Current Conditions

Arai, Niigata

73°F23°C

Rain

Wind

S 3 mph5 km/h

Humidity

90%

Cloud Cover

98%

As of Thursday, September 3, 2026 at 3:55 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 73°F23°C. Light wind from the SW around 3 mph4 km/h. 100% chance of rain throughout the day. Heavy, humid air.

Night

Overcast, with a low around 70°F21°C. Light wind from the SSW around 3 mph4 km/h. 96% 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 70°F21°C	Precip 1.34 in34 mm100%	Cloud 100%	Wind SSW 3 mph4 km/h	Thursday: Overcast and warm, with a high of 73°F23°C. Light wind from the SW around 3 mph4 km/h. 100% chance of rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 70°F21°C. Light wind from the SSW around 3 mph4 km/h. 96% chance of rain throughout the night.
Light Rain	High 71°F22°C	Low 67°F19°C	Precip 0.33 in8.4 mm93%	Cloud 100%	Wind NNE 3 mph5 km/h	Friday: Overcast and warm, with a high of 71°F22°C. Light wind from the NNE around 3 mph5 km/h. 90% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 67°F19°C. Light wind from the N around 3 mph5 km/h. 93% chance of light rain throughout the night.
Light Rain	High 75°F24°C	Low 64°F18°C	Precip 0.08 in2.1 mm37%	Cloud 83%	Wind NE 4 mph6 km/h	Saturday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Light wind from the NE around 4 mph7 km/h. 37% chance of light rain in the morning. Saturday Night: Overcast, with a low around 65°F18°C. Light wind from the ENE around 3 mph5 km/h. 31% chance of light rain overnight.
Light Rain	High 76°F24°C	Low 65°F19°C	Precip 0.14 in3.6 mm42%	Cloud 91%	Wind SSE 7 mph11 km/h	Sunday: Overcast and warm, with a high of 76°F24°C and morning low of 65°F19°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 27% chance of light rain throughout the day. Sunday Night: Overcast, with a low around 66°F19°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 42% chance of light rain in the evening.
Rain	High 73°F23°C	Low 67°F19°C	Precip 1.11 in28.2 mm85%	Cloud 93%	Wind SSE 5 mph7 km/h	Monday: Overcast and warm, with a high of 73°F23°C and morning low of 67°F19°C. Light wind from the SSE around 4 mph7 km/h. 85% chance of rain throughout the day. Humid. Monday Night: Overcast, with a low around 67°F19°C. Breezy from the SSE at 5 to 7 mph8 to 12 km/h. 73% chance of rain throughout the night.
Light Rain	High 79°F26°C	Low 69°F21°C	Precip 0.58 in14.7 mm74%	Cloud 80%	Wind SSE 3 mph5 km/h	Tuesday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Light wind from the NE around 3 mph5 km/h. 74% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 69°F21°C. Light wind from the SSE around 3 mph5 km/h. 68% chance of light rain throughout the night.
Rain	High 76°F25°C	Low 70°F21°C	Precip 0.79 in20 mm93%	Cloud 86%	Wind NNE 3 mph5 km/h	Wednesday: Overcast and warm, with a high of 76°F25°C and morning low of 71°F21°C. Light wind from the N around 3 mph6 km/h. 93% chance of rain throughout the day. Heavy, humid air. Wednesday Night: Overcast, with a low around 70°F21°C. Light wind from the NE around 3 mph5 km/h. 89% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	73°F23°C	70°F21°C	1.34 in34 mm· 100%	100%	Rain	SSW 3 mph4 km/h
DayOvercast and warm, with a high of 73°F23°C. Light wind from the SW around 3 mph4 km/h. 100% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 70°F21°C. Light wind from the SSW around 3 mph4 km/h. 96% chance of rain throughout the night.
	FridaySep 4	71°F22°C	67°F19°C	0.33 in8.4 mm· 93%	100%	Light Rain	NNE 3 mph5 km/h
DayOvercast and warm, with a high of 71°F22°C. Light wind from the NNE around 3 mph5 km/h. 90% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the N around 3 mph5 km/h. 93% chance of light rain throughout the night.
	SaturdaySep 5	75°F24°C	64°F18°C	0.08 in2.1 mm· 37%	83%	Light Rain	NE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 64°F18°C. Light wind from the NE around 4 mph7 km/h. 37% chance of light rain in the morning. NightOvercast, with a low around 65°F18°C. Light wind from the ENE around 3 mph5 km/h. 31% chance of light rain overnight.
