Current Conditions

Isawa, Yamanashi

66°F19°C
Light Rain

Wind

E 3 mph4 km/h

Humidity

84%

Cloud Cover

79%

As of Tuesday, September 22, 2026 at 9:12 PM GMT+9

Today's Outlook

Night

Overcast, with a low around 62°F17°C. Light wind from the ESE around 2 mph4 km/h. 64% chance of light rain throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 65°F19°CLow 62°F17°CPrecip 0.22 in5.5 mm86%Cloud 95%Wind ESE 3 mph5 km/hWednesday: Overcast and mild, with a high of 65°F19°C. Light wind from the ESE around 3 mph5 km/h. 86% chance of light rain throughout the day. Wednesday Night: Overcast, with a low around 62°F17°C. Light wind from the ESE around 2 mph4 km/h. 64% chance of light rain throughout the night.
DrizzleHigh 75°F24°CLow 61°F16°CPrecip 0.06 in1.4 mm39%Cloud 74%Wind NW 2 mph3 km/hThursday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 61°F16°C. Light wind from the WNW around 2 mph3 km/h. 36% chance of drizzle around midday. Thursday Night: Overcast, with a low around 61°F16°C. Light wind from the ESE around 2 mph3 km/h. 39% chance of drizzle throughout the night.
Light RainHigh 68°F20°CLow 62°F17°CPrecip 0.41 in10.5 mm97%Cloud 94%Wind SSE 2 mph3 km/hFriday: Overcast and mild, with a high of 68°F20°C and morning low of 62°F17°C. Light wind from the SSE around 2 mph4 km/h. 97% chance of light rain throughout the day. Friday Night: Overcast, with a low around 62°F17°C. Light wind from the SE around 2 mph3 km/h. 85% chance of light rain throughout the night.
RainHigh 61°F16°CLow 58°F14°CPrecip 1.17 in29.8 mm98%Cloud 100%Wind ESE 2 mph3 km/hSaturday: Overcast and mild, with a high of 59°F15°C. Light wind from the E around 2 mph4 km/h. 98% chance of rain throughout the day. Saturday Night: Overcast, with a low around 58°F14°C. Light wind from the SE around 2 mph3 km/h. 97% chance of rain throughout the night.
RainHigh 65°F18°CLow 57°F14°CPrecip 0.62 in15.8 mm69%Cloud 98%Wind S 2 mph4 km/hSunday: Overcast and mild, with a high of 65°F18°C and morning low of 57°F14°C. Light wind from the S around 2 mph4 km/h. 65% chance of light rain throughout the day. Sunday Night: Overcast, with a low around 57°F14°C. Light wind from the SW around 2 mph3 km/h. 69% chance of rain throughout the night.
Light RainHigh 68°F20°CLow 59°F15°CPrecip 0.24 in6 mm50%Cloud 96%Wind WSW 3 mph4 km/hMonday: Overcast and warm, with a high of 68°F20°C and morning low of 59°F15°C. Light wind from the WSW around 3 mph5 km/h. 47% chance of light rain throughout the day. Monday Night: Overcast, with a low around 59°F15°C. Light wind from the W around 2 mph4 km/h. 50% chance of light rain throughout the night.
Light RainHigh 66°F19°CLow 59°F15°CPrecip 0.52 in13.2 mm69%Cloud 90%Wind SW 3 mph4 km/hTuesday: Overcast and mild, with a high of 66°F19°C and morning low of 59°F15°C. Light wind from the SSW around 3 mph4 km/h. 69% chance of light rain throughout the day. Tuesday Night: Overcast, with a low around 59°F15°C. Light wind from the WSW around 3 mph4 km/h. 64% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2365°F19°C62°F17°C0.22 in5.5 mm· 86%95%Light RainESE 3 mph5 km/h
ThursdaySep 2475°F24°C61°F16°C0.06 in1.4 mm· 39%74%DrizzleNW 2 mph3 km/h
FridaySep 2568°F20°C62°F17°C0.41 in10.5 mm· 97%94%Light RainSSE 2 mph3 km/h
SaturdaySep 2661°F16°C58°F14°C1.17 in29.8 mm· 98%100%RainESE 2 mph3 km/h
SundaySep 2765°F18°C57°F14°C0.62 in15.8 mm· 69%98%RainS 2 mph4 km/h
MondaySep 2868°F20°C59°F15°C0.24 in6 mm· 50%96%Light RainWSW 3 mph4 km/h
TuesdaySep 2966°F19°C59°F15°C0.52 in13.2 mm· 69%90%Light RainSW 3 mph4 km/h
WednesdaySep 3070°F21°C60°F15°C0.37 in9.4 mm· 60%78%Light RainSW 3 mph5 km/h
ThursdayOct 171°F21°C60°F16°C0.37 in9.5 mm· 44%66%ShowersWSW 3 mph5 km/h
FridayOct 265°F19°C55°F13°C0.3 in7.7 mm· 47%66%ShowersNNE 3 mph5 km/h
SaturdayOct 365°F18°C52°F11°C0.13 in3.4 mm· 29%69%ShowersSE 3 mph4 km/h
SundayOct 467°F19°C53°F12°C0.15 in3.7 mm· 28%67%ShowersS 3 mph4 km/h
MondayOct 566°F19°C54°F12°C0.14 in3.5 mm· 30%63%DrizzleNE 3 mph5 km/h
TuesdayOct 665°F19°C53°F12°C0.17 in4.3 mm· 34%63%ShowersNE 3 mph5 km/h
WednesdayOct 765°F18°C53°F12°C0.17 in4.2 mm· 33%63%ShowersNNE 3 mph5 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: 35.6500°N, 138.6333°E·Elevation: 269m·Timezone: Asia/Tokyo·Population: 29,616