Current Conditions

Sayama, Saitama

76°F25°C

Light Rain

Wind

SW 2 mph3 km/h

Humidity

91%

Cloud Cover

99%

As of Thursday, September 3, 2026 at 5:15 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 83°F28°C and morning low of 76°F25°C — feels like 90°F32°C. Light wind from the NE around 3 mph5 km/h. 58% chance of light rain throughout the day. Heavy, humid air.

Night

Overcast, with a low around 75°F24°C. Light wind from the N around 3 mph5 km/h. 87% chance of light rain in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Light Rain	High 83°F28°CFeels 90°F32°C	Low 75°F24°C	Precip 0.22 in5.7 mm87%	Cloud 99%	Wind NNE 3 mph5 km/h	Thursday: Overcast and warm, with a high of 83°F28°C and morning low of 76°F25°C — feels like 90°F32°C. Light wind from the NE around 3 mph5 km/h. 58% chance of light rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 75°F24°C. Light wind from the N around 3 mph5 km/h. 87% chance of light rain in the evening.
Rain	High 78°F26°C	Low 72°F22°C	Precip 0.44 in11.2 mm94%	Cloud 99%	Wind NE 3 mph5 km/h	Friday: Overcast and warm, with a high of 78°F26°C and morning low of 73°F23°C. Light wind from the NE around 3 mph5 km/h. 86% chance of light rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 72°F22°C. Light wind from the NE around 3 mph4 km/h. 94% chance of rain throughout the night.
Rain	High 75°F24°C	Low 69°F20°C	Precip 0.75 in19 mm97%	Cloud 98%	Wind NE 4 mph7 km/h	Saturday: Overcast and warm, with a high of 75°F24°C and morning low of 69°F20°C. Light wind from the NE around 5 mph8 km/h. 91% chance of rain throughout the day. Humid. Saturday Night: Overcast, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 97% chance of rain throughout the night.
Rain	High 73°F23°C	Low 68°F20°C	Precip 1.09 in27.8 mm91%	Cloud 99%	Wind N 7 mph12 km/h	Sunday: Overcast and warm, with a high of 73°F23°C and morning low of 68°F20°C. Breezy from the NNE at 8 mph13 km/h. 86% chance of rain throughout the day. Humid. Sunday Night: Overcast, with a low around 69°F21°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 91% chance of rain throughout the night.
Heavy Rain	High 75°F24°C	Low 70°F21°C	Precip 2.94 in74.8 mm96%	Cloud 97%	Wind NNW 7 mph12 km/h	Monday: Overcast and warm, with a high of 75°F24°C and morning low of 70°F21°C. Breezy from the NNW at 7 to 9 mph12 to 14 km/h. 96% chance of heavy rain throughout the day. Humid. Monday Night: Overcast, with a low around 70°F21°C. Breezy from the NNW at 7 to 9 mph11 to 15 km/h. 95% chance of heavy rain throughout the night.
Rain	High 82°F28°CFeels 88°F31°C	Low 73°F23°C	Precip 0.52 in13.2 mm60%	Cloud 80%	Wind S 5 mph8 km/h	Tuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 73°F23°C — feels like 88°F31°C. Breezy from the SSE at 5 to 7 mph9 to 11 km/h. 55% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 73°F23°C. Light wind from the S around 5 mph7 km/h. 60% chance of rain throughout the night.
Light Rain	High 83°F29°CFeels 91°F33°C	Low 75°F24°C	Precip 0.41 in10.5 mm58%	Cloud 74%	Wind SSE 5 mph8 km/h	Wednesday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 75°F24°C — feels like 91°F33°C. Breezy from the SSE at 5 to 7 mph8 to 11 km/h. 58% chance of light rain throughout the day. Heavy, humid air. Wednesday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the S around 4 mph7 km/h. 56% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	83°F28°C Feels 90°F32°C	75°F24°C	0.22 in5.7 mm· 87%	99%	Light Rain	NNE 3 mph5 km/h
DayOvercast and warm, with a high of 83°F28°C and morning low of 76°F25°C — feels like 90°F32°C. Light wind from the NE around 3 mph5 km/h. 58% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 75°F24°C. Light wind from the N around 3 mph5 km/h. 87% chance of light rain in the evening.
	FridaySep 4	78°F26°C	72°F22°C	0.44 in11.2 mm· 94%	99%	Rain	NE 3 mph5 km/h
DayOvercast and warm, with a high of 78°F26°C and morning low of 73°F23°C. Light wind from the NE around 3 mph5 km/h. 86% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the NE around 3 mph4 km/h. 94% chance of rain throughout the night.
	SaturdaySep 5	75°F24°C	69°F20°C	0.75 in19 mm· 97%	98%	Rain	NE 4 mph7 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 69°F20°C. Light wind from the NE around 5 mph8 km/h. 91% chance of rain throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 97% chance of rain throughout the night.
