Current Conditions

Jamestown, Saint Helena

68°F20°C

Partly Cloudy

Wind

ESE 17 mph28 km/h

Humidity

78%

Cloud Cover

77%

As of Thursday, September 3, 2026 at 1:25 AM GMT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 20 to 21 mph32 to 33 km/h.

Night

Mostly cloudy, with a low around 68°F20°C. Windy from the ESE at 19 to 21 mph30 to 34 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 68°F20°C	Low 68°F20°C	Precip 0.02 in0.4 mm—	Cloud 70%	Wind ESE 19 mph31 km/h	Thursday: Mostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 20 to 21 mph32 to 33 km/h. Thursday Night: Mostly cloudy, with a low around 68°F20°C. Windy from the ESE at 19 to 21 mph30 to 34 km/h.
Partly Cloudy	High 68°F20°C	Low 68°F20°C	Precip 0.02 in0.5 mm—	Cloud 77%	Wind ESE 18 mph29 km/h	Friday: Mostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 19 to 20 mph30 to 32 km/h. Friday Night: Mostly cloudy, with a low around 68°F20°C. Windy from the ESE at 18 to 20 mph29 to 32 km/h.
Drizzle	High 68°F20°C	Low 67°F20°C	Precip 0.02 in0.5 mm22%	Cloud 73%	Wind ESE 14 mph22 km/h	Saturday: Mostly cloudy and mild, with a high of 68°F20°C. Windy from the ESE at 15 to 17 mph24 to 27 km/h. 22% chance of drizzle in the morning. Saturday Night: Mostly cloudy, with a low around 67°F20°C. Breezy from the ESE at 13 to 14 mph20 to 23 km/h.
Partly Cloudy	High 68°F20°C	Low 67°F20°C	Precip 0.01 in0.2 mm—	Cloud 57%	Wind ESE 12 mph19 km/h	Sunday: Mostly cloudy and warm, with a high of 68°F20°C. Breezy from the ESE at 12 to 13 mph20 to 20 km/h. Sunday Night: Mostly cloudy, with a low around 67°F20°C. Breezy from the ESE at 11 to 13 mph18 to 21 km/h.
Partly Cloudy	High 68°F20°C	Low 67°F20°C	Precip 0.01 in0.2 mm1%	Cloud 64%	Wind ESE 14 mph23 km/h	Monday: Mostly cloudy and warm, with a high of 68°F20°C. Breezy from the ESE at 15 mph23 km/h. Monday Night: Mostly cloudy, with a low around 67°F20°C. Breezy from the ESE at 13 to 14 mph22 to 23 km/h.
Partly Cloudy	High 68°F20°C	Low 67°F19°C	Precip 0.01 in0.3 mm2%	Cloud 71%	Wind ESE 14 mph23 km/h	Tuesday: Mostly cloudy and warm, with a high of 68°F20°C. Breezy from the ESE at 15 mph23 km/h. Tuesday Night: Mostly cloudy, with a low around 67°F19°C. Breezy from the ESE at 14 to 15 mph22 to 24 km/h.
Partly Cloudy	High 68°F20°C	Low 67°F20°C	Precip 0.02 in0.5 mm7%	Cloud 67%	Wind ESE 16 mph25 km/h	Wednesday: Mostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 16 to 17 mph26 to 27 km/h. Wednesday Night: Mostly cloudy, with a low around 67°F20°C. Windy from the ESE at 15 to 16 mph24 to 26 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdaySep 3	68°F20°C	68°F20°C	0.02 in0.4 mm· —	70%	Partly Cloudy	ESE 19 mph31 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 20 to 21 mph32 to 33 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the ESE at 19 to 21 mph30 to 34 km/h.
	FridaySep 4	68°F20°C	68°F20°C	0.02 in0.5 mm· —	77%	Partly Cloudy	ESE 18 mph29 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 19 to 20 mph30 to 32 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the ESE at 18 to 20 mph29 to 32 km/h.
	SaturdaySep 5	68°F20°C	67°F20°C	0.02 in0.5 mm· 22%	73%	Drizzle	ESE 14 mph22 km/h
DayMostly cloudy and mild, with a high of 68°F20°C. Windy from the ESE at 15 to 17 mph24 to 27 km/h. 22% chance of drizzle in the morning. NightMostly cloudy, with a low around 67°F20°C. Breezy from the ESE at 13 to 14 mph20 to 23 km/h.
