Current Conditions

Koshigaya, Saitama

80°F27°C

Heavy Rain

Wind

SSW 16 mph26 km/h

Humidity

90%

Cloud Cover

94%

As of Wednesday, September 9, 2026 at 1:47 AM GMT+9

Today's Outlook

Day

Overcast and hot, with a high of 87°F31°C and morning low of 81°F27°C — feels like 102°F39°C. Windy from the SSW at 13 to 16 mph22 to 25 km/h. 96% chance of rain throughout the day. Heat risk in the afternoon.

Night

Overcast, with a low around 72°F22°C. Windy from the S at 13 to 16 mph20 to 26 km/h. 100% chance of heavy rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Heavy Rain	High 87°F31°CFeels 101°F39°C	Low 72°F22°C	Precip 1.06 in27 mm100%	Cloud 89%	Wind SSW 13 mph21 km/h	Wednesday: Overcast and hot, with a high of 87°F31°C and morning low of 81°F27°C — feels like 102°F39°C. Windy from the SSW at 13 to 16 mph22 to 25 km/h. 96% chance of rain throughout the day. Heat risk in the afternoon. Wednesday Night: Overcast, with a low around 72°F22°C. Windy from the S at 13 to 16 mph20 to 26 km/h. 100% chance of heavy rain throughout the night.
Rain	High 72°F22°C	Low 69°F20°C	Precip 0.45 in11.5 mm95%	Cloud 97%	Wind NE 6 mph10 km/h	Thursday: Overcast and warm, with a high of 72°F22°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 55% chance of light rain throughout the day. Thursday Night: Overcast, with a low around 69°F20°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 95% chance of rain throughout the night.
Rain	High 73°F23°C	Low 67°F19°C	Precip 1.13 in28.6 mm90%	Cloud 91%	Wind NNE 5 mph8 km/h	Friday: Overcast and warm, with a high of 73°F23°C and morning low of 67°F19°C. Light wind from the N around 6 mph9 km/h. 89% chance of rain throughout the day. Humid. Friday Night: Overcast, with a low around 67°F20°C. Light wind from the NNE around 5 mph8 km/h. 90% chance of rain throughout the night.
Drizzle	High 78°F26°C	Low 70°F21°C	Precip 0.09 in2.3 mm18%	Cloud 77%	Wind NE 5 mph8 km/h	Saturday: Overcast 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. 18% chance of drizzle throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the NE around 5 mph7 km/h. 18% chance of drizzle throughout the night.
Drizzle	High 79°F26°C	Low 71°F22°C	Precip 0.07 in1.8 mm32%	Cloud 83%	Wind NE 5 mph7 km/h	Sunday: Overcast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the NE around 5 mph8 km/h. 32% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the NE around 4 mph7 km/h. 16% chance of drizzle throughout the night.
Drizzle	High 85°F30°CFeels 93°F34°C	Low 74°F23°C	Precip 0.05 in1.2 mm24%	Cloud 63%	Wind S 6 mph10 km/h	Monday: Mostly cloudy and warm, with a high of 85°F30°C and morning low of 74°F23°C — feels like 93°F34°C. Breezy from the SSW at 7 to 10 mph11 to 16 km/h. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 74°F24°C. Breezy from the S at 5 to 8 mph8 to 12 km/h. 24% chance of drizzle in the evening.
Light Rain	High 80°F27°C	Low 74°F24°C	Precip 0.44 in11.1 mm76%	Cloud 93%	Wind E 6 mph10 km/h	Tuesday: Overcast and warm, with a high of 80°F27°C and morning low of 76°F24°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 69% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 74°F24°C. Breezy from the ESE at 6 to 7 mph9 to 11 km/h. 76% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	87°F31°C Feels 101°F39°C	72°F22°C	1.06 in27 mm· 100%	89%	Heavy Rain	SSW 13 mph21 km/h
DayOvercast and hot, with a high of 87°F31°C and morning low of 81°F27°C — feels like 102°F39°C. Windy from the SSW at 13 to 16 mph22 to 25 km/h. 96% chance of rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 72°F22°C. Windy from the S at 13 to 16 mph20 to 26 km/h. 100% chance of heavy rain throughout the night.
	ThursdaySep 10	72°F22°C	69°F20°C	0.45 in11.5 mm· 95%	97%	Rain	NE 6 mph10 km/h
DayOvercast and warm, with a high of 72°F22°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 55% chance of light rain throughout the day. NightOvercast, with a low around 69°F20°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 95% chance of rain throughout the night.
