Current Conditions
Iwai, Ibaraki
Wind
SSW 14 mph23 km/h
Humidity
91%
Cloud Cover
95%
As of Wednesday, September 9, 2026 at 1:51 AM GMT+9
Today's Outlook
Day
Overcast and hot, with a high of 87°F31°C and morning low of 80°F27°C — feels like 100°F38°C. Breezy from the SSW at 12 to 14 mph19 to 22 km/h. 100% chance of rain throughout the day. Heat risk in the afternoon.
Night
Overcast, with a low around 72°F22°C. Breezy from the SSE at 11 to 14 mph18 to 23 km/h. 100% chance of heavy rain throughout the night.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Heavy Rain | High 87°F31°CFeels 101°F38°C | Low 72°F22°C | Precip 1.17 in29.7 mm100% | Cloud 92% | Wind SSW 11 mph18 km/h | Wednesday: Overcast and hot, with a high of 87°F31°C and morning low of 80°F27°C — feels like 100°F38°C. Breezy from the SSW at 12 to 14 mph19 to 22 km/h. 100% chance of rain throughout the day. Heat risk in the afternoon. Wednesday Night: Overcast, with a low around 72°F22°C. Breezy from the SSE at 11 to 14 mph18 to 23 km/h. 100% chance of heavy rain throughout the night. | |
| Rain | High 72°F22°C | Low 68°F20°C | Precip 0.42 in10.7 mm94% | Cloud 96% | Wind ENE 6 mph9 km/h | Thursday: Overcast and warm, with a high of 72°F22°C. Light wind from the NE around 6 mph9 km/h. 50% chance of light rain throughout the day. Thursday Night: Overcast, with a low around 68°F20°C. Light wind from the ENE around 5 mph8 km/h. 94% chance of rain throughout the night. | |
| Rain | High 73°F23°C | Low 66°F19°C | Precip 1.13 in28.7 mm88% | Cloud 91% | Wind NNE 4 mph7 km/h | Friday: Overcast and warm, with a high of 73°F23°C and morning low of 66°F19°C. Light wind from the NNE around 5 mph7 km/h. 87% chance of rain throughout the day. Humid. Friday Night: Overcast, with a low around 67°F19°C. Light wind from the NNE around 4 mph6 km/h. 88% chance of rain throughout the night. | |
| Drizzle | High 78°F26°C | Low 69°F21°C | Precip 0.08 in2.1 mm15% | Cloud 76% | Wind ENE 4 mph7 km/h | Saturday: Overcast and warm, with a high of 78°F26°C and morning low of 69°F21°C. Light wind from the ENE around 5 mph7 km/h. 15% chance of drizzle throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 13% chance of drizzle throughout the night. | |
| Drizzle | High 79°F26°C | Low 71°F22°C | Precip 0.07 in1.8 mm31% | Cloud 83% | Wind ENE 4 mph6 km/h | Sunday: Overcast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the ENE around 4 mph7 km/h. 31% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 71°F22°C. Light wind from the NE around 4 mph6 km/h. 15% chance of drizzle throughout the night. | |
| Showers | High 86°F30°CFeels 94°F35°C | Low 74°F23°C | Precip 0.06 in1.5 mm29% | Cloud 68% | Wind S 5 mph8 km/h | Monday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 74°F23°C — feels like 95°F35°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 10% chance of drizzle. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 74°F23°C. Light wind from the SSE around 4 mph6 km/h. 29% chance of showers throughout the night. | |
| Light Rain | High 80°F27°C | Low 73°F23°C | Precip 0.48 in12.3 mm83% | Cloud 94% | Wind E 5 mph9 km/h | Tuesday: Overcast and warm, with a high of 80°F27°C and morning low of 75°F24°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. 77% chance of light rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 83% 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°F38°C | 72°F22°C | 1.17 in29.7 mm· 100% | 92% | Heavy Rain | SSW 11 mph18 km/h | |
DayOvercast and hot, with a high of 87°F31°C and morning low of 80°F27°C — feels like 100°F38°C. Breezy from the SSW at 12 to 14 mph19 to 22 km/h. 100% chance of rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 72°F22°C. Breezy from the SSE at 11 to 14 mph18 to 23 km/h. 100% chance of heavy rain throughout the night. | |||||||
| ThursdaySep 10 | 72°F22°C | 68°F20°C | 0.42 in10.7 mm· 94% | 96% | Rain | ENE 6 mph9 km/h | |
DayOvercast and warm, with a high of 72°F22°C. Light wind from the NE around 6 mph9 km/h. 50% chance of light rain throughout the day. NightOvercast, with a low around 68°F20°C. Light wind from the ENE around 5 mph8 km/h. 94% chance of rain throughout the night. | |||||||
| FridaySep 11 | 73°F23°C | 66°F19°C | 1.13 in28.7 mm· 88% | 91% | Rain | NNE 4 mph7 km/h | |
DayOvercast and warm, with a high of 73°F23°C and morning low of 66°F19°C. Light wind from the NNE around 5 mph7 km/h. 87% chance of rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the NNE around 4 mph6 km/h. 88% chance of rain throughout the night. | |||||||
