Today
Sun, Jun 21
Moderate drizzle
29°21°
- Rain chance
- 71%
- Precip
- 3.6 mm
- Max wind
- 17 km/h
Sihu weather forecast
Jiangsu, China · Shanghai time · 34.63°, 117.97°
Current conditions · 11:00 PM local
Current conditions in Sihu
21°C
Light drizzle
Feels like 21°C
- Humidity
- 88%
- Wind
- 15 km/h ENE
- Gusts
- 26 km/h
- UV index
- 0
- Visibility
- 3.7 km
Right now
Conditions in Sihu at the moment: light drizzle, 20 °C. It feels close to the actual reading at 21 °C. Wind is from the ENE at 15 km/h. Precipitation in the last hour measured 0.1 mm. Humidity stands at 88% with sea-level pressure near 1010 hPa.
At a glance
Today
29° / 21°Moderate drizzle · rain likely (71%)
Tomorrow
27° / 19°Moderate drizzle · rain likely (62%)
Upcoming · to Saturday
32° / 18°A steady stretch: highs near 32°, lows around 18°, and no day above a 6% rain chance through Saturday.
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Next 3 days
Expect moderate drizzle today, between 20 °C and 29 °C. Rain chance peaks at 71% with around 3.6 mm possible. Expect moderate drizzle tomorrow, between 19 °C and 27 °C. Rain chance peaks at 62% with around 4 mm possible. Expect light drizzle Tuesday, between 18 °C and 28 °C.
Tomorrow
Mon, Jun 22
Moderate drizzle
27°19°
- Rain chance
- 62%
- Precip
- 4 mm
- Max wind
- 14 km/h
Tuesday
Tue, Jun 23
Light drizzle
28°19°
- Rain chance
- 4%
- Precip
- 0.3 mm
- Max wind
- 18 km/h
Next 48 hours
- 12 AM24°0%6 km/h
- 1 AM23°0%6 km/h
- 2 AM24°0%7 km/h
- 3 AM23°0%5 km/h
- 4 AM23°0%4 km/h
- 5 AM23°0%3 km/h
- 6 AM23°7%7 km/h
- 7 AM25°16%7 km/h
- 8 AM26°22%16 km/h
- 9 AM27°22%17 km/h
- 10 AM28°19%16 km/h
- 11 AM29°18%16 km/h
- 12 PM29°21%16 km/h
- 1 PM29°26%17 km/h
- 2 PM27°29%5 km/h
- 3 PM27°28%9 km/h
- 4 PM27°26%9 km/h
- 5 PM25°27%12 km/h
- 6 PM24°35%12 km/h
- 7 PM23°47%9 km/h
- 8 PM23°57%10 km/h
- 9 PM22°65%14 km/h
- 10 PM21°70%15 km/h
- 11 PM21°71%15 km/h
- 12 AM20°62%14 km/h
- 1 AM20°47%13 km/h
- 2 AM19°37%10 km/h
- 3 AM20°39%8 km/h
- 4 AM20°45%8 km/h
- 5 AM20°47%9 km/h
- 6 AM19°39%12 km/h
- 7 AM20°26%9 km/h
- 8 AM22°16%10 km/h
- 9 AM24°12%14 km/h
- 10 AM25°10%14 km/h
- 11 AM26°8%14 km/h
- 12 PM27°6%14 km/h
- 1 PM27°4%12 km/h
- 2 PM27°2%12 km/h
- 3 PM27°1%12 km/h
- 4 PM27°0%13 km/h
- 5 PM26°0%14 km/h
- 6 PM25°0%14 km/h
- 7 PM24°0%11 km/h
- 8 PM22°0%10 km/h
- 9 PM22°0%11 km/h
- 10 PM21°0%11 km/h
- 11 PM20°0%10 km/h
In depth
Across Sihu right now you'll find light drizzle and a temperature of 20 °C, with the apparent temperature at 21 °C. Today's forecast calls for moderate drizzle, topping out near 29 °C before falling back to 20 °C overnight. Winds blow mainly from the ENE around 17 km/h, with gusts up to 34 km/h. A warming trend takes daytime highs from 27 to 32 °C over the coming week. Rain is in the picture on today, tomorrow, with roughly 8 mm expected in total across the week. Tomorrow brings moderate drizzle with a high of 27 °C and a 62% chance of precipitation. Sunrise comes at 04:55 and sunset at 19:24, giving 14.5 hours of daylight. Current humidity sits at 88% with pressure near 1010 hPa. Looking further out, Thursday shows overcast with a high around 32 °C, while Saturday ends the week at 32 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Air quality
116
Unhealthy for Sensitive Groups
US AQI · European AQI 73
Air quality in Sihu is currently unhealthy for sensitive groups, with a US AQI of 116 (European AQI 73). The dominant pollutant right now is PM2.5. Children, older adults and people with heart or lung conditions should limit prolonged outdoor exertion. Fine particulate matter (PM2.5) measures 39.7 µg/m³.
