Current Conditions

Nagano, Nagano

70°F21°C

Heavy Rain

Wind

N 3 mph5 km/h

Humidity

91%

Cloud Cover

100%

As of Thursday, September 3, 2026 at 11:42 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 70°F21°C. Light wind from the N around 2 mph4 km/h. 100% chance of heavy rain throughout the day. Humid.

Night

Overcast, with a low around 65°F19°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Heavy Rain	High 70°F21°C	Low 65°F19°C	Precip 1.39 in35.4 mm100%	Cloud 100%	Wind NNE 2 mph4 km/h	Thursday: Overcast and warm, with a high of 70°F21°C. Light wind from the N around 2 mph4 km/h. 100% chance of heavy rain throughout the day. Humid. Thursday Night: Overcast, with a low around 65°F19°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.
Light Rain	High 68°F20°C	Low 64°F18°C	Precip 0.26 in6.5 mm81%	Cloud 100%	Wind NNE 2 mph4 km/h	Friday: Overcast and warm, with a high of 68°F20°C. Light wind from the NNE around 2 mph4 km/h. 73% chance of light rain throughout the day. Friday Night: Overcast, with a low around 64°F18°C. Light wind from the NNE around 2 mph4 km/h. 81% chance of light rain throughout the night.
Light Rain	High 73°F23°C	Low 62°F17°C	Precip 0.14 in3.5 mm55%	Cloud 89%	Wind NE 3 mph5 km/h	Saturday: Overcast and warm, with a high of 73°F23°C and morning low of 62°F17°C. Light wind from the NE around 3 mph5 km/h. 52% chance of light rain throughout the day. Saturday Night: Overcast, with a low around 62°F17°C. Light wind from the NE around 2 mph4 km/h. 55% chance of light rain throughout the night.
Light Rain	High 71°F21°C	Low 62°F17°C	Precip 0.15 in3.9 mm50%	Cloud 93%	Wind SSE 5 mph8 km/h	Sunday: Overcast and warm, with a high of 71°F21°C and morning low of 62°F17°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 28% chance of drizzle around midday. Sunday Night: Overcast, with a low around 63°F17°C. Light wind from the SSE around 4 mph6 km/h. 50% chance of light rain throughout the night.
Rain	High 72°F22°C	Low 63°F17°C	Precip 1.15 in29.1 mm84%	Cloud 92%	Wind S 3 mph5 km/h	Monday: Overcast and warm, with a high of 72°F22°C and morning low of 63°F17°C. Light wind from the S around 3 mph5 km/h. 84% chance of rain throughout the day. Humid. Monday Night: Overcast, with a low around 63°F17°C. Light wind from the SSE around 3 mph5 km/h. 76% chance of rain throughout the night.
Light Rain	High 77°F25°C	Low 66°F19°C	Precip 0.56 in14.3 mm72%	Cloud 81%	Wind SE 2 mph4 km/h	Tuesday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Light wind from the SE around 2 mph4 km/h. 72% chance of light rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 66°F19°C. Light wind from the ESE around 2 mph4 km/h. 72% chance of light rain throughout the night.
Rain	High 73°F23°C	Low 66°F19°C	Precip 1.03 in26.2 mm93%	Cloud 91%	Wind N 3 mph5 km/h	Wednesday: Overcast and warm, with a high of 73°F23°C and morning low of 68°F20°C. Light wind from the N around 3 mph5 km/h. 93% chance of rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 66°F19°C. Light wind from the NNE around 3 mph4 km/h. 93% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	70°F21°C	65°F19°C	1.39 in35.4 mm· 100%	100%	Heavy Rain	NNE 2 mph4 km/h
DayOvercast and warm, with a high of 70°F21°C. Light wind from the N around 2 mph4 km/h. 100% chance of heavy rain throughout the day. Humid. NightOvercast, with a low around 65°F19°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.
	FridaySep 4	68°F20°C	64°F18°C	0.26 in6.5 mm· 81%	100%	Light Rain	NNE 2 mph4 km/h
DayOvercast and warm, with a high of 68°F20°C. Light wind from the NNE around 2 mph4 km/h. 73% chance of light rain throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the NNE around 2 mph4 km/h. 81% chance of light rain throughout the night.
	SaturdaySep 5	73°F23°C	62°F17°C	0.14 in3.5 mm· 55%	89%	Light Rain	NE 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 62°F17°C. Light wind from the NE around 3 mph5 km/h. 52% chance of light rain throughout the day. NightOvercast, with a low around 62°F17°C. Light wind from the NE around 2 mph4 km/h. 55% chance of light rain throughout the night.
	SundaySep 6	71°F21°C	62°F17°C	0.15 in3.9 mm· 50%	93%	Light Rain	SSE 5 mph8 km/h
