Current Conditions

Arai, Niigata

83°F28°C

Rain

Feels like89°F32°C

Wind

NW 6 mph10 km/h

Humidity

73%

Cloud Cover

48%

As of Friday, July 24, 2026 at 1:38 PM GMT+9

Today's Outlook

Day

Partly cloudy and warm, with a high of 84°F29°C — feels like 90°F32°C. Light wind from the NW around 5 mph8 km/h. 78% chance of showers throughout the day. Heavy, humid air.

Night

Mostly cloudy, with a low around 76°F24°C. Light wind from the WNW around 3 mph4 km/h. 92% chance of rain throughout the night.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
FridayJul 24	Rain	High 84°F29°CFeels 90°F32°C	Low 76°F24°C	Precip 0.24 in6.1 mm92%	Cloud 54%	Wind NW 4 mph6 km/h	Friday: Partly cloudy and warm, with a high of 84°F29°C — feels like 90°F32°C. Light wind from the NW around 5 mph8 km/h. 78% chance of showers throughout the day. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the WNW around 3 mph4 km/h. 92% chance of rain throughout the night.
SaturdayJul 25	Showers	High 81°F27°CFeels 85°F30°C	Low 73°F23°C	Precip 0.2 in5.2 mm94%	Cloud 49%	Wind NW 4 mph6 km/h	Saturday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the NW at 5 to 7 mph8 to 11 km/h. 94% chance of showers throughout the day. Heavy, humid air. Saturday Night: Partly cloudy, with a low around 73°F23°C. Light wind from the W around 2 mph4 km/h. 79% chance of showers throughout the night.
SundayJul 26	Rain	High 77°F25°C	Low 72°F22°C	Precip 0.78 in19.7 mm100%	Cloud 90%	Wind WSW 3 mph4 km/h	Sunday: Overcast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Light wind from the WNW around 3 mph4 km/h. 100% chance of rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 72°F22°C. Light wind from the SSW around 2 mph4 km/h. 98% chance of rain throughout the night.
MondayJul 27	Rain	High 79°F26°C	Low 71°F21°C	Precip 0.5 in12.8 mm98%	Cloud 83%	Wind WNW 3 mph4 km/h	Monday: Overcast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the NW around 3 mph5 km/h. 98% chance of rain throughout the day. Heavy, humid air. Monday Night: Overcast, with a low around 71°F21°C. Light wind from the SW around 2 mph3 km/h. 90% chance of light rain throughout the night.
TuesdayJul 28	Rain	High 79°F26°C	Low 70°F21°C	Precip 0.64 in16.3 mm99%	Cloud 83%	Wind SSW 3 mph4 km/h	Tuesday: Overcast and warm, with a high of 79°F26°C and morning low of 71°F21°C. Light wind from the W around 3 mph4 km/h. 98% chance of rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 70°F21°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.
WednesdayJul 29	Light Rain	High 81°F27°C	Low 71°F21°C	Precip 0.31 in7.9 mm81%	Cloud 75%	Wind W 3 mph5 km/h	Wednesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 71°F22°C. Light wind from the WNW around 4 mph6 km/h. 81% chance of light rain throughout the day. Heavy, humid air. Wednesday Night: Mostly cloudy, with a low around 71°F21°C. Light wind from the SW around 3 mph4 km/h. 60% chance of light rain throughout the night.
ThursdayJul 30	Light Rain	High 83°F28°CFeels 88°F31°C	Low 72°F22°C	Precip 0.2 in5.2 mm46%	Cloud 78%	Wind WSW 3 mph5 km/h	Thursday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 72°F22°C. Light wind from the W around 4 mph6 km/h. 46% chance of light rain throughout the day. Heavy, humid air. Thursday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the SW around 3 mph4 km/h. 34% chance of light rain throughout the night.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	FridayJul 24	84°F29°C Feels 90°F32°C	76°F24°C	0.24 in6.1 mm· 92%	54%	Rain	NW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 84°F29°C — feels like 90°F32°C. Light wind from the NW around 5 mph8 km/h. 78% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Light wind from the WNW around 3 mph4 km/h. 92% chance of rain throughout the night.
	SaturdayJul 25	81°F27°C Feels 85°F30°C	73°F23°C	0.2 in5.2 mm· 94%	49%	Showers	NW 4 mph6 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the NW at 5 to 7 mph8 to 11 km/h. 94% chance of showers throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 73°F23°C. Light wind from the W around 2 mph4 km/h. 79% chance of showers throughout the night.
	SundayJul 26	77°F25°C	72°F22°C	0.78 in19.7 mm· 100%	90%	Rain	WSW 3 mph4 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Light wind from the WNW around 3 mph4 km/h. 100% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the SSW around 2 mph4 km/h. 98% chance of rain throughout the night.
