Current Conditions

Hannō, Saitama

69°F20°C
Light Rain

Wind

NE 4 mph6 km/h

Humidity

86%

Cloud Cover

96%

As of Wednesday, September 23, 2026 at 10:08 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 69°F21°C. Light wind from the ENE around 4 mph6 km/h. 83% chance of light rain throughout the day. Humid.

Night

Overcast, with a low around 68°F20°C. Light wind from the NNE around 3 mph4 km/h. 69% chance of light rain throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 69°F21°CLow 68°F20°CPrecip 0.15 in3.8 mm83%Cloud 96%Wind NE 3 mph5 km/hWednesday: Overcast and warm, with a high of 69°F21°C. Light wind from the ENE around 4 mph6 km/h. 83% chance of light rain throughout the day. Humid. Wednesday Night: Overcast, with a low around 68°F20°C. Light wind from the NNE around 3 mph4 km/h. 69% chance of light rain throughout the night.
DrizzleHigh 80°F26°CLow 66°F19°CPrecip 0.05 in1.3 mm31%Cloud 67%Wind N 3 mph5 km/hThursday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 66°F19°C. Light wind from the NNE around 3 mph5 km/h. 22% chance of drizzle around midday. Humid. Thursday Night: Overcast, with a low around 67°F19°C. Light wind from the NNW around 2 mph4 km/h. 31% chance of drizzle throughout the night.
RainHigh 73°F23°CLow 68°F20°CPrecip 0.48 in12.1 mm81%Cloud 92%Wind E 3 mph5 km/hFriday: Overcast and warm, with a high of 73°F23°C and morning low of 68°F20°C. Light wind from the E around 3 mph5 km/h. 81% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 69°F20°C. Light wind from the ENE around 3 mph4 km/h. 81% chance of rain throughout the night.
RainHigh 67°F19°CLow 63°F17°CPrecip 1.37 in34.8 mm99%Cloud 100%Wind NNE 3 mph5 km/hSaturday: Overcast and mild, with a high of 65°F18°C. Light wind from the NNE around 4 mph6 km/h. 99% chance of rain throughout the day. Saturday Night: Overcast, with a low around 63°F17°C. Light wind from the NNE around 3 mph5 km/h. 98% chance of rain throughout the night.
RainHigh 68°F20°CLow 63°F17°CPrecip 0.64 in16.3 mm75%Cloud 98%Wind NNW 3 mph4 km/hSunday: Overcast and mild, with a high of 68°F20°C and morning low of 63°F17°C. Light wind from the N around 3 mph5 km/h. 75% chance of rain throughout the day. Sunday Night: Overcast, with a low around 63°F17°C. Light wind from the NW around 3 mph4 km/h. 63% chance of light rain throughout the night.
Light RainHigh 73°F23°CLow 65°F18°CPrecip 0.36 in9.2 mm61%Cloud 94%Wind SSW 3 mph4 km/hMonday: Overcast and warm, with a high of 73°F23°C and morning low of 65°F18°C. Light wind from the SE around 3 mph4 km/h. 54% chance of light rain throughout the day. Humid. Monday Night: Overcast, with a low around 65°F18°C. Light wind from the W around 2 mph4 km/h. 61% chance of light rain throughout the night.
Light RainHigh 74°F23°CLow 67°F19°CPrecip 0.47 in12 mm60%Cloud 88%Wind WNW 3 mph5 km/hTuesday: Overcast and warm, with a high of 74°F23°C and morning low of 67°F19°C. Light wind from the E around 3 mph5 km/h. 54% chance of light rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 67°F20°C. Light wind from the W around 3 mph5 km/h. 60% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2369°F21°C68°F20°C0.15 in3.8 mm· 83%96%Light RainNE 3 mph5 km/h
ThursdaySep 2480°F26°C66°F19°C0.05 in1.3 mm· 31%67%DrizzleN 3 mph5 km/h
FridaySep 2573°F23°C68°F20°C0.48 in12.1 mm· 81%92%RainE 3 mph5 km/h
SaturdaySep 2667°F19°C63°F17°C1.37 in34.8 mm· 99%100%RainNNE 3 mph5 km/h
SundaySep 2768°F20°C63°F17°C0.64 in16.3 mm· 75%98%RainNNW 3 mph4 km/h
MondaySep 2873°F23°C65°F18°C0.36 in9.2 mm· 61%94%Light RainSSW 3 mph4 km/h
TuesdaySep 2974°F23°C67°F19°C0.47 in12 mm· 60%88%Light RainWNW 3 mph5 km/h
WednesdaySep 3075°F24°C66°F19°C0.41 in10.5 mm· 54%76%Light RainENE 3 mph5 km/h
ThursdayOct 173°F23°C66°F19°C0.63 in16.1 mm· 70%77%RainNNE 4 mph6 km/h
FridayOct 268°F20°C62°F17°C0.45 in11.4 mm· 71%79%Light RainNE 4 mph7 km/h
SaturdayOct 368°F20°C59°F15°C0.3 in7.5 mm· 35%72%Light RainNNE 4 mph6 km/h
SundayOct 471°F22°C59°F15°C0.19 in4.8 mm· 27%59%ShowersN 5 mph7 km/h
MondayOct 571°F22°C58°F15°C0.13 in3.4 mm· 18%48%ShowersN 5 mph8 km/h
TuesdayOct 670°F21°C59°F15°C0.14 in3.5 mm· 24%55%ShowersN 5 mph7 km/h
WednesdayOct 771°F21°C60°F15°C0.33 in8.4 mm· 27%55%ShowersN 5 mph7 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: 35.8519°N, 139.3181°E·Elevation: 113m·Timezone: Asia/Tokyo·Population: 80,361