Current Conditions

Saku, Nagano

69°F21°C

Rain

Wind

E 3 mph5 km/h

Humidity

88%

Cloud Cover

86%

As of Thursday, August 13, 2026 at 6:52 PM GMT+9

Today's Outlook

Night

Overcast, with a low around 66°F19°C. Light wind from the E around 3 mph4 km/h. 94% chance of rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 73°F23°C	Low 66°F19°C	Precip 0.95 in24.2 mm99%	Cloud 93%	Wind E 3 mph5 km/h	Friday: Overcast and warm, with a high of 73°F23°C and morning low of 66°F19°C. Light wind from the E around 3 mph6 km/h. 99% chance of rain throughout the day. Humid. Friday Night: Overcast, with a low around 66°F19°C. Light wind from the E around 3 mph4 km/h. 94% chance of rain throughout the night.
Rain	High 75°F24°C	Low 66°F19°C	Precip 0.34 in8.7 mm98%	Cloud 92%	Wind ESE 3 mph5 km/h	Saturday: Overcast and warm, with a high of 75°F24°C and morning low of 66°F19°C. Light wind from the ESE around 4 mph6 km/h. 98% chance of rain throughout the day. Humid. Saturday Night: Overcast, with a low around 66°F19°C. Light wind from the ESE around 3 mph5 km/h. 95% chance of light rain throughout the night.
Light Rain	High 77°F25°C	Low 66°F19°C	Precip 0.07 in1.9 mm39%	Cloud 91%	Wind ESE 4 mph6 km/h	Sunday: Overcast and warm, with a high of 77°F25°C and morning low of 66°F19°C. Light wind from the ESE around 4 mph7 km/h. 39% chance of drizzle throughout the day. Sunday Night: Overcast, with a low around 67°F19°C. Light wind from the E around 3 mph5 km/h. 34% chance of light rain throughout the night.
Drizzle	High 78°F25°C	Low 66°F19°C	Precip 0.04 in0.9 mm30%	Cloud 96%	Wind ESE 3 mph5 km/h	Monday: Overcast and warm, with a high of 78°F25°C and morning low of 66°F19°C. Light wind from the SE around 3 mph5 km/h. 30% chance of drizzle around midday. Monday Night: Overcast, with a low around 66°F19°C. Light wind from the ESE around 3 mph5 km/h. 21% chance of drizzle in the evening.
Light Rain	High 80°F27°C	Low 67°F20°C	Precip 0.1 in2.5 mm58%	Cloud 83%	Wind ESE 2 mph4 km/h	Tuesday: Overcast and warm, with a high of 80°F27°C and morning low of 67°F20°C. Light wind from the SE around 2 mph4 km/h. 58% chance of drizzle around midday. Humid. Tuesday Night: Overcast, with a low around 68°F20°C. Light wind from the ESE around 2 mph4 km/h. 35% chance of light rain throughout the night.
Light Rain	High 81°F27°C	Low 69°F20°C	Precip 0.15 in3.7 mm83%	Cloud 73%	Wind E 2 mph3 km/h	Wednesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Light wind from the ENE around 2 mph3 km/h. 83% chance of showers throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the ESE around 2 mph3 km/h. 61% chance of light rain throughout the night.
Rain	High 81°F27°C	Low 69°F20°C	Precip 0.27 in6.8 mm85%	Cloud 72%	Wind E 2 mph3 km/h	Thursday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Light wind from the E around 2 mph4 km/h. 85% chance of rain throughout the day. Humid. Thursday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the ESE around 2 mph3 km/h. 75% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	FridayAug 14	73°F23°C	66°F19°C	0.95 in24.2 mm· 99%	93%	Rain	E 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 66°F19°C. Light wind from the E around 3 mph6 km/h. 99% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the E around 3 mph4 km/h. 94% chance of rain throughout the night.
	SaturdayAug 15	75°F24°C	66°F19°C	0.34 in8.7 mm· 98%	92%	Rain	ESE 3 mph5 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 66°F19°C. Light wind from the ESE around 4 mph6 km/h. 98% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the ESE around 3 mph5 km/h. 95% chance of light rain throughout the night.
	SundayAug 16	77°F25°C	66°F19°C	0.07 in1.9 mm· 39%	91%	Light Rain	ESE 4 mph6 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 66°F19°C. Light wind from the ESE around 4 mph7 km/h. 39% chance of drizzle throughout the day. NightOvercast, with a low around 67°F19°C. Light wind from the E around 3 mph5 km/h. 34% chance of light rain throughout the night.