DayOvercast and warm, with a high of 71°F21°C and morning low of 62°F17°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 28% chance of drizzle around midday. NightOvercast, with a low around 63°F17°C. Light wind from the SSE around 4 mph6 km/h. 50% chance of light rain throughout the night.
	MondaySep 7	72°F22°C	63°F17°C	1.15 in29.1 mm· 84%	92%	Rain	S 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 63°F17°C. Light wind from the S around 3 mph5 km/h. 84% chance of rain throughout the day. Humid. NightOvercast, with a low around 63°F17°C. Light wind from the SSE around 3 mph5 km/h. 76% chance of rain throughout the night.
	TuesdaySep 8	77°F25°C	66°F19°C	0.56 in14.3 mm· 72%	81%	Light Rain	SE 2 mph4 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 66°F19°C. Light wind from the SE around 2 mph4 km/h. 72% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the ESE around 2 mph4 km/h. 72% chance of light rain throughout the night.
	WednesdaySep 9	73°F23°C	66°F19°C	1.03 in26.2 mm· 93%	91%	Rain	N 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 68°F20°C. Light wind from the N around 3 mph5 km/h. 93% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NNE around 3 mph4 km/h. 93% chance of rain throughout the night.
	ThursdaySep 10	68°F20°C	64°F18°C	1.03 in26.2 mm· 91%	96%	Rain	NNE 3 mph5 km/h
DayOvercast and mild, with a high of 68°F20°C. Light wind from the NNE around 3 mph5 km/h. 91% chance of rain throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the NNE around 3 mph5 km/h. 86% chance of rain throughout the night.
	FridaySep 11	70°F21°C	63°F17°C	0.77 in19.5 mm· 77%	89%	Rain	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 63°F17°C. Light wind from the ENE around 3 mph5 km/h. 74% chance of rain throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the ENE around 3 mph4 km/h. 77% chance of rain throughout the night.
	SaturdaySep 12	73°F23°C	64°F18°C	0.47 in12 mm· 74%	85%	Light Rain	E 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 64°F18°C. Light wind from the E around 3 mph5 km/h. 74% chance of light rain throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the E around 3 mph4 km/h. 65% chance of light rain throughout the night.
	SundaySep 13	73°F23°C	64°F18°C	0.38 in9.7 mm· 78%	82%	Light Rain	NE 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 64°F18°C. Light wind from the NE around 3 mph5 km/h. 78% chance of light rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the ENE around 3 mph4 km/h. 68% chance of light rain throughout the night.
	MondaySep 14	71°F22°C	63°F17°C	0.57 in14.5 mm· 80%	85%	Rain	NE 3 mph4 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 63°F17°C. Light wind from the NE around 3 mph5 km/h. 80% chance of rain throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the ENE around 3 mph4 km/h. 73% chance of light rain throughout the night.
	TuesdaySep 15	70°F21°C	62°F17°C	0.59 in15.1 mm· 76%	90%	Rain	ENE 3 mph4 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 62°F17°C. Light wind from the ENE around 3 mph5 km/h. 73% chance of rain throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the ENE around 3 mph4 km/h. 76% chance of light rain throughout the night.
	WednesdaySep 16	71°F21°C	62°F17°C	0.56 in14.3 mm· 76%	87%	Rain	ENE 3 mph4 km/h
DayOvercast and warm, with a high of 71°F21°C and morning low of 62°F17°C. Light wind from the ENE around 3 mph5 km/h. 76% chance of rain throughout the day. NightOvercast, with a low around 62°F17°C. Light wind from the ENE around 2 mph4 km/h. 68% chance of light rain throughout the night.
	ThursdaySep 17	70°F21°C	61°F16°C	0.52 in13.3 mm· 72%	89%	Light Rain	ESE 3 mph4 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 61°F16°C. Light wind from the ESE around 3 mph5 km/h. 72% chance of light rain throughout the day. NightOvercast, with a low around 62°F17°C. Light wind from the ESE around 2 mph4 km/h. 62% chance of light rain throughout the night.

Nearby Cities

Suzaka7 mi12 km Chikuma10 mi16 km Nakano12 mi20 km Sakaki13 mi20 km Iiyama17 mi28 km Ueda18 mi29 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: 36.6500°N, 138.1833°E·Elevation: 372m·Timezone: Asia/Tokyo·Population: 372,760