Current Conditions

Jamestown, Saint Helena

67°F20°C

Partly Cloudy

Wind

SE 15 mph24 km/h

Humidity

68%

Cloud Cover

66%

As of Wednesday, September 23, 2026 at 7:17 AM GMT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 14 to 15 mph22 to 24 km/h.

Night

Partly cloudy, with a low around 69°F20°C. Breezy from the ESE at 12 mph19 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 69°F20°C	Low 67°F20°C	Precip 0 in0.1 mm1%	Cloud 49%	Wind SE 13 mph21 km/h	Wednesday: Mostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 14 to 15 mph22 to 24 km/h. Wednesday Night: Partly cloudy, with a low around 69°F20°C. Breezy from the ESE at 12 mph19 km/h.
Drizzle	High 69°F21°C	Low 68°F20°C	Precip 0.01 in0.3 mm11%	Cloud 42%	Wind ESE 14 mph22 km/h	Thursday: Partly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 15 to 16 mph24 to 26 km/h. 11% chance of drizzle. Thursday Night: Partly cloudy, with a low around 68°F20°C. Breezy from the ESE at 12 to 13 mph20 to 21 km/h.
Partly Cloudy	High 69°F21°C	Low 68°F20°C	Precip 0.02 in0.5 mm9%	Cloud 47%	Wind ESE 16 mph26 km/h	Friday: Partly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 17 to 18 mph28 to 29 km/h. Friday Night: Partly cloudy, with a low around 68°F20°C. Windy from the ESE at 15 to 17 mph24 to 27 km/h.
Partly Cloudy	High 69°F21°C	Low 68°F20°C	Precip 0.01 in0.2 mm2%	Cloud 55%	Wind ESE 16 mph26 km/h	Saturday: Mostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 17 to 18 mph27 to 29 km/h. Saturday Night: Partly cloudy, with a low around 68°F20°C. Windy from the SE at 16 mph25 km/h.
Partly Cloudy	High 69°F21°C	Low 68°F20°C	Precip 0 in0.1 mm1%	Cloud 45%	Wind ESE 14 mph22 km/h	Sunday: Mostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 14 to 16 mph23 to 25 km/h. Sunday Night: Partly cloudy, with a low around 68°F20°C. Breezy from the ESE at 13 to 15 mph21 to 25 km/h.
Partly Cloudy	High 69°F21°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 46%	Wind ESE 8 mph13 km/h	Monday: Mostly cloudy and warm, with a high of 69°F21°C. Breezy from the ESE at 9 to 10 mph14 to 17 km/h. Monday Night: Partly cloudy, with a low around 68°F20°C. Breezy from the ESE at 8 to 10 mph12 to 16 km/h.
Clear	High 69°F21°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 34%	Wind ESE 5 mph9 km/h	Tuesday: Partly cloudy and warm, with a high of 69°F21°C. Light wind from the SE around 6 mph9 km/h. Tuesday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the ESE around 5 mph8 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	69°F20°C	67°F20°C	0 in0.1 mm· 1%	49%	Partly Cloudy	SE 13 mph21 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 14 to 15 mph22 to 24 km/h. NightPartly cloudy, with a low around 69°F20°C. Breezy from the ESE at 12 mph19 km/h.
	ThursdaySep 24	69°F21°C	68°F20°C	0.01 in0.3 mm· 11%	42%	Drizzle	ESE 14 mph22 km/h
DayPartly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 15 to 16 mph24 to 26 km/h. 11% chance of drizzle. NightPartly cloudy, with a low around 68°F20°C. Breezy from the ESE at 12 to 13 mph20 to 21 km/h.
	FridaySep 25	69°F21°C	68°F20°C	0.02 in0.5 mm· 9%	47%	Partly Cloudy	ESE 16 mph26 km/h
DayPartly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 17 to 18 mph28 to 29 km/h. NightPartly cloudy, with a low around 68°F20°C. Windy from the ESE at 15 to 17 mph24 to 27 km/h.