	FridaySep 11	73°F23°C	67°F19°C	1.13 in28.6 mm· 90%	91%	Rain	NNE 5 mph8 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 67°F19°C. Light wind from the N around 6 mph9 km/h. 89% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F20°C. Light wind from the NNE around 5 mph8 km/h. 90% chance of rain throughout the night.
	SaturdaySep 12	78°F26°C	70°F21°C	0.09 in2.3 mm· 18%	77%	Drizzle	NE 5 mph8 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. 18% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Light wind from the NE around 5 mph7 km/h. 18% chance of drizzle throughout the night.
	SundaySep 13	79°F26°C	71°F22°C	0.07 in1.8 mm· 32%	83%	Drizzle	NE 5 mph7 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the NE around 5 mph8 km/h. 32% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the NE around 4 mph7 km/h. 16% chance of drizzle throughout the night.
	MondaySep 14	85°F30°C Feels 93°F34°C	74°F23°C	0.05 in1.2 mm· 24%	63%	Drizzle	S 6 mph10 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 74°F23°C — feels like 93°F34°C. Breezy from the SSW at 7 to 10 mph11 to 16 km/h. Heavy, humid air. NightMostly cloudy, with a low around 74°F24°C. Breezy from the S at 5 to 8 mph8 to 12 km/h. 24% chance of drizzle in the evening.
	TuesdaySep 15	80°F27°C	74°F24°C	0.44 in11.1 mm· 76%	93%	Light Rain	E 6 mph10 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 76°F24°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 69% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 74°F24°C. Breezy from the ESE at 6 to 7 mph9 to 11 km/h. 76% chance of light rain throughout the night.
	WednesdaySep 16	76°F25°C	73°F23°C	0.61 in15.4 mm· 74%	97%	Light Rain	NE 6 mph10 km/h
DayOvercast and warm, with a high of 76°F25°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. 74% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 72% chance of light rain throughout the night.
	ThursdaySep 17	76°F25°C	71°F22°C	0.5 in12.8 mm· 67%	91%	Light Rain	NNE 7 mph11 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 71°F22°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 67% chance of light rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. 60% chance of light rain throughout the night.
	FridaySep 18	75°F24°C	70°F21°C	0.47 in11.9 mm· 55%	89%	Light Rain	NNE 8 mph13 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 70°F21°C. Breezy from the NNE at 8 to 9 mph14 to 15 km/h. 55% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h. 53% chance of light rain throughout the night.
	SaturdaySep 19	75°F24°C	70°F21°C	0.56 in14.3 mm· 60%	87%	Light Rain	NNE 8 mph14 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 70°F21°C. Breezy from the NNE at 9 to 10 mph14 to 15 km/h. 60% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. 57% chance of light rain throughout the night.
	SundaySep 20	77°F25°C	71°F21°C	0.76 in19.4 mm· 59%	82%	Rain	NE 10 mph15 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 71°F21°C. Breezy from the NE at 10 to 11 mph16 to 17 km/h. 59% chance of rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Breezy from the NE at 9 to 10 mph15 to 16 km/h. 55% chance of light rain throughout the night.
	MondaySep 21	78°F26°C	71°F22°C	0.67 in17.1 mm· 50%	76%	Rain	ENE 10 mph15 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 71°F22°C. Breezy from the ENE at 10 to 11 mph16 to 18 km/h. 49% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the E at 9 to 10 mph14 to 16 km/h. 50% chance of light rain throughout the night.
	TuesdaySep 22	79°F26°C	71°F22°C	0.43 in11 mm· 39%	68%	Showers	ESE 9 mph14 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 71°F22°C. Breezy from the SE at 9 to 10 mph15 to 16 km/h. 35% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the ESE at 9 mph14 km/h. 39% chance of showers throughout the night.
	WednesdaySep 23	80°F27°C	70°F21°C	0.4 in10.2 mm· 33%	62%	Showers	E 8 mph13 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 31% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the E at 8 mph12 km/h. 33% chance of showers throughout the night.

Nearby Cities

Matsubushi2 mi4 km Yoshikawa3 mi5 km Sōka4 mi6 km Hatogaya-honchō5 mi8 km Yashio5 mi9 km Toneri6 mi9 km

About This Forecast

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Coordinates: 35.8903°N, 139.7892°E·Elevation: 7m·Timezone: Asia/Tokyo·Population: 345,353