FORECASTS / REPORTING / WORLD WEATHERIndependent editorial review · Asia/Tbilisi

Jamestown Weather Now, Saint Helena

Current model conditions, today's hourly weather and a seven-day forecast inJamestown's local time.

Use Fahrenheit

Local city time: · Atlantic/St_Helena

Weather todayHourly forecastTomorrow's forecastNext 24 hours7-day forecastData sources
Current model estimate · 2026-10-21

Jamestown temperature today

21.5°C

Partly cloudy · Feels like 21.5°C

Valid at
Modelled conditions, not a station observation.
Remaining sample high21.5°C
Remaining sample low19.7°C
Wind19.4 km/h
Wind gustsNot available
Rain probabilityNot available
Precipitation amountNot available

Hourly forecast

Next available hours · Atlantic/St_Helena. Repeated local hours include their timezone offset.

Temperature°C · Atlantic/St_Helena
1720232621 Oct, 1622 Oct, 0722 Oct, 2223 Oct, 14
Precipitation amountmm · Atlantic/St_Helena
0.00.30.71.021 Oct, 1622 Oct, 0722 Oct, 2223 Oct, 14
View all 48 hourly values
47 available hourly values. Missing values are never replaced by zero.
City-local timeTemperatureRain chanceAmountWindGustsHumidity
21.0°CNot available0.0 mm19.8 km/hNot available64.9%
20.4°CNot available0.0 mm19.8 km/hNot available66.8%
20.2°CNot available0.0 mm19.1 km/hNot available69.6%
20.0°CNot available0.0 mm18.4 km/hNot available71.2%
20.0°CNot available0.0 mm18.0 km/hNot available72%
19.9°CNot available0.0 mm19.1 km/hNot available72.4%
19.8°CNot available0.0 mm19.8 km/hNot available72.4%
19.7°CNot available0.0 mm19.8 km/hNot available71.9%
19.8°CNot available0.0 mm20.2 km/hNot available71.3%
19.8°CNot available0.0 mm20.5 km/hNot available72.6%
19.5°CNot available0.0 mm21.2 km/hNot available74.5%
19.2°CNot available0.0 mm22.7 km/hNot available75.3%
19.2°CNot available0.0 mm23.0 km/hNot available75.4%
19.3°CNot available0.0 mm23.8 km/hNot available74.4%
19.4°CNot available0.0 mm24.1 km/hNot available73.8%
19.6°CNot available0.0 mm24.1 km/hNot available70.5%
20.3°CNot available0.0 mm24.5 km/hNot available67.6%
20.9°CNot available0.0 mm24.8 km/hNot available65.1%
21.4°CNot available0.0 mm24.5 km/hNot available62.8%
22.5°CNot available0.0 mm23.0 km/hNot available57.2%
22.8°CNot available0.0 mm21.6 km/hNot available56.5%
23.0°CNot available0.0 mm21.6 km/hNot available56.6%
22.7°CNot available0.0 mm20.9 km/hNot available58.4%
22.3°CNot available0.0 mm21.2 km/hNot available59.7%
22.1°CNot available0.0 mm21.2 km/hNot available60.9%
21.5°CNot available0.0 mm21.6 km/hNot available63.9%
20.9°CNot available0.0 mm21.6 km/hNot available68.7%
20.6°CNot available0.0 mm21.2 km/hNot available70.7%
20.4°CNot available0.0 mm21.2 km/hNot available72.2%
20.3°CNot available0.0 mm22.3 km/hNot available73.1%
20.2°CNot available0.0 mm22.3 km/hNot available73.9%
20.1°CNot available0.0 mm21.6 km/hNot available75.3%
20.0°CNot available0.0 mm21.2 km/hNot available76.6%
19.8°CNot available0.0 mm22.0 km/hNot available76.9%
19.8°CNot available0.0 mm21.6 km/hNot available77.2%
19.7°CNot available0.0 mm20.9 km/hNot available77.8%
19.7°CNot available0.0 mm20.5 km/hNot available77.2%
19.8°CNot available0.0 mm20.2 km/hNot available76.7%
19.9°CNot available0.0 mm19.4 km/hNot available76.6%
20.2°CNot available0.0 mm19.1 km/hNot available73.7%
21.1°CNot available0.0 mm18.7 km/hNot available68.9%
22.2°CNot available0.0 mm18.7 km/hNot available62.4%
22.7°CNot available0.0 mm20.2 km/hNot available61%
22.9°CNot available0.0 mm20.5 km/hNot available60.2%
23.1°CNot available0.0 mm20.9 km/hNot available60.3%
22.9°CNot available0.0 mm21.6 km/hNot available60.4%
23.1°CNot available0.0 mm22.0 km/hNot available57.7%

These figures compare available forecast samples, not full-day extrema. Today's earlier hours are not included.

Tomorrow's forecast · 2026-10-22

Forecast high: 23.0°C · Forecast low: 19.2°C

Tomorrow's forecast high is 1.5°C higher than today's forecast high. This compares forecasts from one snapshot, not observed records.

Planning window

Next 24 hours at a glance

Atlantic/St_Helena

Calculated from 24 validated hourly model values in this snapshot. These are forecast signals, not observations or weather warnings.

Temperature span19.2°C to 23.0°CLowest and highest hourly estimate
Largest hourly precipitation amount0.0 mmModel hour 21 Oct 2026, 16:00 GMT
Strongest wind signal24.8 km/hWind at 22 Oct 2026, 09:00 GMT
Humidity range56.5% to 75.4%Across available hourly values

7-day forecast

Ranges of available forecast samples by city-local day; today covers remaining hours. These are not official daily extrema. Missing totals and probabilities are not estimated.
Local dateLow / HighRain chanceAmountSunriseSunsetUV index
2026-10-21 · Today19.7°C / 21.5°CNot availableNot availableNot availableNot availableNot available
2026-10-22 · Tomorrow19.2°C / 23.0°CNot availableNot availableNot availableNot availableNot available
2026-10-2319.7°C / 23.1°CNot availableNot availableNot availableNot availableNot available
2026-10-2419.8°C / 22.0°CNot availableNot availableNot availableNot availableNot available
2026-10-2520.2°C / 22.6°CNot availableNot availableNot availableNot availableNot available
2026-10-2620.1°C / 22.7°CNot availableNot availableNot availableNot availableNot available
2026-10-2719.9°C / 23.2°CNot availableNot availableNot availableNot availableNot available

Daily low/high values are ranges of available forecast samples, not official daily extrema. Today covers the remaining forecast hours.

Missing precipitation probabilities and local-day totals are unavailable, never inferred from market prices.

Provider time is the product update timestamp, not the underlying model run.

Data sources & methodology

Weather data from MET Norway (CC BY 4.0). Wind units converted; local-day sampled temperature ranges calculated by this site.MET Norway · Data licence · Location: GeoNames

Product: MET Norway Locationforecast — global numerical model forecast. Provider model issue time: 21 Oct 2026, 13:18 GMT. Retrieved: .

Requested coordinates: -15.92488, -5.71816. Returned model grid: -15.9248, -5.7181. Forecasts can change; they are not official warnings. Warning feed: not connected.

How validation, units and delayed updates work →

Related reporting

No reviewed reporting for this city has been published yet.

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