Current Conditions

Okaya, Nagano

69°F21°C

Heavy Rain

Wind

SSW 3 mph5 km/h

Humidity

95%

Cloud Cover

99%

As of Wednesday, September 9, 2026 at 4:30 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Light wind from the NNW around 4 mph6 km/h. 100% chance of heavy rain throughout the day. Humid.

Night

Overcast, with a low around 61°F16°C. Light wind from the N around 4 mph6 km/h. 99% chance of heavy rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Heavy Rain	High 72°F22°C	Low 61°F16°C	Precip 1.88 in47.8 mm100%	Cloud 98%	Wind N 4 mph6 km/h	Wednesday: Overcast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Light wind from the NNW around 4 mph6 km/h. 100% chance of heavy rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 61°F16°C. Light wind from the N around 4 mph6 km/h. 99% chance of heavy rain throughout the night.
Light Rain	High 68°F20°C	Low 59°F15°C	Precip 0.43 in10.9 mm79%	Cloud 94%	Wind E 3 mph4 km/h	Thursday: Overcast and mild, with a high of 68°F20°C and morning low of 59°F15°C. Light wind from the SE around 3 mph4 km/h. 77% chance of light rain throughout the day. Thursday Night: Overcast, with a low around 59°F15°C. Light wind from the ENE around 3 mph4 km/h. 79% chance of light rain throughout the night.
Rain	High 70°F21°C	Low 62°F17°C	Precip 1 in25.3 mm93%	Cloud 92%	Wind E 2 mph3 km/h	Friday: Overcast and warm, with a high of 70°F21°C and morning low of 62°F17°C. Light wind from the E around 2 mph3 km/h. 93% chance of rain throughout the day. Friday Night: Overcast, with a low around 62°F17°C. Light wind from the ESE around 2 mph3 km/h. 84% chance of rain throughout the night.
Light Rain	High 76°F25°C	Low 64°F18°C	Precip 0.2 in5.1 mm64%	Cloud 75%	Wind S 2 mph3 km/h	Saturday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 64°F18°C. Light wind from the S around 2 mph3 km/h. 59% chance of light rain throughout the day. Saturday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the SE around 2 mph3 km/h. 64% chance of light rain throughout the night.
Light Rain	High 77°F25°C	Low 65°F19°C	Precip 0.15 in3.8 mm54%	Cloud 73%	Wind SSW 3 mph5 km/h	Sunday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 65°F19°C. Light wind from the SSW around 4 mph6 km/h. 54% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the SSW around 3 mph4 km/h. 39% chance of drizzle throughout the night.
Light Rain	High 76°F24°C	Low 66°F19°C	Precip 0.19 in4.9 mm72%	Cloud 76%	Wind SW 4 mph6 km/h	Monday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 66°F19°C. Light wind from the SW around 4 mph7 km/h. 72% chance of light rain throughout the day. Humid. Monday Night: Overcast, with a low around 67°F19°C. Light wind from the SSW around 3 mph4 km/h. 55% chance of light rain throughout the night.
Rain	High 71°F22°C	Low 65°F18°C	Precip 0.58 in14.7 mm94%	Cloud 95%	Wind SSW 2 mph4 km/h	Tuesday: Overcast and warm, with a high of 71°F22°C and morning low of 65°F18°C. Light wind from the SSW around 2 mph4 km/h. 94% chance of rain throughout the day. Tuesday Night: Overcast, with a low around 66°F19°C. Light wind from the SSW around 2 mph4 km/h. 92% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	72°F22°C	61°F16°C	1.88 in47.8 mm· 100%	98%	Heavy Rain	N 4 mph6 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Light wind from the NNW around 4 mph6 km/h. 100% chance of heavy rain throughout the day. Humid. NightOvercast, with a low around 61°F16°C. Light wind from the N around 4 mph6 km/h. 99% chance of heavy rain throughout the night.
	ThursdaySep 10	68°F20°C	59°F15°C	0.43 in10.9 mm· 79%	94%	Light Rain	E 3 mph4 km/h
DayOvercast and mild, with a high of 68°F20°C and morning low of 59°F15°C. Light wind from the SE around 3 mph4 km/h. 77% chance of light rain throughout the day. NightOvercast, with a low around 59°F15°C. Light wind from the ENE around 3 mph4 km/h. 79% chance of light rain throughout the night.
	FridaySep 11	70°F21°C	62°F17°C	1 in25.3 mm· 93%	92%	Rain	E 2 mph3 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 62°F17°C. Light wind from the E around 2 mph3 km/h. 93% chance of rain throughout the day. NightOvercast, with a low around 62°F17°C. Light wind from the ESE around 2 mph3 km/h. 84% chance of rain throughout the night.
