Current Conditions

Iiyama, Nagano

71°F22°C

Heavy Rain

Wind

NNW 2 mph4 km/h

Humidity

92%

Cloud Cover

100%

As of Thursday, September 3, 2026 at 7:48 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°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 67°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 72°F22°C	Low 67°F19°C	Precip 1.29 in32.7 mm100%	Cloud 100%	Wind SSE 2 mph4 km/h	Thursday: Overcast and warm, with a high of 72°F22°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 67°F19°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.
Light Rain	High 69°F21°C	Low 65°F18°C	Precip 0.26 in6.6 mm73%	Cloud 100%	Wind N 3 mph5 km/h	Friday: Overcast and warm, with a high of 69°F21°C. Light wind from the N around 3 mph5 km/h. 72% chance of light rain throughout the day. Friday Night: Overcast, with a low around 65°F18°C. Light wind from the N around 3 mph4 km/h. 73% chance of light rain throughout the night.
Light Rain	High 74°F23°C	Low 62°F17°C	Precip 0.11 in2.9 mm52%	Cloud 82%	Wind NE 3 mph5 km/h	Saturday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Light wind from the NNE around 3 mph6 km/h. 52% chance of drizzle throughout the day. Saturday Night: Overcast, with a low around 63°F17°C. Light wind from the ENE around 2 mph4 km/h. 43% chance of light rain overnight.
Light Rain	High 74°F23°C	Low 63°F17°C	Precip 0.08 in2 mm33%	Cloud 91%	Wind SSE 6 mph10 km/h	Sunday: Overcast and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the SSE at 7 to 8 mph11 to 14 km/h. 14% chance of drizzle around midday. Sunday Night: Overcast, with a low around 64°F18°C. Breezy from the SSE at 5 to 7 mph9 to 11 km/h. 33% chance of light rain in the evening.
Rain	High 72°F22°C	Low 65°F18°C	Precip 1.03 in26.2 mm83%	Cloud 93%	Wind SSE 4 mph7 km/h	Monday: Overcast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Light wind from the SSE around 4 mph6 km/h. 83% chance of rain throughout the day. Humid. Monday Night: Overcast, with a low around 65°F18°C. Light wind from the SSE around 4 mph7 km/h. 68% chance of rain throughout the night.
Light Rain	High 78°F26°C	Low 66°F19°C	Precip 0.51 in12.9 mm68%	Cloud 78%	Wind SSE 3 mph5 km/h	Tuesday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 66°F19°C. Light wind from the SSE around 3 mph5 km/h. 68% chance of light rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 67°F19°C. Light wind from the SSE around 3 mph5 km/h. 63% chance of light rain throughout the night.
Rain	High 74°F24°C	Low 68°F20°C	Precip 0.78 in19.7 mm93%	Cloud 90%	Wind N 3 mph5 km/h	Wednesday: Overcast and warm, with a high of 74°F24°C and morning low of 69°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 68°F20°C. Light wind from the NNE around 3 mph5 km/h. 88% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	72°F22°C	67°F19°C	1.29 in32.7 mm· 100%	100%	Heavy Rain	SSE 2 mph4 km/h
DayOvercast and warm, with a high of 72°F22°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 67°F19°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.
	FridaySep 4	69°F21°C	65°F18°C	0.26 in6.6 mm· 73%	100%	Light Rain	N 3 mph5 km/h
DayOvercast and warm, with a high of 69°F21°C. Light wind from the N around 3 mph5 km/h. 72% chance of light rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the N around 3 mph4 km/h. 73% chance of light rain throughout the night.
	SaturdaySep 5	74°F23°C	62°F17°C	0.11 in2.9 mm· 52%	82%	Light Rain	NE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 62°F17°C. Light wind from the NNE around 3 mph6 km/h. 52% chance of drizzle throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the ENE around 2 mph4 km/h. 43% chance of light rain overnight.
	SundaySep 6	74°F23°C	63°F17°C	0.08 in2 mm· 33%	91%	Light Rain	SSE 6 mph10 km/h
