Current Conditions

Shonai, Yamagata

69°F21°C
Rain

Wind

NNW 8 mph13 km/h

Humidity

75%

Cloud Cover

99%

As of Wednesday, September 9, 2026 at 3:41 PM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 69°F21°C. Breezy from the NNW at 7 to 8 mph12 to 13 km/h. 98% chance of rain throughout the day.

Night

Overcast, with a low around 65°F18°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 69°F21°CLow 65°F18°CPrecip 0.31 in8 mm98%Cloud 98%Wind NNW 7 mph12 km/hWednesday: Overcast and warm, with a high of 69°F21°C. Breezy from the NNW at 7 to 8 mph12 to 13 km/h. 98% chance of rain throughout the day. Wednesday Night: Overcast, with a low around 65°F18°C. Breezy from the NNW at 7 to 8 mph11 to 13 km/h.
ClearHigh 74°F23°CLow 60°F16°CPrecip 0 in0 mmCloud 39%Wind ENE 4 mph6 km/hThursday: Partly cloudy and warm, with a high of 74°F23°C and morning low of 60°F16°C. Light wind from the ENE around 3 mph5 km/h. Thursday Night: Partly cloudy, with a low around 60°F16°C. Light wind from the NE around 5 mph7 km/h.
Light RainHigh 72°F22°CLow 64°F18°CPrecip 0.07 in1.7 mm35%Cloud 76%Wind ESE 4 mph6 km/hFriday: Overcast and warm, with a high of 72°F22°C and morning low of 64°F18°C. Light wind from the SE around 3 mph5 km/h. 35% chance of light rain throughout the day. Friday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the E around 4 mph6 km/h. 15% chance of drizzle overnight.
Partly CloudyHigh 77°F25°CLow 63°F17°CPrecip 0 in0.1 mm2%Cloud 62%Wind NE 3 mph6 km/hSaturday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 63°F17°C. Light wind from the NE around 3 mph5 km/h. Saturday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the ENE around 4 mph6 km/h.
ShowersHigh 79°F26°CLow 65°F18°CPrecip 0.09 in2.2 mm28%Cloud 59%Wind SE 6 mph10 km/hSunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 65°F18°C. Breezy from the SE at 6 to 7 mph10 to 12 km/h. 28% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 65°F19°C. Breezy from the ESE at 6 to 7 mph9 to 11 km/h. 27% chance of showers in the evening.
RainHigh 74°F23°CLow 70°F21°CPrecip 0.94 in23.9 mm93%Cloud 87%Wind SSW 5 mph8 km/hMonday: Overcast and warm, with a high of 74°F23°C. Light wind from the SW around 6 mph9 km/h. 93% chance of rain throughout the day. Humid. Monday Night: Overcast, with a low around 71°F22°C. Light wind from the S around 5 mph7 km/h. 74% chance of light rain throughout the night.
RainHigh 70°F21°CLow 67°F20°CPrecip 0.65 in16.5 mm82%Cloud 97%Wind NE 3 mph5 km/hTuesday: Overcast and warm, with a high of 70°F21°C. Light wind from the NE around 3 mph5 km/h. 82% chance of rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 67°F20°C. Light wind from the NE around 3 mph5 km/h. 72% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 969°F21°C65°F18°C0.31 in8 mm· 98%98%RainNNW 7 mph12 km/h
ThursdaySep 1074°F23°C60°F16°C0 in0 mm· —39%ClearENE 4 mph6 km/h
FridaySep 1172°F22°C64°F18°C0.07 in1.7 mm· 35%76%Light RainESE 4 mph6 km/h
SaturdaySep 1277°F25°C63°F17°C0 in0.1 mm· 2%62%Partly CloudyNE 3 mph6 km/h
SundaySep 1379°F26°C65°F18°C0.09 in2.2 mm· 28%59%ShowersSE 6 mph10 km/h
MondaySep 1474°F23°C70°F21°C0.94 in23.9 mm· 93%87%RainSSW 5 mph8 km/h
TuesdaySep 1570°F21°C67°F20°C0.65 in16.5 mm· 82%97%RainNE 3 mph5 km/h
WednesdaySep 1671°F22°C65°F18°C0.5 in12.7 mm· 71%96%Light RainE 4 mph6 km/h
ThursdaySep 1773°F23°C65°F18°C0.23 in5.9 mm· 36%91%Light RainE 5 mph8 km/h
FridaySep 1872°F22°C65°F18°C0.29 in7.4 mm· 46%87%Light RainESE 6 mph9 km/h
SaturdaySep 1973°F23°C65°F18°C0.31 in8 mm· 40%80%Light RainE 6 mph10 km/h
SundaySep 2073°F23°C66°F19°C0.45 in11.4 mm· 41%83%Light RainESE 8 mph13 km/h
MondaySep 2173°F23°C66°F19°C0.46 in11.6 mm· 45%78%Light RainESE 9 mph14 km/h
TuesdaySep 2272°F22°C65°F18°C0.37 in9.5 mm· 44%72%Light RainSSE 8 mph13 km/h
WednesdaySep 2373°F23°C64°F18°C0.24 in6.1 mm· 38%65%ShowersWSW 7 mph11 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: 38.8485°N, 139.9031°E·Elevation: 7m·Timezone: Asia/Tokyo·Population: 20,940