Current Conditions

Iwai, Ibaraki

86°F30°C

Drizzle

Feels like94°F35°C

Wind

SSW 4 mph6 km/h

Humidity

66%

Cloud Cover

72%

As of Wednesday, September 2, 2026 at 1:28 PM GMT+9

Today's Outlook

Day

Mostly cloudy and hot, with a high of 88°F31°C and morning low of 81°F27°C — feels like 97°F36°C. Light wind from the S around 4 mph7 km/h. 42% chance of drizzle throughout the day. Heat risk in the afternoon.

Night

Overcast, with a low around 81°F27°C. Light wind from the S around 6 mph9 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 88°F31°CFeels 97°F36°C	Low 81°F27°CFeels 86°F30°C	Precip 0.02 in0.6 mm42%	Cloud 73%	Wind S 5 mph8 km/h	Wednesday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 81°F27°C — feels like 97°F36°C. Light wind from the S around 4 mph7 km/h. 42% chance of drizzle throughout the day. Heat risk in the afternoon. Wednesday Night: Overcast, with a low around 81°F27°C. Light wind from the S around 6 mph9 km/h.
Rain	High 85°F30°CFeels 95°F35°C	Low 74°F24°C	Precip 0.46 in11.6 mm97%	Cloud 99%	Wind SSE 4 mph7 km/h	Thursday: Overcast and warm, with a high of 85°F30°C and morning low of 79°F26°C — feels like 95°F35°C. Light wind from the SSW around 4 mph6 km/h. 79% chance of light rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 74°F24°C. Light wind from the SE around 4 mph7 km/h. 97% chance of rain in the evening.
Light Rain	High 80°F27°C	Low 73°F23°C	Precip 0.34 in8.7 mm63%	Cloud 99%	Wind ENE 3 mph5 km/h	Friday: Overcast and warm, with a high of 80°F27°C and morning low of 73°F23°C. Light wind from the ENE around 3 mph5 km/h. 61% chance of light rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 73°F23°C. Light wind from the ENE around 3 mph5 km/h. 63% chance of light rain throughout the night.
Rain	High 76°F25°C	Low 71°F22°C	Precip 0.62 in15.7 mm79%	Cloud 97%	Wind NE 6 mph10 km/h	Saturday: Overcast and warm, with a high of 76°F25°C and morning low of 71°F22°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. 79% chance of rain throughout the day. Humid. Saturday Night: Overcast, with a low around 72°F22°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 79% chance of rain throughout the night.
Rain	High 75°F24°C	Low 71°F22°C	Precip 0.93 in23.5 mm78%	Cloud 97%	Wind NNE 11 mph17 km/h	Sunday: Overcast and warm, with a high of 75°F24°C. Breezy from the NE at 11 to 12 mph18 to 19 km/h. 68% chance of rain throughout the day. Humid. Sunday Night: Overcast, with a low around 71°F22°C. Breezy from the NNE at 10 to 12 mph16 to 19 km/h. 78% chance of rain throughout the night.
Rain	High 77°F25°C	Low 72°F22°C	Precip 1.65 in41.9 mm85%	Cloud 92%	Wind NNE 10 mph17 km/h	Monday: Overcast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the NNE at 11 mph18 km/h. 83% chance of rain throughout the day. Heavy, humid air. Monday Night: Overcast, with a low around 72°F22°C. Breezy from the NNE at 10 to 12 mph16 to 19 km/h. 85% chance of rain throughout the night.
Light Rain	High 82°F28°CFeels 86°F30°C	Low 72°F22°C	Precip 0.29 in7.4 mm43%	Cloud 72%	Wind E 6 mph9 km/h	Tuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 72°F22°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. 37% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the E around 6 mph9 km/h. 43% chance of light rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	88°F31°C Feels 97°F36°C	81°F27°C Feels 86°F30°C	0.02 in0.6 mm· 42%	73%	Drizzle	S 5 mph8 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 81°F27°C — feels like 97°F36°C. Light wind from the S around 4 mph7 km/h. 42% chance of drizzle throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 81°F27°C. Light wind from the S around 6 mph9 km/h.
	ThursdaySep 3	85°F30°C Feels 95°F35°C	74°F24°C	0.46 in11.6 mm· 97%	99%	Rain	SSE 4 mph7 km/h
DayOvercast and warm, with a high of 85°F30°C and morning low of 79°F26°C — feels like 95°F35°C. Light wind from the SSW around 4 mph6 km/h. 79% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 74°F24°C. Light wind from the SE around 4 mph7 km/h. 97% chance of rain in the evening.
	FridaySep 4	80°F27°C	73°F23°C	0.34 in8.7 mm· 63%	99%	Light Rain	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 73°F23°C. Light wind from the ENE around 3 mph5 km/h. 61% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the ENE around 3 mph5 km/h. 63% chance of light rain throughout the night.