| SaturdaySep 12 | 78°F26°C | 69°F21°C | 0.08 in2.1 mm· 15% | 76% | Drizzle | ENE 4 mph7 km/h | |
DayOvercast and warm, with a high of 78°F26°C and morning low of 69°F21°C. Light wind from the ENE around 5 mph7 km/h. 15% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 13% chance of drizzle throughout the night. | |||||||
| SundaySep 13 | 79°F26°C | 71°F22°C | 0.07 in1.8 mm· 31% | 83% | Drizzle | ENE 4 mph6 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 4 mph7 km/h. 31% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Light wind from the NE around 4 mph6 km/h. 15% chance of drizzle throughout the night. | |||||||
| MondaySep 14 | 86°F30°C Feels 94°F35°C | 74°F23°C | 0.06 in1.5 mm· 29% | 68% | Showers | S 5 mph8 km/h | |
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 74°F23°C — feels like 95°F35°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 10% chance of drizzle. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Light wind from the SSE around 4 mph6 km/h. 29% chance of showers throughout the night. | |||||||
| TuesdaySep 15 | 80°F27°C | 73°F23°C | 0.48 in12.3 mm· 83% | 94% | Light Rain | E 5 mph9 km/h | |
DayOvercast and warm, with a high of 80°F27°C and morning low of 75°F24°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. 77% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 83% chance of light rain throughout the night. | |||||||
| WednesdaySep 16 | 76°F24°C | 72°F22°C | 0.62 in15.8 mm· 80% | 97% | Light Rain | NE 6 mph9 km/h | |
DayOvercast and warm, with a high of 76°F24°C. Light wind from the NE around 6 mph9 km/h. 78% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the NE around 5 mph8 km/h. 80% chance of light rain throughout the night. | |||||||
| ThursdaySep 17 | 75°F24°C | 71°F21°C | 0.49 in12.5 mm· 73% | 92% | Light Rain | NE 6 mph9 km/h | |
DayOvercast and warm, with a high of 75°F24°C and morning low of 71°F21°C. Breezy from the NE at 6 to 7 mph10 to 11 km/h. 73% chance of light rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Light wind from the NE around 5 mph9 km/h. 61% chance of light rain throughout the night. | |||||||
| FridaySep 18 | 75°F24°C | 69°F21°C | 0.49 in12.5 mm· 52% | 88% | Light Rain | NNE 7 mph12 km/h | |
DayOvercast and warm, with a high of 75°F24°C and morning low of 69°F21°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. 52% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 47% chance of light rain throughout the night. | |||||||
| SaturdaySep 19 | 74°F24°C | 69°F21°C | 0.65 in16.6 mm· 61% | 88% | Rain | NNE 8 mph13 km/h | |
DayOvercast and warm, with a high of 74°F24°C and morning low of 69°F21°C. Breezy from the NNE at 8 to 9 mph14 to 15 km/h. 61% chance of rain throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Breezy from the NNE at 8 mph12 km/h. 58% chance of light rain throughout the night. | |||||||
| SundaySep 20 | 76°F25°C | 70°F21°C | 0.85 in21.5 mm· 64% | 86% | Rain | NE 9 mph15 km/h | |
DayOvercast and warm, with a high of 76°F25°C and morning low of 70°F21°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. 64% chance of rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NE at 9 mph14 km/h. 63% chance of rain throughout the night. | |||||||
| MondaySep 21 | 78°F26°C | 71°F21°C | 0.78 in19.8 mm· 52% | 76% | Rain | ENE 9 mph15 km/h | |
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 71°F21°C. Breezy from the ENE at 10 to 11 mph16 to 17 km/h. 51% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 71°F21°C. Breezy from the ENE at 9 mph14 km/h. 52% chance of light rain throughout the night. | |||||||
| TuesdaySep 22 | 80°F26°C | 70°F21°C | 0.39 in10 mm· 35% | 62% | Showers | SE 8 mph13 km/h | |
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 70°F21°C. Breezy from the SE at 9 mph14 km/h. 32% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SE at 8 mph12 km/h. 35% chance of showers throughout the night. | |||||||
| WednesdaySep 23 | 79°F26°C | 69°F21°C | 0.24 in6.1 mm· 33% | 63% | Showers | E 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. 33% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 30% chance of showers throughout the night. | |||||||
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 →
Coordinates: 36.0500°N, 139.9000°E·Elevation: 5m·Timezone: Asia/Tokyo·Population: 42,497