Current Conditions

Saku, Nagano

78°F26°C

Showers

Wind

WNW 1 mph2 km/h

Humidity

73%

Cloud Cover

35%

As of Friday, July 24, 2026 at 9:12 AM GMT+9

Today's Outlook

Day

Partly cloudy and warm, with a high of 83°F29°C and morning low of 72°F22°C. Light wind from the NNW around 2 mph3 km/h. 82% chance of showers throughout the day. Humid.

Night

Mostly cloudy, with a low around 72°F22°C. Light wind from the NE around 2 mph3 km/h. 77% chance of showers in the evening.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
FridayJul 24	Showers	High 83°F29°CFeels 86°F30°C	Low 72°F22°C	Precip 0.17 in4.3 mm82%	Cloud 53%	Wind N 2 mph3 km/h	Friday: Partly cloudy and warm, with a high of 83°F29°C and morning low of 72°F22°C. Light wind from the NNW around 2 mph3 km/h. 82% chance of showers throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the NE around 2 mph3 km/h. 77% chance of showers in the evening.
SaturdayJul 25	Drizzle	High 83°F28°C	Low 70°F21°C	Precip 0.03 in0.8 mm44%	Cloud 33%	Wind NW 4 mph6 km/h	Saturday: Partly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the NW at 5 to 7 mph8 to 11 km/h. 44% chance of drizzle in the afternoon. Humid. Saturday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the NNW around 2 mph4 km/h. 32% chance of drizzle in the evening.
SundayJul 26	Rain	High 78°F25°C	Low 69°F20°C	Precip 0.46 in11.7 mm100%	Cloud 83%	Wind NNW 2 mph3 km/h	Sunday: Overcast and warm, with a high of 78°F25°C and morning low of 69°F20°C. Light wind from the NNW around 2 mph3 km/h. 97% chance of rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 69°F20°C. Light wind from the NNE around 2 mph3 km/h. 100% chance of rain in the evening.
MondayJul 27	Light Rain	High 78°F25°C	Low 66°F19°C	Precip 0.32 in8.1 mm93%	Cloud 85%	Wind NNW 2 mph4 km/h	Monday: Overcast and warm, with a high of 78°F25°C and morning low of 67°F19°C. Light wind from the NNW around 3 mph5 km/h. 93% chance of light rain throughout the day. Humid. Monday Night: Overcast, with a low around 66°F19°C. Light wind from the NE around 2 mph3 km/h. 89% chance of light rain throughout the night.
TuesdayJul 28	Rain	High 78°F25°C	Low 67°F19°C	Precip 0.36 in9.2 mm97%	Cloud 82%	Wind SSE 2 mph3 km/h	Tuesday: Overcast and warm, with a high of 78°F25°C and morning low of 67°F19°C. Light wind from the NW around 2 mph3 km/h. 97% chance of rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 67°F19°C. Light wind from the SE around 2 mph3 km/h. 95% chance of rain throughout the night.
WednesdayJul 29	Light Rain	High 80°F27°C	Low 66°F19°C	Precip 0.12 in3.1 mm72%	Cloud 72%	Wind WNW 3 mph4 km/h	Wednesday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 67°F19°C. Light wind from the WNW around 3 mph5 km/h. 72% chance of showers throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the W around 2 mph4 km/h. 45% chance of light rain throughout the night.
ThursdayJul 30	Drizzle	High 85°F29°C	Low 68°F20°C	Precip 0.04 in1 mm22%	Cloud 72%	Wind WNW 3 mph5 km/h	Thursday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 68°F20°C. Light wind from the WNW around 3 mph5 km/h. 19% chance of drizzle around midday. Humid. Thursday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the WNW around 2 mph4 km/h. 22% chance of drizzle in the evening.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	83°F29°C Feels 86°F30°C	72°F22°C	0.17 in4.3 mm· 82%	53%	Showers	N 2 mph3 km/h
DayPartly cloudy and warm, with a high of 83°F29°C and morning low of 72°F22°C. Light wind from the NNW around 2 mph3 km/h. 82% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the NE around 2 mph3 km/h. 77% chance of showers in the evening.
	SaturdayJul 25	83°F28°C	70°F21°C	0.03 in0.8 mm· 44%	33%	Drizzle	NW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the NW at 5 to 7 mph8 to 11 km/h. 44% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 70°F21°C. Light wind from the NNW around 2 mph4 km/h. 32% chance of drizzle in the evening.
	SundayJul 26	78°F25°C	69°F20°C	0.46 in11.7 mm· 100%	83%	Rain	NNW 2 mph3 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 69°F20°C. Light wind from the NNW around 2 mph3 km/h. 97% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 69°F20°C. Light wind from the NNE around 2 mph3 km/h. 100% chance of rain in the evening.
