Current Conditions

Jamestown, Saint Helena

67°F20°C

Clear

Wind

SSE 4 mph7 km/h

Humidity

71%

Cloud Cover

47%

As of Thursday, August 13, 2026 at 7:23 AM GMT

Today's Outlook

Day

Partly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h.

Night

Mostly clear, with a low around 68°F20°C. Breezy from the ESE at 8 to 9 mph14 to 15 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Clear	High 69°F20°C	Low 67°F20°C	Precip 0 in0.1 mm2%	Cloud 28%	Wind SE 7 mph11 km/h	Thursday: Partly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. Thursday Night: Mostly clear, with a low around 68°F20°C. Breezy from the ESE at 8 to 9 mph14 to 15 km/h.
Partly Cloudy	High 69°F20°C	Low 67°F20°C	Precip 0 in0 mm—	Cloud 77%	Wind ESE 10 mph17 km/h	Friday: Overcast and warm, with a high of 69°F20°C. Breezy from the ESE at 11 to 13 mph18 to 21 km/h. Friday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the ESE at 9 to 11 mph15 to 18 km/h.
Partly Cloudy	High 69°F20°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 71%	Wind SE 6 mph10 km/h	Saturday: Mostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. Saturday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h.
Partly Cloudy	High 68°F20°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 69%	Wind SE 8 mph12 km/h	Sunday: Mostly cloudy and warm, with a high of 68°F20°C. Breezy from the SE at 8 to 9 mph13 to 15 km/h. Sunday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the SE at 7 to 9 mph12 to 14 km/h.
Cloudy	High 68°F20°C	Low 67°F19°C	Precip 0 in0 mm—	Cloud 90%	Wind SE 12 mph20 km/h	Monday: Overcast and warm, with a high of 68°F20°C. Breezy from the SE at 13 mph21 km/h. Monday Night: Overcast, with a low around 67°F20°C. Breezy from the SE at 12 to 14 mph19 to 23 km/h.
Partly Cloudy	High 69°F21°C	Low 68°F20°C	Precip 0.01 in0.2 mm1%	Cloud 80%	Wind SE 14 mph23 km/h	Tuesday: Overcast and warm, with a high of 69°F21°C. Breezy from the SE at 14 to 15 mph23 to 24 km/h. Tuesday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the SE at 14 mph22 km/h.
Partly Cloudy	High 70°F21°C	Low 69°F20°C	Precip 0.01 in0.2 mm1%	Cloud 72%	Wind SE 15 mph24 km/h	Wednesday: Mostly cloudy and warm, with a high of 69°F21°C. Windy from the SE at 15 to 16 mph24 to 26 km/h. Wednesday Night: Mostly cloudy, with a low around 69°F20°C. Breezy from the SE at 15 mph23 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	69°F20°C	67°F20°C	0 in0.1 mm· 2%	28%	Clear	SE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. NightMostly clear, with a low around 68°F20°C. Breezy from the ESE at 8 to 9 mph14 to 15 km/h.
	FridayAug 14	69°F20°C	67°F20°C	0 in0 mm· —	77%	Partly Cloudy	ESE 10 mph17 km/h
DayOvercast and warm, with a high of 69°F20°C. Breezy from the ESE at 11 to 13 mph18 to 21 km/h. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ESE at 9 to 11 mph15 to 18 km/h.
	SaturdayAug 15	69°F20°C	68°F20°C	0 in0 mm· —	71%	Partly Cloudy	SE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h.
	SundayAug 16	68°F20°C	68°F20°C	0 in0 mm· —	69%	Partly Cloudy	SE 8 mph12 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Breezy from the SE at 8 to 9 mph13 to 15 km/h. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SE at 7 to 9 mph12 to 14 km/h.
	MondayAug 17	68°F20°C	67°F19°C	0 in0 mm· —	90%	Cloudy	SE 12 mph20 km/h
DayOvercast and warm, with a high of 68°F20°C. Breezy from the SE at 13 mph21 km/h. NightOvercast, with a low around 67°F20°C. Breezy from the SE at 12 to 14 mph19 to 23 km/h.
	TuesdayAug 18	69°F21°C	68°F20°C	0.01 in0.2 mm· 1%	80%	Partly Cloudy	SE 14 mph23 km/h
DayOvercast and warm, with a high of 69°F21°C. Breezy from the SE at 14 to 15 mph23 to 24 km/h. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SE at 14 mph22 km/h.
	WednesdayAug 19	70°F21°C	69°F20°C	0.01 in0.2 mm· 1%	72%	Partly Cloudy	SE 15 mph24 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the SE at 15 to 16 mph24 to 26 km/h. NightMostly cloudy, with a low around 69°F20°C. Breezy from the SE at 15 mph23 km/h.
	ThursdayAug 20	70°F21°C	69°F20°C	0.01 in0.2 mm· —	76%	Partly Cloudy	SE 15 mph24 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Windy from the SE at 15 to 16 mph24 to 26 km/h. NightMostly cloudy, with a low around 69°F20°C. Breezy from the SE at 15 mph24 km/h.
	FridayAug 21	70°F21°C	69°F20°C	0.01 in0.2 mm· 1%	80%	Partly Cloudy	SE 17 mph27 km/h
DayOvercast and warm, with a high of 70°F21°C. Windy from the SE at 17 to 18 mph27 to 29 km/h. NightMostly cloudy, with a low around 69°F20°C. Windy from the SE at 17 to 18 mph27 to 29 km/h.
	SaturdayAug 22	69°F21°C	69°F20°C	0.01 in0.3 mm· 2%	73%	Partly Cloudy	ESE 19 mph31 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 19 to 20 mph31 to 32 km/h. NightMostly cloudy, with a low around 69°F20°C. Windy from the ESE at 19 to 20 mph30 to 32 km/h.
	SundayAug 23	69°F21°C	68°F20°C	0.01 in0.3 mm· 2%	76%	Partly Cloudy	ESE 20 mph32 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 20 mph32 km/h. NightMostly cloudy, with a low around 69°F20°C. Windy from the ESE at 19 to 20 mph31 to 32 km/h.
	MondayAug 24	69°F21°C	68°F20°C	0.01 in0.3 mm· 2%	76%	Partly Cloudy	ESE 18 mph29 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 18 to 19 mph29 to 31 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the ESE at 18 to 19 mph29 to 31 km/h.
	TuesdayAug 25	69°F21°C	68°F20°C	0.01 in0.3 mm· 2%	76%	Partly Cloudy	SE 16 mph25 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Windy from the SE at 16 to 17 mph26 to 27 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the SE at 16 mph25 km/h.
	WednesdayAug 26	69°F21°C	68°F20°C	0.01 in0.2 mm· 1%	74%	Partly Cloudy	SE 14 mph23 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 14 to 15 mph23 to 24 km/h. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SE at 14 mph23 km/h.
	ThursdayAug 27	69°F21°C	68°F20°C	0.01 in0.2 mm· 3%	69%	Partly Cloudy	SE 14 mph22 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Breezy from the SE at 14 to 15 mph23 to 23 km/h. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SE at 14 mph22 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.

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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

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Coordinates: 15.9249°S, 5.7182°W·Elevation: 10m·Timezone: Atlantic/St_Helena·Population: 637