	SaturdaySep 26	69°F21°C	68°F20°C	0.01 in0.2 mm· 2%	55%	Partly Cloudy	ESE 16 mph26 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 17 to 18 mph27 to 29 km/h. NightPartly cloudy, with a low around 68°F20°C. Windy from the SE at 16 mph25 km/h.
	SundaySep 27	69°F21°C	68°F20°C	0 in0.1 mm· 1%	45%	Partly Cloudy	ESE 14 mph22 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 14 to 16 mph23 to 25 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the ESE at 13 to 15 mph21 to 25 km/h.
	MondaySep 28	69°F21°C	68°F20°C	0 in0 mm· —	46%	Partly Cloudy	ESE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Breezy from the ESE at 9 to 10 mph14 to 17 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the ESE at 8 to 10 mph12 to 16 km/h.
	TuesdaySep 29	69°F21°C	68°F20°C	0 in0 mm· —	34%	Clear	ESE 5 mph9 km/h
DayPartly cloudy and warm, with a high of 69°F21°C. Light wind from the SE around 6 mph9 km/h. NightPartly cloudy, with a low around 68°F20°C. Light wind from the ESE around 5 mph8 km/h.
	WednesdaySep 30	70°F21°C	68°F20°C	0 in0 mm· —	35%	Clear	SE 7 mph12 km/h
DayPartly cloudy and warm, with a high of 70°F21°C. Breezy from the SE at 8 to 9 mph13 to 14 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SE at 7 to 9 mph11 to 14 km/h.
	ThursdayOct 1	70°F21°C	69°F20°C	0 in0.1 mm· 1%	48%	Partly Cloudy	SE 12 mph19 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Breezy from the SE at 12 to 13 mph20 to 21 km/h. NightPartly cloudy, with a low around 69°F20°C. Breezy from the SE at 11 to 13 mph18 to 21 km/h.
	FridayOct 2	70°F21°C	69°F21°C	0.01 in0.2 mm· 2%	60%	Partly Cloudy	ESE 15 mph24 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Windy from the ESE at 15 to 16 mph25 to 26 km/h. NightMostly cloudy, with a low around 69°F21°C. Breezy from the ESE at 15 mph23 km/h.
	SaturdayOct 3	70°F21°C	69°F21°C	0.01 in0.2 mm· 1%	72%	Partly Cloudy	ESE 16 mph26 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Windy from the ESE at 16 to 17 mph26 to 27 km/h. NightMostly cloudy, with a low around 69°F21°C. Windy from the ESE at 16 to 17 mph26 to 27 km/h.
	SundayOct 4	70°F21°C	69°F21°C	0.01 in0.2 mm· —	77%	Partly Cloudy	SE 19 mph30 km/h
DayOvercast and warm, with a high of 70°F21°C. Windy from the SE at 19 to 20 mph31 to 31 km/h. NightMostly cloudy, with a low around 69°F21°C. Windy from the SE at 18 to 20 mph30 to 32 km/h.
	MondayOct 5	70°F21°C	69°F21°C	0.01 in0.3 mm· 1%	70%	Partly Cloudy	SE 21 mph33 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Windy from the SE at 21 to 22 mph34 to 35 km/h. NightMostly cloudy, with a low around 69°F21°C. Windy from the SE at 20 to 21 mph33 to 33 km/h.
	TuesdayOct 6	70°F21°C	69°F21°C	0.01 in0.3 mm· 2%	66%	Partly Cloudy	ESE 20 mph32 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Windy from the ESE at 20 to 21 mph33 to 34 km/h. NightMostly cloudy, with a low around 69°F21°C. Windy from the ESE at 19 to 20 mph31 to 33 km/h.
	WednesdayOct 7	70°F21°C	69°F21°C	0.01 in0.3 mm· 1%	65%	Partly Cloudy	ESE 18 mph29 km/h
DayMostly cloudy and warm, with a high of 70°F21°C. Windy from the ESE at 18 to 19 mph30 to 31 km/h. NightMostly cloudy, with a low around 69°F21°C. Windy from the ESE at 18 mph29 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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Coordinates: 15.9249°S, 5.7182°W·Elevation: 10m·Timezone: Atlantic/St_Helena·Population: 637