	MondayJul 27	79°F26°C	71°F21°C	0.5 in12.8 mm· 98%	83%	Rain	WNW 3 mph4 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the NW around 3 mph5 km/h. 98% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 71°F21°C. Light wind from the SW around 2 mph3 km/h. 90% chance of light rain throughout the night.
	TuesdayJul 28	79°F26°C	70°F21°C	0.64 in16.3 mm· 99%	83%	Rain	SSW 3 mph4 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 71°F21°C. Light wind from the W around 3 mph4 km/h. 98% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 70°F21°C. Light wind from the S around 2 mph4 km/h. 99% chance of rain throughout the night.
	WednesdayJul 29	81°F27°C	71°F21°C	0.31 in7.9 mm· 81%	75%	Light Rain	W 3 mph5 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 71°F22°C. Light wind from the WNW around 4 mph6 km/h. 81% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 71°F21°C. Light wind from the SW around 3 mph4 km/h. 60% chance of light rain throughout the night.
	ThursdayJul 30	83°F28°C Feels 88°F31°C	72°F22°C	0.2 in5.2 mm· 46%	78%	Light Rain	WSW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 72°F22°C. Light wind from the W around 4 mph6 km/h. 46% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 72°F22°C. Light wind from the SW around 3 mph4 km/h. 34% chance of light rain throughout the night.
	FridayJul 31	84°F29°C Feels 91°F33°C	73°F23°C	0.11 in2.7 mm· 33%	74%	Light Rain	WNW 3 mph5 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 73°F23°C — feels like 91°F33°C. Light wind from the NW around 4 mph6 km/h. 33% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 73°F23°C. Light wind from the SW around 2 mph4 km/h. 23% chance of drizzle throughout the night.
	SaturdayAug 1	86°F30°C Feels 93°F34°C	73°F23°C	0.04 in1.1 mm· 27%	68%	Drizzle	NW 3 mph5 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 73°F23°C — feels like 93°F34°C. Light wind from the NNW around 3 mph5 km/h. 27% chance of drizzle around midday. Heavy, humid air. NightMostly cloudy, with a low around 73°F23°C. Light wind from the SSE around 2 mph4 km/h. 14% chance of drizzle throughout the night.
	SundayAug 2	87°F31°C Feels 95°F35°C	74°F24°C	0.04 in1 mm· 37%	47%	Drizzle	NNW 3 mph5 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 74°F24°C — feels like 95°F35°C. Light wind from the NNW around 3 mph5 km/h. 37% chance of drizzle around midday. Heat risk in the afternoon. NightMostly cloudy, with a low around 74°F24°C. Light wind from the SSE around 2 mph4 km/h. 21% chance of drizzle in the evening.
	MondayAug 3	87°F31°C Feels 96°F35°C	75°F24°C	0.06 in1.6 mm· 47%	48%	Showers	NNE 3 mph5 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 75°F24°C — feels like 95°F35°C. Light wind from the N around 3 mph5 km/h. 47% chance of showers around midday. Heat risk in the afternoon. NightMostly cloudy, with a low around 75°F24°C. Light wind from the SSE around 2 mph4 km/h. 26% chance of drizzle in the evening.
	TuesdayAug 4	87°F31°C Feels 96°F35°C	75°F24°C	0.07 in1.8 mm· 46%	51%	Showers	ENE 3 mph5 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 75°F24°C — feels like 95°F35°C. Light wind from the N around 3 mph6 km/h. 46% chance of showers around midday. Heat risk in the afternoon. NightMostly cloudy, with a low around 75°F24°C. Light wind from the SSE around 2 mph4 km/h. 31% chance of drizzle in the evening.
	WednesdayAug 5	87°F30°C Feels 95°F35°C	75°F24°C	0.12 in3 mm· 50%	52%	Showers	ESE 3 mph6 km/h
DayPartly cloudy and hot, with a high of 87°F30°C and morning low of 75°F24°C — feels like 95°F35°C. Light wind from the NE around 4 mph6 km/h. 50% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Light wind from the SSE around 3 mph5 km/h. 33% chance of showers in the evening.
	ThursdayAug 6	87°F30°C Feels 94°F34°C	75°F24°C	0.19 in4.7 mm· 41%	55%	Showers	SSE 4 mph7 km/h
DayMostly cloudy and hot, with a high of 87°F30°C and morning low of 75°F24°C — feels like 93°F34°C. Light wind from the SE around 5 mph7 km/h. 41% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Light wind from the SSE around 4 mph6 km/h. 28% chance of showers throughout the night.
	FridayAug 7	87°F30°C Feels 94°F34°C	75°F24°C	0.2 in5 mm· 39%	61%	Showers	SSE 4 mph7 km/h
DayMostly cloudy and hot, with a high of 87°F30°C and morning low of 75°F24°C — feels like 93°F34°C. Light wind from the SSE around 5 mph8 km/h. 39% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Light wind from the SSE around 4 mph7 km/h. 29% chance of showers 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.

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: 37.0006°N, 138.2259°E·Elevation: 175m·Timezone: Asia/Tokyo·Population: 27,481