	SaturdaySep 5	76°F25°C	71°F22°C	0.62 in15.7 mm· 79%	97%	Rain	NE 6 mph10 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 71°F22°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. 79% chance of rain throughout the day. Humid. NightOvercast, with a low around 72°F22°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 79% chance of rain throughout the night.
	SundaySep 6	75°F24°C	71°F22°C	0.93 in23.5 mm· 78%	97%	Rain	NNE 11 mph17 km/h
DayOvercast and warm, with a high of 75°F24°C. Breezy from the NE at 11 to 12 mph18 to 19 km/h. 68% chance of rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Breezy from the NNE at 10 to 12 mph16 to 19 km/h. 78% chance of rain throughout the night.
	MondaySep 7	77°F25°C	72°F22°C	1.65 in41.9 mm· 85%	92%	Rain	NNE 10 mph17 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the NNE at 11 mph18 km/h. 83% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Breezy from the NNE at 10 to 12 mph16 to 19 km/h. 85% chance of rain throughout the night.
	TuesdaySep 8	82°F28°C Feels 86°F30°C	72°F22°C	0.29 in7.4 mm· 43%	72%	Light Rain	E 6 mph9 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 72°F22°C. Breezy from the ESE at 6 to 7 mph10 to 11 km/h. 37% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 73°F23°C. Light wind from the E around 6 mph9 km/h. 43% chance of light rain throughout the night.
	WednesdaySep 9	84°F29°C Feels 92°F33°C	74°F24°C	0.24 in6.1 mm· 41%	72%	Light Rain	S 6 mph9 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 74°F24°C — feels like 91°F33°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. 41% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F24°C. Breezy from the SSE at 6 to 7 mph9 to 12 km/h. 38% chance of showers throughout the night.
	ThursdaySep 10	82°F28°C Feels 87°F31°C	75°F24°C	0.37 in9.3 mm· 56%	80%	Light Rain	ESE 6 mph10 km/h
DayOvercast and warm, with a high of 82°F28°C and morning low of 76°F24°C — feels like 88°F31°C. Breezy from the ESE at 7 to 8 mph11 to 13 km/h. 54% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 75°F24°C. Light wind from the ESE around 6 mph10 km/h. 56% chance of light rain throughout the night.
	FridaySep 11	77°F25°C	72°F22°C	0.39 in9.9 mm· 69%	88%	Rain	ENE 6 mph9 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h. 52% chance of light rain throughout the day. Humid. NightOvercast, with a low around 73°F23°C. Light wind from the ENE around 5 mph9 km/h. 69% chance of rain throughout the night.
	SaturdaySep 12	79°F26°C	71°F22°C	0.19 in4.8 mm· 30%	83%	Light Rain	ENE 5 mph9 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the ENE around 6 mph9 km/h. 27% chance of light rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Light wind from the NE around 5 mph8 km/h. 30% chance of light rain throughout the night.
	SundaySep 13	80°F27°C	72°F22°C	0.22 in5.7 mm· 39%	79%	Light Rain	E 5 mph9 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the E at 6 to 7 mph9 to 11 km/h. 39% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the ENE around 5 mph8 km/h. 39% chance of light rain throughout the night.
	MondaySep 14	81°F27°C Feels 85°F29°C	73°F23°C	0.24 in6.2 mm· 42%	77%	Light Rain	E 5 mph8 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 73°F23°C. Light wind from the ESE around 5 mph8 km/h. 42% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 37% chance of light rain throughout the night.
	TuesdaySep 15	80°F27°C	72°F22°C	0.26 in6.5 mm· 44%	79%	Light Rain	E 5 mph8 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the E at 6 to 7 mph9 to 11 km/h. 44% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 39% chance of light rain throughout the night.
	WednesdaySep 16	80°F27°C	72°F22°C	0.25 in6.3 mm· 43%	80%	Light Rain	ENE 5 mph9 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the ENE at 6 to 7 mph9 to 12 km/h. 43% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the ENE around 5 mph8 km/h. 38% chance of light rain throughout the night.

Nearby Cities

Bandō2 mi4 km Jōsō4 mi6 km Mitsukaidō5 mi8 km Ishige6 mi10 km Sakai7 mi11 km Noda7 mi12 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: 36.0500°N, 139.9000°E·Elevation: 5m·Timezone: Asia/Tokyo·Population: 42,497