	SundaySep 6	76°F24°C	65°F19°C	0.14 in3.6 mm· 42%	91%	Light Rain	SSE 7 mph11 km/h
DayOvercast and warm, with a high of 76°F24°C and morning low of 65°F19°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 27% chance of light rain throughout the day. NightOvercast, with a low around 66°F19°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 42% chance of light rain in the evening.
	MondaySep 7	73°F23°C	67°F19°C	1.11 in28.2 mm· 85%	93%	Rain	SSE 5 mph7 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 67°F19°C. Light wind from the SSE around 4 mph7 km/h. 85% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Breezy from the SSE at 5 to 7 mph8 to 12 km/h. 73% chance of rain throughout the night.
	TuesdaySep 8	79°F26°C	69°F21°C	0.58 in14.7 mm· 74%	80%	Light Rain	SSE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Light wind from the NE around 3 mph5 km/h. 74% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 69°F21°C. Light wind from the SSE around 3 mph5 km/h. 68% chance of light rain throughout the night.
	WednesdaySep 9	76°F25°C	70°F21°C	0.79 in20 mm· 93%	86%	Rain	NNE 3 mph5 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 71°F21°C. Light wind from the N around 3 mph6 km/h. 93% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 70°F21°C. Light wind from the NE around 3 mph5 km/h. 89% chance of rain throughout the night.
	ThursdaySep 10	71°F22°C	67°F19°C	0.89 in22.6 mm· 86%	91%	Rain	NNE 4 mph6 km/h
DayOvercast and warm, with a high of 71°F22°C. Light wind from the NNE around 4 mph6 km/h. 86% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the NNE around 3 mph5 km/h. 81% chance of rain throughout the night.
	FridaySep 11	72°F22°C	65°F19°C	0.43 in10.8 mm· 70%	85%	Light Rain	NE 3 mph5 km/h
DayOvercast and warm, with a high of 72°F22°C and morning low of 65°F19°C. Light wind from the NNE around 4 mph6 km/h. 70% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NE around 3 mph5 km/h. 59% chance of light rain throughout the night.
	SaturdaySep 12	73°F23°C	66°F19°C	0.38 in9.7 mm· 66%	84%	Light Rain	ENE 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 ENE around 3 mph5 km/h. 66% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the E around 3 mph4 km/h. 57% chance of light rain throughout the night.
	SundaySep 13	74°F23°C	66°F19°C	0.4 in10.1 mm· 75%	84%	Light Rain	NE 3 mph5 km/h
DayOvercast and warm, with a high of 74°F23°C and morning low of 66°F19°C. Light wind from the NNE around 3 mph5 km/h. 71% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the E around 3 mph4 km/h. 75% chance of light rain throughout the night.
	MondaySep 14	73°F23°C	66°F19°C	0.53 in13.4 mm· 73%	81%	Rain	NE 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 NNE around 3 mph6 km/h. 73% 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. 61% chance of light rain throughout the night.
	TuesdaySep 15	73°F23°C	65°F18°C	0.45 in11.5 mm· 70%	84%	Light Rain	ENE 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 NNE around 3 mph5 km/h. 70% chance of light rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the E around 3 mph4 km/h. 58% chance of light rain throughout the night.
	WednesdaySep 16	73°F23°C	65°F18°C	0.48 in12.2 mm· 63%	82%	Light Rain	ESE 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 ENE around 3 mph5 km/h. 63% chance of light rain throughout the day. NightOvercast, with a low around 65°F18°C. Light wind from the SE around 3 mph4 km/h. 54% chance of light rain throughout the night.
	ThursdaySep 17	75°F24°C	65°F18°C	0.43 in10.8 mm· 72%	80%	Light Rain	SE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 65°F18°C. Light wind from the E 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 SSE around 3 mph5 km/h. 56% chance of light rain throughout the night.

Nearby Cities

Myoko2 mi4 km Jōetsu10 mi16 km Iiyama13 mi21 km Nakano19 mi31 km Itoigawa21 mi34 km Nagano24 mi39 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: 37.0006°N, 138.2259°E·Elevation: 175m·Timezone: Asia/Tokyo·Population: 27,481