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 Celsius

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

70.7°F

Partly cloudy · Feels like 70.7°F

Valid at
Modelled conditions, not a station observation.
Remaining sample high70.7°F
Remaining sample low67.5°F
Wind12.1 mph
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°F · Atlantic/St_Helena
6468727621 Oct, 1722 Oct, 0822 Oct, 2323 Oct, 14
Precipitation amountin · Atlantic/St_Helena
0.00.30.71.021 Oct, 1722 Oct, 0822 Oct, 2323 Oct, 14
View all 48 hourly values
46 available hourly values. Missing values are never replaced by zero.
City-local timeTemperatureRain chanceAmountWindGustsHumidity
68.7°FNot available0.00 in12.3 mphNot available66.8%
68.4°FNot available0.00 in11.9 mphNot available69.6%
68.0°FNot available0.00 in11.4 mphNot available71.2%
68.0°FNot available0.00 in11.2 mphNot available72%
67.8°FNot available0.00 in11.9 mphNot available72.4%
67.6°FNot available0.00 in12.3 mphNot available72.4%
67.5°FNot available0.00 in12.3 mphNot available71.9%
67.6°FNot available0.00 in12.5 mphNot available71.3%
67.6°FNot available0.00 in12.8 mphNot available72.6%
67.1°FNot available0.00 in13.2 mphNot available74.5%
66.6°FNot available0.00 in14.1 mphNot available75.3%
66.6°FNot available0.00 in14.3 mphNot available75.4%
66.7°FNot available0.00 in14.8 mphNot available74.4%
66.9°FNot available0.00 in15.0 mphNot available73.8%
67.3°FNot available0.00 in15.0 mphNot available70.5%
68.5°FNot available0.00 in15.2 mphNot available67.6%
69.6°FNot available0.00 in15.4 mphNot available65.1%
70.5°FNot available0.00 in15.2 mphNot available62.8%
72.5°FNot available0.00 in14.3 mphNot available57.2%
73.0°FNot available0.00 in13.4 mphNot available56.5%
73.4°FNot available0.00 in13.4 mphNot available56.6%
72.9°FNot available0.00 in13.0 mphNot available58.4%
72.1°FNot available0.00 in13.2 mphNot available59.7%
71.8°FNot available0.00 in13.2 mphNot available60.9%
70.7°FNot available0.00 in13.4 mphNot available63.9%
69.6°FNot available0.00 in13.4 mphNot available68.7%
69.1°FNot available0.00 in13.2 mphNot available70.7%
68.7°FNot available0.00 in13.2 mphNot available72.2%
68.5°FNot available0.00 in13.9 mphNot available73.1%
68.4°FNot available0.00 in13.9 mphNot available73.9%
68.2°FNot available0.00 in13.4 mphNot available75.3%
68.0°FNot available0.00 in13.2 mphNot available76.6%
67.6°FNot available0.00 in13.6 mphNot available76.9%
67.6°FNot available0.00 in13.4 mphNot available77.2%
67.5°FNot available0.00 in13.0 mphNot available77.8%
67.5°FNot available0.00 in12.8 mphNot available77.2%
67.6°FNot available0.00 in12.5 mphNot available76.7%
67.8°FNot available0.00 in12.1 mphNot available76.6%
68.4°FNot available0.00 in11.9 mphNot available73.7%
70.0°FNot available0.00 in11.6 mphNot available68.9%
72.0°FNot available0.00 in11.6 mphNot available62.4%
72.9°FNot available0.00 in12.5 mphNot available61%
73.2°FNot available0.00 in12.8 mphNot available60.2%
73.6°FNot available0.00 in13.0 mphNot available60.3%
73.2°FNot available0.00 in13.4 mphNot available60.4%
73.6°FNot available0.00 in13.6 mphNot 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: 73.4°F · Forecast low: 66.6°F

Tomorrow's forecast high is 2.7°F 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 span66.6°F to 73.4°FLowest and highest hourly estimate
Largest hourly precipitation amount0.00 inModel hour 21 Oct 2026, 17:00 GMT
Strongest wind signal15.4 mphWind 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 · Today67.5°F / 70.7°FNot availableNot availableNot availableNot availableNot available
2026-10-22 · Tomorrow66.6°F / 73.4°FNot availableNot availableNot availableNot availableNot available
2026-10-2367.5°F / 73.6°FNot availableNot availableNot availableNot availableNot available
2026-10-2467.6°F / 71.6°FNot availableNot availableNot availableNot availableNot available
2026-10-2568.4°F / 72.7°FNot availableNot availableNot availableNot availableNot available
2026-10-2668.2°F / 72.9°FNot availableNot availableNot availableNot availableNot available
2026-10-2767.8°F / 73.8°FNot 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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