	SundaySep 6	68°F20°C	67°F20°C	0.01 in0.2 mm· —	57%	Partly Cloudy	ESE 12 mph19 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Breezy from the ESE at 12 to 13 mph20 to 20 km/h. NightMostly cloudy, with a low around 67°F20°C. Breezy from the ESE at 11 to 13 mph18 to 21 km/h.
	MondaySep 7	68°F20°C	67°F20°C	0.01 in0.2 mm· 1%	64%	Partly Cloudy	ESE 14 mph23 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Breezy from the ESE at 15 mph23 km/h. NightMostly cloudy, with a low around 67°F20°C. Breezy from the ESE at 13 to 14 mph22 to 23 km/h.
	TuesdaySep 8	68°F20°C	67°F19°C	0.01 in0.3 mm· 2%	71%	Partly Cloudy	ESE 14 mph23 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Breezy from the ESE at 15 mph23 km/h. NightMostly cloudy, with a low around 67°F19°C. Breezy from the ESE at 14 to 15 mph22 to 24 km/h.
	WednesdaySep 9	68°F20°C	67°F20°C	0.02 in0.5 mm· 7%	67%	Partly Cloudy	ESE 16 mph25 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 16 to 17 mph26 to 27 km/h. NightMostly cloudy, with a low around 67°F20°C. Windy from the ESE at 15 to 16 mph24 to 26 km/h.
	ThursdaySep 10	68°F20°C	68°F20°C	0.02 in0.5 mm· 2%	61%	Partly Cloudy	ESE 15 mph24 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Windy from the ESE at 15 to 17 mph25 to 27 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the SE at 14 to 16 mph23 to 26 km/h.
	FridaySep 11	68°F20°C	68°F20°C	0.02 in0.5 mm· 7%	51%	Partly Cloudy	SE 13 mph20 km/h
DayMostly cloudy and warm, with a high of 68°F20°C. Breezy from the SE at 13 to 14 mph20 to 22 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SE at 12 to 13 mph20 to 21 km/h.
	SaturdaySep 12	69°F20°C	68°F20°C	0.01 in0.3 mm· 4%	47%	Partly Cloudy	SE 13 mph21 km/h
DayPartly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 13 to 15 mph21 to 24 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SSE at 13 to 14 mph21 to 23 km/h.
	SundaySep 13	69°F20°C	68°F20°C	0.01 in0.3 mm· 1%	49%	Partly Cloudy	SE 12 mph20 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the SE at 13 to 14 mph21 to 23 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SE at 12 to 14 mph20 to 22 km/h.
	MondaySep 14	69°F20°C	68°F20°C	0.01 in0.2 mm· 1%	50%	Partly Cloudy	SE 13 mph20 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Breezy from the ESE at 13 to 14 mph21 to 22 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SE at 12 to 14 mph20 to 22 km/h.
	TuesdaySep 15	69°F21°C	68°F20°C	0.01 in0.3 mm· 2%	56%	Partly Cloudy	SE 15 mph25 km/h
DayMostly cloudy and warm, with a high of 69°F21°C. Windy from the ESE at 16 mph25 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the SE at 15 to 16 mph24 to 26 km/h.
	WednesdaySep 16	69°F20°C	68°F20°C	0.02 in0.4 mm· 2%	61%	Partly Cloudy	SE 18 mph28 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Windy from the SE at 18 to 19 mph29 to 30 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the SE at 17 to 18 mph28 to 30 km/h.
	ThursdaySep 17	69°F20°C	68°F20°C	0.02 in0.5 mm· 4%	64%	Partly Cloudy	SE 19 mph30 km/h
DayMostly cloudy and warm, with a high of 69°F20°C. Windy from the SE at 19 to 20 mph31 to 32 km/h. NightMostly cloudy, with a low around 68°F20°C. Windy from the SE at 19 mph30 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