F9°C

Showers

Feels like45°F7°C

Wind

W 8 mph14 km/h

Humidity

71%

Cloud Cover

As of Thursday, September 3, 2026 at 3:23 AM GMT+2

Today's Outlook

Day

Overcast and mild, with a high of 59°F15°C and morning low of 47°F8°C. Light wind from the SW around 4 mph6 km/h. 28% chance of drizzle in the afternoon. Dry air.

Night

Partly cloudy, with a low around 46°F8°C. Breezy from the WSW at 5 to 8 mph8 to 14 km/h. 48% chance of showers in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Showers	High 59°F15°C	Low 46°F8°CFeels 42°F6°C	Precip 0.06 in1.4 mm48%	Cloud 63%	Wind WSW 5 mph7 km/h	Thursday: Overcast and mild, with a high of 59°F15°C and morning low of 47°F8°C. Light wind from the SW around 4 mph6 km/h. 28% chance of drizzle in the afternoon. Dry air. Thursday Night: Partly cloudy, with a low around 46°F8°C. Breezy from the WSW at 5 to 8 mph8 to 14 km/h. 48% chance of showers in the evening.
Light Rain	High 58°F14°C	Low 50°F10°C	Precip 0.16 in4 mm71%	Cloud 86%	Wind N 3 mph5 km/h	Friday: Overcast and mild, with a high of 58°F14°C and morning low of 51°F11°C. Light wind from the NE around 3 mph5 km/h. 57% chance of light rain throughout the day. Dry air. Friday Night: Overcast, with a low around 50°F10°C. Light wind from the WNW around 3 mph4 km/h. 71% chance of light rain throughout the night.
Drizzle	High 64°F18°C	Low 49°F10°C	Precip 0.05 in1.2 mm27%	Cloud 48%	Wind NW 5 mph7 km/h	Saturday: Mostly cloudy and mild, with a high of 64°F18°C and morning low of 51°F10°C. Light wind from the NW around 4 mph7 km/h. 18% chance of drizzle throughout the day. Dry air. Saturday Night: Partly cloudy, with a low around 49°F10°C. Breezy from the WNW at 5 to 8 mph8 to 13 km/h. 27% chance of drizzle overnight.
Showers	High 65°F18°C	Low 50°F10°C	Precip 0.03 in0.8 mm47%	Cloud 59%	Wind W 7 mph11 km/h	Sunday: Mostly cloudy and mild, with a high of 65°F18°C and morning low of 50°F10°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. Dry air. Sunday Night: Mostly cloudy, with a low around 50°F10°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 47% chance of showers in the evening.
Light Rain	High 64°F18°C	Low 56°F13°C	Precip 0.11 in2.9 mm60%	Cloud 89%	Wind SSW 11 mph17 km/h	Monday: Overcast and mild, with a high of 64°F18°C and morning low of 58°F14°C. Breezy from the SSW at 12 to 13 mph19 to 21 km/h. 24% chance of drizzle throughout the day. Monday Night: Overcast, with a low around 56°F13°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 60% chance of light rain throughout the night.
Light Rain	High 61°F16°C	Low 55°F13°C	Precip 0.2 in5 mm59%	Cloud 88%	Wind SSW 8 mph12 km/h	Tuesday: Overcast and mild, with a high of 61°F16°C and morning low of 55°F13°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 49% chance of light rain throughout the day. Tuesday Night: Overcast, with a low around 55°F13°C. Breezy from the SSW at 8 mph12 km/h. 59% chance of light rain throughout the night.
Showers	High 59°F15°C	Low 53°F12°C	Precip 0.41 in10.3 mm57%	Cloud 69%	Wind SSW 9 mph14 km/h	Wednesday: Mostly cloudy and mild, with a high of 59°F15°C and morning low of 54°F12°C. Breezy from the SSW at 9 to 10 mph15 to 17 km/h. 57% chance of light rain throughout the day. Dry air. Wednesday Night: Mostly cloudy, with a low around 53°F12°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 50% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	59°F15°C	46°F8°C Feels 42°F6°C	0.06 in1.4 mm· 48%	63%	Showers	WSW 5 mph7 km/h
DayOvercast and mild, with a high of 59°F15°C and morning low of 47°F8°C. Light wind from the SW around 4 mph6 km/h. 28% chance of drizzle in the afternoon. Dry air. NightPartly cloudy, with a low around 46°F8°C. Breezy from the WSW at 5 to 8 mph8 to 14 km/h. 48% chance of showers in the evening.
	FridaySep 4	58°F14°C	50°F10°C	0.16 in4 mm· 71%	86%	Light Rain	N 3 mph5 km/h
DayOvercast and mild, with a high of 58°F14°C and morning low of 51°F11°C. Light wind from the NE around 3 mph5 km/h. 57% chance of light rain throughout the day. Dry air. NightOvercast, with a low around 50°F10°C. Light wind from the WNW around 3 mph4 km/h. 71% chance of light rain throughout the night.
	SaturdaySep 5	64°F18°C	49°F10°C	0.05 in1.2 mm· 27%	48%	Drizzle	NW 5 mph7 km/h
DayMostly cloudy and mild, with a high of 64°F18°C and morning low of 51°F10°C. Light wind from the NW around 4 mph7 km/h. 18% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 49°F10°C. Breezy from the WNW at 5 to 8 mph8 to 13 km/h. 27% chance of drizzle overnight.