	SaturdaySep 12	76°F25°C	64°F18°C	0.2 in5.1 mm· 64%	75%	Light Rain	S 2 mph3 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 64°F18°C. Light wind from the S around 2 mph3 km/h. 59% chance of light rain throughout the day. NightMostly cloudy, with a low around 65°F18°C. Light wind from the SE around 2 mph3 km/h. 64% chance of light rain throughout the night.
	SundaySep 13	77°F25°C	65°F19°C	0.15 in3.8 mm· 54%	73%	Light Rain	SSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 65°F19°C. Light wind from the SSW around 4 mph6 km/h. 54% chance of light rain throughout the day. NightMostly cloudy, with a low around 66°F19°C. Light wind from the SSW around 3 mph4 km/h. 39% chance of drizzle throughout the night.
	MondaySep 14	76°F24°C	66°F19°C	0.19 in4.9 mm· 72%	76%	Light Rain	SW 4 mph6 km/h
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 66°F19°C. Light wind from the SW around 4 mph7 km/h. 72% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the SSW around 3 mph4 km/h. 55% chance of light rain throughout the night.
	TuesdaySep 15	71°F22°C	65°F18°C	0.58 in14.7 mm· 94%	95%	Rain	SSW 2 mph4 km/h
DayOvercast and warm, with a high of 71°F22°C and morning low of 65°F18°C. Light wind from the SSW around 2 mph4 km/h. 94% chance of rain throughout the day. NightOvercast, with a low around 66°F19°C. Light wind from the SSW around 2 mph4 km/h. 92% chance of rain throughout the night.
	WednesdaySep 16	70°F21°C	64°F18°C	0.78 in19.9 mm· 98%	94%	Rain	SSE 2 mph4 km/h
DayOvercast and warm, with a high of 70°F21°C and morning low of 64°F18°C. Light wind from the SSE around 2 mph4 km/h. 98% chance of rain throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the SSE around 2 mph4 km/h. 94% chance of rain throughout the night.
	ThursdaySep 17	69°F21°C	63°F17°C	0.69 in17.5 mm· 85%	91%	Rain	ENE 2 mph4 km/h
DayOvercast and warm, with a high of 69°F21°C and morning low of 63°F17°C. Light wind from the ENE around 3 mph4 km/h. 85% chance of rain throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the ENE around 2 mph4 km/h. 80% chance of rain throughout the night.
	FridaySep 18	69°F20°C	62°F16°C	0.52 in13.2 mm· 66%	87%	Light Rain	NE 3 mph5 km/h
DayOvercast and warm, with a high of 69°F20°C and morning low of 62°F16°C. Light wind from the NE around 3 mph6 km/h. 66% chance of light rain throughout the day. NightOvercast, with a low around 62°F17°C. Light wind from the NE around 3 mph4 km/h. 63% chance of light rain throughout the night.
	SaturdaySep 19	68°F20°C	60°F16°C	0.73 in18.5 mm· 58%	84%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 68°F20°C and morning low of 60°F16°C. Light wind from the NE around 4 mph6 km/h. 58% chance of light rain throughout the day. NightOvercast, with a low around 61°F16°C. Light wind from the NE around 3 mph5 km/h. 50% chance of rain throughout the night.
	SundaySep 20	68°F20°C	60°F16°C	0.83 in21.1 mm· 65%	85%	Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 68°F20°C and morning low of 60°F16°C. Light wind from the NE around 4 mph7 km/h. 65% chance of rain throughout the day. NightOvercast, with a low around 61°F16°C. Light wind from the NE around 4 mph6 km/h. 65% chance of rain throughout the night.
	MondaySep 21	70°F21°C	59°F15°C	0.61 in15.4 mm· 59%	78%	Rain	ESE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 59°F15°C. Light wind from the SE around 4 mph7 km/h. 59% chance of light rain throughout the day. NightMostly cloudy, with a low around 60°F16°C. Light wind from the ENE around 3 mph6 km/h. 57% chance of rain throughout the night.
	TuesdaySep 22	71°F21°C	58°F15°C	0.39 in9.8 mm· 40%	69%	Showers	SW 3 mph6 km/h
DayMostly cloudy and warm, with a high of 71°F21°C and morning low of 58°F15°C. Light wind from the SW around 4 mph6 km/h. 39% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Light wind from the W around 3 mph5 km/h. 40% chance of showers throughout the night.
	WednesdaySep 23	71°F22°C	56°F14°C	0.15 in3.7 mm· 26%	62%	Showers	WSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 56°F14°C. Light wind from the SW around 3 mph5 km/h. 26% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F14°C. Light wind from the NW around 3 mph5 km/h. 22% chance of showers throughout the night.

Nearby Cities

Shimosuwa2 mi4 km Suwa4 mi6 km Shiojiri5 mi9 km Tatsuno6 mi9 km Chino7 mi12 km Kinoshita11 mi18 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: 36.0566°N, 138.0451°E·Elevation: 773m·Timezone: Asia/Tokyo·Population: 54,286