Current Conditions

Saint Helier, St Helier

66°F19°C
Clear

Wind

WSW 4 mph7 km/h

Humidity

80%

Cloud Cover

29%

As of Wednesday, September 23, 2026 at 5:50 AM GMT+1

Today's Outlook

Day

Partly cloudy and mild, with a high of 66°F19°C. Breezy from the NW at 9 to 12 mph15 to 19 km/h.

Night

Partly cloudy, with a low around 65°F18°C. Breezy from the NNE at 7 to 8 mph11 to 13 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 66°F19°CLow 64°F18°CPrecip 0 in0 mmCloud 36%Wind NNW 8 mph13 km/hWednesday: Partly cloudy and mild, with a high of 66°F19°C. Breezy from the NW at 9 to 12 mph15 to 19 km/h. Wednesday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the NNE at 7 to 8 mph11 to 13 km/h.
Partly CloudyHigh 67°F19°CLow 63°F17°CPrecip 0 in0 mmCloud 65%Wind ENE 6 mph10 km/hThursday: Mostly cloudy and mild, with a high of 66°F19°C. Breezy from the ESE at 6 to 7 mph9 to 12 km/h. Thursday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the NE at 7 to 9 mph12 to 14 km/h.
ClearHigh 67°F19°CLow 65°F18°CPrecip 0 in0 mmCloud 19%Wind NW 10 mph15 km/hFriday: Mostly clear and mild, with a high of 66°F19°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h. Friday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the NW at 10 to 14 mph17 to 23 km/h.
Partly CloudyHigh 65°F18°CLow 63°F17°CPrecip 0 in0.1 mm4%Cloud 78%Wind NNW 10 mph16 km/hSaturday: Overcast and mild, with a high of 64°F18°C. Breezy from the NNW at 9 to 13 mph15 to 21 km/h. Saturday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the NNW at 10 to 15 mph17 to 24 km/h.
Light RainHigh 67°F19°CLow 64°F18°CPrecip 0.12 in3.1 mm45%Cloud 80%Wind S 11 mph17 km/hSunday: Mostly cloudy and mild, with a high of 67°F19°C. Breezy from the S at 12 to 14 mph19 to 22 km/h. 39% chance of drizzle throughout the day. Sunday Night: Overcast, with a low around 64°F18°C. Breezy from the S at 9 to 11 mph15 to 17 km/h. 45% chance of light rain throughout the night.
Light RainHigh 66°F19°CLow 64°F18°CPrecip 0.2 in5 mm46%Cloud 86%Wind SE 10 mph17 km/hMonday: Overcast and mild, with a high of 66°F19°C. Breezy from the SE at 9 to 10 mph15 to 16 km/h. 46% chance of light rain throughout the day. Monday Night: Overcast, with a low around 65°F18°C. Breezy from the SSE at 12 to 14 mph19 to 23 km/h. 45% chance of light rain throughout the night.
Light RainHigh 70°F21°CLow 66°F19°CPrecip 0.11 in2.8 mm24%Cloud 73%Wind SSE 18 mph30 km/hTuesday: Mostly cloudy and warm, with a high of 70°F21°C. Windy from the SSE at 19 to 20 mph31 to 33 km/h. 23% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 66°F19°C. Windy from the SSE at 18 to 19 mph28 to 31 km/h. 24% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2366°F19°C64°F18°C0 in0 mm· —36%ClearNNW 8 mph13 km/h
ThursdaySep 2467°F19°C63°F17°C0 in0 mm· —65%Partly CloudyENE 6 mph10 km/h
FridaySep 2567°F19°C65°F18°C0 in0 mm· —19%ClearNW 10 mph15 km/h
SaturdaySep 2665°F18°C63°F17°C0 in0.1 mm· 4%78%Partly CloudyNNW 10 mph16 km/h
SundaySep 2767°F19°C64°F18°C0.12 in3.1 mm· 45%80%Light RainS 11 mph17 km/h
MondaySep 2866°F19°C64°F18°C0.2 in5 mm· 46%86%Light RainSE 10 mph17 km/h
TuesdaySep 2970°F21°C66°F19°C0.11 in2.8 mm· 24%73%Light RainSSE 18 mph30 km/h
WednesdaySep 3068°F20°C66°F19°C0.18 in4.6 mm· 39%66%ShowersSSW 17 mph27 km/h
ThursdayOct 165°F18°C64°F18°C0.16 in4.1 mm· 32%58%ShowersSW 14 mph23 km/h
FridayOct 264°F18°C62°F17°C0.13 in3.4 mm· 32%57%ShowersSW 13 mph21 km/h
SaturdayOct 364°F18°C62°F17°C0.09 in2.2 mm· 21%64%DrizzleSSW 13 mph21 km/h
SundayOct 464°F18°C62°F17°C0.11 in2.8 mm· 25%61%ShowersS 14 mph22 km/h
MondayOct 564°F18°C62°F17°C0.15 in3.8 mm· 31%58%ShowersS 14 mph23 km/h
TuesdayOct 663°F17°C62°F16°C0.14 in3.6 mm· 34%61%ShowersW 16 mph25 km/h
WednesdayOct 763°F17°C61°F16°C0.16 in4 mm· 33%63%ShowersNW 16 mph25 km/h

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: 49.1880°N, 2.1049°W·Elevation: 11m·Timezone: Europe/Jersey·Population: 28,000