	SundaySep 6	65°F18°C	50°F10°C	0.03 in0.8 mm· 47%	59%	Showers	W 7 mph11 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 50°F10°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. Dry air. NightMostly cloudy, with a low around 50°F10°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 47% chance of showers in the evening.
	MondaySep 7	64°F18°C	56°F13°C	0.11 in2.9 mm· 60%	89%	Light Rain	SSW 11 mph17 km/h
DayOvercast and mild, with a high of 64°F18°C and morning low of 58°F14°C. Breezy from the SSW at 12 to 13 mph19 to 21 km/h. 24% chance of drizzle throughout the day. NightOvercast, with a low around 56°F13°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 60% chance of light rain throughout the night.
	TuesdaySep 8	61°F16°C	55°F13°C	0.2 in5 mm· 59%	88%	Light Rain	SSW 8 mph12 km/h
DayOvercast and mild, with a high of 61°F16°C and morning low of 55°F13°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 49% chance of light rain throughout the day. NightOvercast, with a low around 55°F13°C. Breezy from the SSW at 8 mph12 km/h. 59% chance of light rain throughout the night.
	WednesdaySep 9	59°F15°C	53°F12°C	0.41 in10.3 mm· 57%	69%	Showers	SSW 9 mph14 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 54°F12°C. Breezy from the SSW at 9 to 10 mph15 to 17 km/h. 57% chance of light rain throughout the day. Dry air. NightMostly cloudy, with a low around 53°F12°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 50% chance of showers throughout the night.
	ThursdaySep 10	60°F15°C	51°F11°C	0.23 in5.9 mm· 42%	64%	Showers	SW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 60°F15°C and morning low of 51°F11°C. Breezy from the SW at 9 mph14 km/h. 42% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 51°F11°C. Breezy from the SW at 8 mph12 km/h. 40% chance of showers throughout the night.
	FridaySep 11	61°F16°C	49°F10°C	0.14 in3.5 mm· 34%	55%	Showers	SW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 61°F16°C and morning low of 50°F10°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 34% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 49°F10°C. Light wind from the WSW around 6 mph10 km/h. 25% chance of drizzle throughout the night.
	SaturdaySep 12	60°F16°C	50°F10°C	0.13 in3.4 mm· 24%	60%	Showers	WNW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 50°F10°C. Light wind from the WNW around 6 mph10 km/h. 24% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Light wind from the WNW around 6 mph9 km/h. 23% chance of showers throughout the night.
	SundaySep 13	60°F16°C	50°F10°C Feels 47°F9°C	0.11 in2.7 mm· 24%	59%	Showers	NNW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 50°F10°C. Light wind from the N around 6 mph10 km/h. 24% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Light wind from the NW around 6 mph10 km/h. 19% chance of showers throughout the night.
	MondaySep 14	61°F16°C	50°F10°C	0.09 in2.4 mm· 21%	64%	Drizzle	SW 6 mph9 km/h
DayMostly cloudy and mild, with a high of 61°F16°C and morning low of 50°F10°C. Light wind from the SSW around 6 mph9 km/h. 21% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Light wind from the WSW around 6 mph9 km/h. 19% chance of drizzle throughout the night.
	TuesdaySep 15	60°F16°C	50°F10°C	0.1 in2.5 mm· 26%	66%	Drizzle	WSW 6 mph10 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 50°F10°C. Breezy from the SW at 7 mph11 km/h. 26% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 50°F10°C. Light wind from the WSW around 6 mph10 km/h. 19% chance of drizzle throughout the night.
	WednesdaySep 16	60°F16°C	51°F10°C	0.17 in4.2 mm· 27%	63%	Showers	WSW 7 mph12 km/h
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 51°F11°C. Breezy from the WSW at 8 mph12 km/h. 27% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 51°F10°C. Breezy from the WSW at 7 mph11 km/h. 20% chance of showers throughout the night.
	ThursdaySep 17	59°F15°C	49°F10°C	0.14 in3.6 mm· 27%	63%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 49°F10°C. Breezy from the WSW at 7 mph11 km/h. 27% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 49°F10°C. Breezy from the WSW at 7 mph11 km/h. 24% chance of drizzle throughout the night.

Nearby Cities

Skien5 mi8 km Larvik15 mi24 km Sandefjord20 mi32 km Tønsberg28 mi45 km Horten35 mi56 km Kongsberg36 mi59 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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 59.1405°N, 9.6561°E·Elevation: 9m·Timezone: Europe/Oslo·Population: 34,377