DayOvercast and warm, with a high of 74°F23°C and morning low of 63°F17°C. Breezy from the SSE at 7 to 8 mph11 to 14 km/h. 14% chance of drizzle around midday. NightOvercast, with a low around 64°F18°C. Breezy from the SSE at 5 to 7 mph9 to 11 km/h. 33% chance of light rain in the evening.
	MondaySep 7	72°F22°C	65°F18°C	1.03 in26.2 mm· 83%	93%	Rain	SSE 4 mph7 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Light wind from the SSE around 4 mph6 km/h. 83% chance of rain throughout the day. Humid. NightOvercast, with a low around 65°F18°C. Light wind from the SSE around 4 mph7 km/h. 68% chance of rain throughout the night.
	TuesdaySep 8	78°F26°C	66°F19°C	0.51 in12.9 mm· 68%	78%	Light Rain	SSE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 66°F19°C. Light wind from the SSE around 3 mph5 km/h. 68% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the SSE around 3 mph5 km/h. 63% chance of light rain throughout the night.
	WednesdaySep 9	74°F24°C	68°F20°C	0.78 in19.7 mm· 93%	90%	Rain	N 3 mph5 km/h
DayOvercast and warm, with a high of 74°F24°C and morning low of 69°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 68°F20°C. Light wind from the NNE around 3 mph5 km/h. 88% chance of rain throughout the night.
	ThursdaySep 10	69°F21°C	65°F18°C	0.85 in21.5 mm· 89%	95%	Rain	NNE 3 mph5 km/h
DayOvercast and warm, with a high of 69°F21°C and morning low of 65°F18°C. Light wind from the N around 3 mph6 km/h. 89% chance of rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the NNE around 3 mph5 km/h. 81% chance of rain throughout the night.
	FridaySep 11	70°F21°C	63°F17°C	0.54 in13.7 mm· 73%	89%	Light Rain	NE 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 NE around 3 mph5 km/h. 73% chance of light rain throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the NE around 3 mph5 km/h. 68% chance of light rain throughout the night.
	SaturdaySep 12	72°F22°C	64°F18°C	0.31 in7.8 mm· 61%	84%	Light Rain	ESE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 64°F18°C. Light wind from the ESE around 3 mph5 km/h. 61% chance of light rain throughout the day. NightOvercast, with a low around 64°F18°C. Light wind from the ESE around 3 mph5 km/h. 54% chance of light rain throughout the night.
	SundaySep 13	73°F23°C	65°F18°C	0.34 in8.7 mm· 76%	84%	Light Rain	E 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 65°F18°C. Light wind from the NE around 3 mph5 km/h. 76% chance of light rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the ESE around 3 mph5 km/h. 62% chance of light rain throughout the night.
	MondaySep 14	72°F22°C	65°F18°C	0.51 in12.9 mm· 78%	83%	Rain	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Light wind from the NE around 3 mph5 km/h. 78% chance of rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the E around 3 mph4 km/h. 70% chance of light rain throughout the night.
	TuesdaySep 15	72°F22°C	63°F17°C	0.44 in11.3 mm· 73%	87%	Light Rain	E 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 NE around 3 mph5 km/h. 73% 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. 61% chance of light rain throughout the night.
	WednesdaySep 16	72°F22°C	63°F17°C	0.51 in12.9 mm· 74%	87%	Light Rain	E 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 ENE 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 ESE around 3 mph4 km/h. 67% chance of light rain throughout the night.
	ThursdaySep 17	72°F22°C	62°F17°C	0.42 in10.7 mm· 69%	83%	Light Rain	ESE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 62°F17°C. Light wind from the ESE around 3 mph5 km/h. 69% chance of light rain throughout the day. NightOvercast, with a low around 63°F17°C. Light wind from the SE around 3 mph5 km/h. 59% chance of light rain throughout the night.

Nearby Cities

Nakano7 mi11 km Arai13 mi21 km Myoko14 mi22 km Suzaka14 mi23 km Nagano17 mi28 km Jōetsu22 mi35 km

About This Forecast

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Coordinates: 36.8500°N, 138.3667°E·Elevation: 311m·Timezone: Asia/Tokyo·Population: 20,118