	SundaySep 6	73°F23°C	68°F20°C	1.09 in27.8 mm· 91%	99%	Rain	N 7 mph12 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 68°F20°C. Breezy from the NNE at 8 mph13 km/h. 86% chance of rain throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Breezy from the N at 7 to 8 mph11 to 12 km/h. 91% chance of rain throughout the night.
	MondaySep 7	75°F24°C	70°F21°C	2.94 in74.8 mm· 96%	97%	Heavy Rain	NNW 7 mph12 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 70°F21°C. Breezy from the NNW at 7 to 9 mph12 to 14 km/h. 96% chance of heavy rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NNW at 7 to 9 mph11 to 15 km/h. 95% chance of heavy rain throughout the night.
	TuesdaySep 8	82°F28°C Feels 88°F31°C	73°F23°C	0.52 in13.2 mm· 60%	80%	Rain	S 5 mph8 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 73°F23°C — feels like 88°F31°C. Breezy from the SSE at 5 to 7 mph9 to 11 km/h. 55% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the S around 5 mph7 km/h. 60% chance of rain throughout the night.
	WednesdaySep 9	83°F29°C Feels 91°F33°C	75°F24°C	0.41 in10.5 mm· 58%	74%	Light Rain	SSE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 75°F24°C — feels like 91°F33°C. Breezy from the SSE at 5 to 7 mph8 to 11 km/h. 58% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Light wind from the S around 4 mph7 km/h. 56% chance of light rain throughout the night.
	ThursdaySep 10	79°F26°C	73°F23°C	0.61 in15.6 mm· 73%	84%	Rain	ENE 5 mph8 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 74°F23°C. Light wind from the ENE around 5 mph9 km/h. 73% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the ENE around 4 mph7 km/h. 71% chance of rain throughout the night.
	FridaySep 11	76°F24°C	71°F22°C	0.33 in8.5 mm· 67%	89%	Light Rain	NE 4 mph7 km/h
DayOvercast and warm, with a high of 76°F24°C. Light wind from the ENE around 5 mph8 km/h. 61% chance of light rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Light wind from the NE around 4 mph6 km/h. 67% chance of light rain throughout the night.
	SaturdaySep 12	76°F25°C	69°F21°C	0.25 in6.3 mm· 47%	86%	Light Rain	NE 4 mph7 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 69°F21°C. Light wind from the NE around 5 mph7 km/h. 43% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NE around 4 mph6 km/h. 47% chance of light rain throughout the night.
	SundaySep 13	78°F25°C	70°F21°C	0.23 in5.9 mm· 49%	82%	Light Rain	NE 4 mph7 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 70°F21°C. Light wind from the ENE around 5 mph7 km/h. 39% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NE around 4 mph6 km/h. 49% chance of light rain throughout the night.
	MondaySep 14	78°F25°C	70°F21°C	0.29 in7.4 mm· 48%	82%	Light Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 70°F21°C. Light wind from the ENE around 4 mph7 km/h. 48% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NE around 3 mph5 km/h. 48% chance of light rain throughout the night.
	TuesdaySep 15	78°F25°C	70°F21°C	0.38 in9.7 mm· 56%	84%	Light Rain	NE 4 mph6 km/h
DayOvercast and warm, with a high of 78°F25°C and morning low of 70°F21°C. Light wind from the NE around 5 mph7 km/h. 55% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NNE around 3 mph5 km/h. 56% chance of light rain throughout the night.
	WednesdaySep 16	78°F26°C	70°F21°C	0.41 in10.4 mm· 53%	82%	Light Rain	NE 4 mph7 km/h
DayOvercast and warm, with a high of 78°F26°C and morning low of 70°F21°C. Light wind from the NE around 5 mph7 km/h. 53% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NNE around 4 mph6 km/h. 52% chance of light rain throughout the night.
	ThursdaySep 17	78°F26°C	70°F21°C	0.35 in8.8 mm· 54%	82%	Light Rain	NNE 4 mph7 km/h
DayOvercast and warm, with a high of 78°F26°C and morning low of 70°F21°C. Light wind from the NE around 5 mph8 km/h. 54% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NNE around 4 mph6 km/h. 52% chance of light rain throughout the night.

Nearby Cities

Iruma3 mi6 km Tokorozawa5 mi8 km Hidaka5 mi8 km Hannō5 mi8 km Kawagoe6 mi9 km Kamifukuoka6 mi9 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: 35.8529°N, 139.4121°E·Elevation: 81m·Timezone: Asia/Tokyo·Population: 160,843