Pollutants
- PM2.5
- 39.7 µg/m³
- PM10
- 46.4 µg/m³
- Ozone (O₃)
- 80 µg/m³
- NO₂
- 28.3 µg/m³
- SO₂
- 8.9 µg/m³
- CO
- 342 µg/m³
- Dust
- 12 µg/m³
Sun & UV
- Sunrise
- 4:55 AM
- Sunset
- 7:24 PM
- Daylight
- 14h 29m
- Max UV
- 5.5 Moderate
Wind
- Wind
- 15 km/h
- Gusts
- 26 km/h
- Direction
- ENE (68°)
Farming weather
Soil temperatures today read surface 19.5 °C, 6 cm 22.7 °C, 18 cm 24.8 °C, 54 cm 22.7 °C. Soil moisture sits at 0-1 cm at 0.23 m³/m³, 3-9 cm at 0.21 m³/m³, 27-81 cm at 0.23 m³/m³. For wheat, the root-zone reading is within the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 33 mm against only 8 mm of expected rain — a 25 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 07:00 on 2026-06-22, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 32 °C (threshold 32 °C). Projected growing degree days over the next week: wheat 139, maize 100.
- Topsoil moisture
- 0.233 m³/m³
- Soil temp
- 23°C
- ET₀ today
- 3.68 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 7.9 mm
- Wind
- 15 km/h
- Humidity
- 88%
Advisory summary
No weather alert thresholds are crossed for Sihu in the current forecast (derived from forecast data, not official warnings). Conditions may still change — check back for updates.
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All data for Sihu
| Variable | Value |
|---|---|
| City | Sihu, Jiangsu, China |
| Coordinates | 34.62625, 117.97139 |
| Elevation | 37 m |
| Timezone | Asia/Shanghai |
| Population | 40,430 |
| Observed at (local) | 11:00 PM |
| Temperature (2 m) | 21°C |
| Apparent temperature | 21°C |
| Relative humidity (2 m) | 88% |
| Dew point (2 m) | 18°C |
| Precipitation (last hour) | 0.1 mm |
| Rain | 0.1 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 51 |
| Cloud cover | 100% |
| Surface pressure | 1006 hPa |
| Sea-level pressure | 1010 hPa |
| Wind speed (10 m) | 15 km/h |
| Wind gusts (10 m) | 26 km/h |
| Wind direction (10 m) | 68° (ENE) |
| Visibility | 3.7 km |
| UV index | 0 |
| Day / night | Night |
| Today max / min | 29°C / 21°C |
| Today feels-like max / min | 33°C / 21°C |
| Today precipitation sum | 3.6 mm |
| Today rain sum | 3.4 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 71% |
| Today max wind / gusts | 17 km/h / 34 km/h |
| Dominant wind direction | 70° (ENE) |
| Sunrise / sunset | 4:55 AM / 7:24 PM |
| Daylight duration | 14h 29m |
| Sunshine duration | 7h 22m |
| Max UV index | 5.5 |
| Reference evapotranspiration (ET₀) | 3.68 mm |
| Topsoil moisture (0–1 cm) | 0.233 m³/m³ |
| Surface soil temperature | 23°C |
| US AQI | 116 |
| European AQI | 73 |
| PM2.5 | 39.7 µg/m³ |
| PM10 | 46.4 µg/m³ |
| Ozone (O₃) | 80 µg/m³ |
| Nitrogen dioxide (NO₂) | 28.3 µg/m³ |
| Sulphur dioxide (SO₂) | 8.9 µg/m³ |
| Carbon monoxide (CO) | 342 µg/m³ |
| Dust | 12 µg/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/cn/jiangsu/sihu" width="320" height="180" frameborder="0" title="Sihu weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Sihu tomorrow?
Rain is likely in Sihu tomorrow — the chance of precipitation reaches 62%, with around 4 mm expected.
What is the temperature in Sihu today?
Today Sihu sees moderate drizzle with a high of 29 °C and a low of 20 °C.
How hot will it be in Sihu tomorrow?
Tomorrow's high in Sihu is forecast at 27 °C with moderate drizzle.
Is it windy in Sihu today?
No, not especially; gusts only reach up to 34 km/h today.
What is the UV index in Sihu today?
The UV index peaks at 6 today, which is moderate.
What time is sunrise and sunset in Sihu today?
The sun rises at 04:55 and sets at 19:24 local time.
Is the air quality in Sihu good today?
Air quality is poor right now, with a US AQI reading of 116.