Current Conditions

Itoigawa, Niigata

76°F24°C
Rain

Wind

SSW 3 mph4 km/h

Humidity

87%

Cloud Cover

98%

As of Thursday, September 3, 2026 at 2:32 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 74°F23°C. Light wind from the W around 3 mph5 km/h. 100% chance of rain throughout the day. Heavy, humid air.

Night

Overcast, with a low around 71°F22°C. Light wind from the WSW around 3 mph5 km/h. 99% chance of rain throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 77°F25°CLow 71°F22°CPrecip 1.37 in34.8 mm100%Cloud 99%Wind WSW 3 mph5 km/hThursday: Overcast and warm, with a high of 74°F23°C. Light wind from the W around 3 mph5 km/h. 100% chance of rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 71°F22°C. Light wind from the WSW around 3 mph5 km/h. 99% chance of rain throughout the night.
RainHigh 71°F22°CLow 68°F20°CPrecip 0.39 in10 mm98%Cloud 100%Wind NNE 5 mph8 km/hFriday: Overcast and warm, with a high of 71°F22°C. Light wind from the NNE around 5 mph8 km/h. 96% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 68°F20°C. Light wind from the NNE around 5 mph8 km/h. 98% chance of rain throughout the night.
RainHigh 74°F23°CLow 66°F19°CPrecip 0.21 in5.4 mm63%Cloud 79%Wind ENE 7 mph11 km/hSaturday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 66°F19°C. Breezy from the ENE at 7 to 9 mph12 to 14 km/h. 30% chance of light rain throughout the day. Saturday Night: Overcast, with a low around 66°F19°C. Breezy from the ENE at 6 to 8 mph10 to 12 km/h. 63% chance of rain overnight.
Light RainHigh 77°F25°CLow 68°F20°CPrecip 0.14 in3.5 mm45%Cloud 87%Wind SE 6 mph10 km/hSunday: Overcast and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 22% chance of drizzle throughout the day. Sunday Night: Overcast, with a low around 68°F20°C. Breezy from the SE at 6 to 8 mph10 to 12 km/h. 45% chance of light rain in the evening.
RainHigh 74°F23°CLow 69°F21°CPrecip 0.98 in24.8 mm78%Cloud 90%Wind SE 5 mph9 km/hMonday: Overcast and warm, with a high of 74°F23°C. Light wind from the ESE around 5 mph9 km/h. 78% chance of rain throughout the day. Humid. Monday Night: Overcast, with a low around 70°F21°C. Breezy from the SE at 5 to 7 mph9 to 12 km/h. 69% chance of rain throughout the night.
Light RainHigh 77°F25°CLow 71°F22°CPrecip 0.52 in13.1 mm67%Cloud 77%Wind NE 4 mph6 km/hTuesday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 71°F22°C. Light wind from the NNE around 4 mph6 km/h. 67% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 71°F22°C. Light wind from the ENE around 3 mph6 km/h. 67% chance of light rain throughout the night.
RainHigh 75°F24°CLow 71°F21°CPrecip 0.9 in22.9 mm96%Cloud 87%Wind NNE 4 mph7 km/hWednesday: Overcast and warm, with a high of 75°F24°C. Light wind from the NNE around 4 mph7 km/h. 93% chance of rain throughout the day. Heavy, humid air. Wednesday Night: Overcast, with a low around 71°F21°C. Light wind from the NE around 4 mph6 km/h. 96% chance of rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 377°F25°C71°F22°C1.37 in34.8 mm· 100%99%RainWSW 3 mph5 km/h
FridaySep 471°F22°C68°F20°C0.39 in10 mm· 98%100%RainNNE 5 mph8 km/h
SaturdaySep 574°F23°C66°F19°C0.21 in5.4 mm· 63%79%RainENE 7 mph11 km/h
SundaySep 677°F25°C68°F20°C0.14 in3.5 mm· 45%87%Light RainSE 6 mph10 km/h
MondaySep 774°F23°C69°F21°C0.98 in24.8 mm· 78%90%RainSE 5 mph9 km/h
TuesdaySep 877°F25°C71°F22°C0.52 in13.1 mm· 67%77%Light RainNE 4 mph6 km/h
WednesdaySep 975°F24°C71°F21°C0.9 in22.9 mm· 96%87%RainNNE 4 mph7 km/h
ThursdaySep 1070°F21°C67°F20°C1.08 in27.5 mm· 88%90%RainNE 5 mph8 km/h
FridaySep 1171°F21°C66°F19°C0.61 in15.5 mm· 66%82%RainNE 5 mph8 km/h
SaturdaySep 1272°F22°C67°F19°C0.57 in14.6 mm· 69%82%Light RainNE 4 mph6 km/h
SundaySep 1373°F23°C68°F20°C0.55 in13.9 mm· 79%83%RainNE 4 mph6 km/h
MondaySep 1472°F22°C68°F20°C0.58 in14.8 mm· 72%83%Light RainNE 4 mph6 km/h
TuesdaySep 1572°F22°C67°F19°C0.57 in14.6 mm· 77%86%RainNE 4 mph6 km/h
WednesdaySep 1671°F22°C66°F19°C0.57 in14.4 mm· 76%85%Light RainENE 4 mph6 km/h
ThursdaySep 1772°F22°C66°F19°C0.54 in13.6 mm· 71%81%Light RainENE 4 mph6 km/h

Nearby Cities

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

PatternExampleDescription
/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=11.5Find 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: 37.0333°N, 137.8500°E·Elevation: 15m·Timezone: Asia/Tokyo·Population: 40,765