	MondayJul 27	78°F25°C	66°F19°C	0.32 in8.1 mm· 93%	85%	Light Rain	NNW 2 mph4 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 67°F19°C. Light wind from the NNW around 3 mph5 km/h. 93% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NE around 2 mph3 km/h. 89% chance of light rain throughout the night.
	TuesdayJul 28	78°F25°C	67°F19°C	0.36 in9.2 mm· 97%	82%	Rain	SSE 2 mph3 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 67°F19°C. Light wind from the NW around 2 mph3 km/h. 97% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the SE around 2 mph3 km/h. 95% chance of rain throughout the night.
	WednesdayJul 29	80°F27°C	66°F19°C	0.12 in3.1 mm· 72%	72%	Light Rain	WNW 3 mph4 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 67°F19°C. Light wind from the WNW around 3 mph5 km/h. 72% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 66°F19°C. Light wind from the W around 2 mph4 km/h. 45% chance of light rain throughout the night.
	ThursdayJul 30	85°F29°C	68°F20°C	0.04 in1 mm· 22%	72%	Drizzle	WNW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 68°F20°C. Light wind from the WNW around 3 mph5 km/h. 19% chance of drizzle around midday. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the WNW around 2 mph4 km/h. 22% chance of drizzle in the evening.
	FridayJul 31	86°F30°C	70°F21°C	0.02 in0.6 mm· 28%	64%	Drizzle	NW 3 mph5 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the NW around 3 mph5 km/h. 28% chance of drizzle in the afternoon. Humid. NightMostly cloudy, with a low around 70°F21°C. Light wind from the NNW around 3 mph4 km/h. 19% chance of drizzle in the evening.
	SaturdayAug 1	86°F30°C Feels 89°F32°C	71°F22°C	0.06 in1.4 mm· 41%	55%	Showers	NNE 2 mph4 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 71°F22°C. Light wind from the NNW around 2 mph4 km/h. 41% chance of showers around midday. Humid. NightMostly cloudy, with a low around 71°F22°C. Light wind from the ENE around 2 mph4 km/h. 31% chance of drizzle in the evening.
	SundayAug 2	86°F30°C Feels 89°F32°C	72°F22°C	0.11 in2.8 mm· 63%	51%	Showers	E 2 mph4 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 72°F22°C. Light wind from the ENE around 2 mph4 km/h. 63% chance of showers around midday. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the E around 2 mph3 km/h. 44% chance of showers throughout the night.
	MondayAug 3	85°F29°C Feels 88°F31°C	72°F22°C	0.12 in3.1 mm· 64%	56%	Showers	E 2 mph4 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Light wind from the ENE around 3 mph4 km/h. 64% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the E around 2 mph4 km/h. 54% chance of showers in the evening.
	TuesdayAug 4	84°F29°C	72°F22°C	0.16 in4.1 mm· 56%	61%	Showers	E 3 mph5 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 72°F22°C. Light wind from the E around 4 mph6 km/h. 56% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the E around 3 mph4 km/h. 39% chance of showers throughout the night.
	WednesdayAug 5	82°F28°C	71°F22°C	0.29 in7.3 mm· 53%	65%	Showers	E 4 mph6 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 71°F22°C. Light wind from the E around 4 mph7 km/h. 53% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Light wind from the E around 3 mph6 km/h. 41% chance of showers throughout the night.
	ThursdayAug 6	81°F27°C	70°F21°C	0.36 in9.2 mm· 58%	71%	Light Rain	E 4 mph7 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Light wind from the E around 5 mph8 km/h. 58% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Light wind from the E around 4 mph6 km/h. 44% chance of light rain throughout the night.
	FridayAug 7	81°F27°C	70°F21°C	0.65 in16.5 mm· 61%	76%	Rain	E 5 mph7 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Light wind from the E around 5 mph8 km/h. 61% chance of rain throughout the day. Humid. NightOvercast, with a low around 71°F21°C. Light wind from the E around 4 mph6 km/h. 50% chance of light rain throughout the night.

Nearby Cities

Komoro7 mi12 km Miyota8 mi14 km Tōmi12 mi19 km Karuizawa12 mi20 km Kamimaruko14 mi22 km Ueda17 mi27 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: 36.2167°N, 138.4833°E·Elevation: 684m·Timezone: Asia/Tokyo·Population: 99,131