	MondayAug 17	78°F25°C	66°F19°C	0.04 in0.9 mm· 30%	96%	Drizzle	ESE 3 mph5 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 66°F19°C. Light wind from the SE around 3 mph5 km/h. 30% chance of drizzle around midday. NightOvercast, with a low around 66°F19°C. Light wind from the ESE around 3 mph5 km/h. 21% chance of drizzle in the evening.
	TuesdayAug 18	80°F27°C	67°F20°C	0.1 in2.5 mm· 58%	83%	Light Rain	ESE 2 mph4 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 67°F20°C. Light wind from the SE around 2 mph4 km/h. 58% chance of drizzle around midday. Humid. NightOvercast, with a low around 68°F20°C. Light wind from the ESE around 2 mph4 km/h. 35% chance of light rain throughout the night.
	WednesdayAug 19	81°F27°C	69°F20°C	0.15 in3.7 mm· 83%	73%	Light Rain	E 2 mph3 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Light wind from the ENE around 2 mph3 km/h. 83% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the ESE around 2 mph3 km/h. 61% chance of light rain throughout the night.
	ThursdayAug 20	81°F27°C	69°F20°C	0.27 in6.8 mm· 85%	72%	Rain	E 2 mph3 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F20°C. Light wind from the E around 2 mph4 km/h. 85% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the ESE around 2 mph3 km/h. 75% chance of light rain throughout the night.
	FridayAug 21	79°F26°C	68°F20°C	0.27 in6.9 mm· 87%	80%	Light Rain	ESE 2 mph4 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 68°F20°C. Light wind from the ESE around 2 mph4 km/h. 87% chance of light rain throughout the day. Humid. NightOvercast, with a low around 68°F20°C. Light wind from the ESE around 2 mph3 km/h. 72% chance of light rain throughout the night.
	SaturdayAug 22	80°F27°C	67°F20°C	0.19 in4.9 mm· 65%	73%	Light Rain	SE 3 mph4 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 67°F20°C. Light wind from the SSE around 3 mph5 km/h. 65% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the ESE around 2 mph4 km/h. 52% chance of light rain throughout the night.
	SundayAug 23	80°F27°C	68°F20°C	0.16 in4 mm· 58%	73%	Light Rain	SSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 68°F20°C. Light wind from the SW around 3 mph5 km/h. 58% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SE around 2 mph4 km/h. 41% chance of light rain throughout the night.
	MondayAug 24	81°F27°C	68°F20°C	0.1 in2.6 mm· 48%	66%	Showers	SSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Light wind from the SW around 3 mph5 km/h. 48% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SSE around 3 mph4 km/h. 37% chance of drizzle throughout the night.
	TuesdayAug 25	82°F28°C	67°F20°C	0.1 in2.6 mm· 44%	65%	Showers	SSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 67°F20°C. Light wind from the SW around 3 mph5 km/h. 44% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SSE around 3 mph4 km/h. 29% chance of drizzle throughout the night.
	WednesdayAug 26	82°F28°C	68°F20°C	0.17 in4.4 mm· 47%	61%	Showers	SSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Light wind from the SW around 3 mph5 km/h. 47% chance of showers throughout the day. NightMostly cloudy, with a low around 69°F20°C. Light wind from the SSE around 3 mph4 km/h. 42% chance of showers throughout the night.
	ThursdayAug 27	81°F27°C	68°F20°C	0.18 in4.5 mm· 55%	71%	Light Rain	SSE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Light wind from the S around 3 mph5 km/h. 55% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SE around 3 mph4 km/h. 51% chance of light rain throughout the night.
	FridayAug 28	79°F26°C	68°F20°C	0.17 in4.4 mm· 64%	73%	Light Rain	SE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 68°F20°C. Light wind from the ESE around 3 mph5 km/h. 64% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SE around 2 mph4 km/h. 21% chance of drizzle 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.

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Coordinates: 36.2167°N, 138.4833°E·Elevation: 684m·Timezone: Asia/Tokyo·Population: 99,131