Current Conditions

Iruma, Saitama

73°F23°C
Rain

Wind

N 5 mph8 km/h

Humidity

95%

Cloud Cover

99%

As of Thursday, August 13, 2026 at 11:20 PM GMT+9

Today's Outlook

Night

Overcast, with a low around 73°F23°C. Light wind from the NNE around 4 mph6 km/h. 99% chance of rain throughout the night.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 79°F26°CLow 73°F23°CPrecip 1.57 in40 mm100%Cloud 96%Wind NNE 4 mph7 km/hFriday: Overcast and warm, with a high of 79°F26°C and morning low of 73°F23°C. Light wind from the NE around 5 mph7 km/h. 100% chance of rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 73°F23°C. Light wind from the NNE around 4 mph6 km/h. 99% chance of rain throughout the night.
Light RainHigh 81°F27°CFeels 85°F30°CLow 73°F23°CPrecip 0.35 in8.8 mm89%Cloud 90%Wind ENE 4 mph6 km/hSaturday: Overcast and warm, with a high of 81°F27°C and morning low of 73°F23°C. Light wind from the E around 5 mph7 km/h. 87% chance of light rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 74°F23°C. Light wind from the ENE around 3 mph5 km/h. 89% chance of light rain throughout the night.
DrizzleHigh 83°F28°CFeels 86°F30°CLow 72°F22°CPrecip 0.06 in1.6 mm37%Cloud 84%Wind E 4 mph6 km/hSunday: Overcast and warm, with a high of 83°F28°C and morning low of 72°F22°C. Light wind from the E around 4 mph7 km/h. 28% chance of drizzle throughout the day. Humid. Sunday Night: Overcast, with a low around 72°F22°C. Light wind from the E around 3 mph5 km/h. 37% chance of drizzle throughout the night.
DrizzleHigh 83°F28°CFeels 88°F31°CLow 73°F23°CPrecip 0.06 in1.4 mm46%Cloud 92%Wind SE 3 mph6 km/hMonday: Overcast and warm, with a high of 83°F28°C and morning low of 73°F23°C. Light wind from the ESE around 4 mph6 km/h. 46% chance of drizzle throughout the day. Heavy, humid air. Monday Night: Overcast, with a low around 73°F23°C. Light wind from the SE around 3 mph5 km/h. 21% chance of drizzle throughout the night.
Light RainHigh 85°F29°CFeels 92°F33°CLow 74°F24°CPrecip 0.09 in2.3 mm41%Cloud 76%Wind SSE 4 mph6 km/hTuesday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 74°F24°C — feels like 91°F33°C. Breezy from the SE at 4 to 7 mph7 to 11 km/h. 41% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the SSE around 3 mph5 km/h. 20% chance of drizzle overnight.
ShowersHigh 87°F30°CFeels 95°F35°CLow 76°F24°CPrecip 0.1 in2.5 mm50%Cloud 66%Wind SE 3 mph5 km/hWednesday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 76°F24°C — feels like 95°F35°C. Light wind from the ESE around 3 mph5 km/h. 50% chance of showers throughout the day. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the S around 3 mph4 km/h. 30% chance of drizzle in the evening.
ShowersHigh 86°F30°CFeels 95°F35°CLow 76°F25°CPrecip 0.22 in5.5 mm69%Cloud 69%Wind SE 3 mph5 km/hThursday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 76°F25°C — feels like 95°F35°C. Light wind from the SE around 4 mph6 km/h. 69% chance of showers throughout the day. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 77°F25°C. Light wind from the S around 3 mph4 km/h. 50% chance of light rain in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
FridayAug 1479°F26°C73°F23°C1.57 in40 mm· 100%96%RainNNE 4 mph7 km/h
SaturdayAug 1581°F27°C
Feels 85°F30°C
73°F23°C0.35 in8.8 mm· 89%90%Light RainENE 4 mph6 km/h
SundayAug 1683°F28°C
Feels 86°F30°C
72°F22°C0.06 in1.6 mm· 37%84%DrizzleE 4 mph6 km/h
MondayAug 1783°F28°C
Feels 88°F31°C
73°F23°C0.06 in1.4 mm· 46%92%DrizzleSE 3 mph6 km/h
TuesdayAug 1885°F29°C
Feels 92°F33°C
74°F24°C0.09 in2.3 mm· 41%76%Light RainSSE 4 mph6 km/h
WednesdayAug 1987°F30°C
Feels 95°F35°C
76°F24°C0.1 in2.5 mm· 50%66%ShowersSE 3 mph5 km/h
ThursdayAug 2086°F30°C
Feels 95°F35°C
76°F25°C0.22 in5.5 mm· 69%69%ShowersSE 3 mph5 km/h
FridayAug 2185°F30°C
Feels 93°F34°C
76°F24°C0.27 in6.8 mm· 66%73%Light RainSSE 4 mph6 km/h
SaturdayAug 2287°F30°C
Feels 95°F35°C
76°F24°C0.2 in5.2 mm· 63%71%Light RainS 4 mph6 km/h
SundayAug 2387°F31°C
Feels 96°F35°C
76°F24°C0.19 in4.8 mm· 46%65%ShowersS 4 mph7 km/h
MondayAug 2488°F31°C
Feels 96°F35°C
76°F24°C0.18 in4.6 mm· 45%54%ShowersS 4 mph6 km/h
TuesdayAug 2588°F31°C
Feels 96°F35°C
75°F24°C0.14 in3.6 mm· 39%52%ShowersSSE 4 mph6 km/h
WednesdayAug 2688°F31°C
Feels 98°F37°C
76°F25°C0.18 in4.6 mm· 35%55%ShowersS 4 mph7 km/h
ThursdayAug 2787°F30°C
Feels 95°F35°C
76°F25°C0.23 in5.8 mm· 42%59%ShowersSSE 4 mph7 km/h
FridayAug 2885°F29°C
Feels 91°F33°C
76°F24°C0.3 in7.7 mm· 51%64%ShowersSE 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: 35.8180°N, 139.3680°E·Elevation: 126m·Timezone: Asia/Tokyo·Population: 147,166