Guernsey forecast issued 27 May 2017 02:00 Today18°C11°CF4Sunday20°C12°CF4Monday20°CF3Tuesday19°CF3Wednesday20°CF2Thursday18°CF2 Today18°C F4 Forecast valid from 3 am today to 6 am tomorrowMax18°CMin11°CMostly cloudy with some fog patches at times. Sunny intervals in the afternoon. Becoming mainly fair overnight. UV Index: 6Moderate to poor, locally very poor. F4Southwest mainly moderate F4, veering west light F2 to moderate F4 early afternoon, then northwest this evening and northeast by Sunday morning.Slight, occasionally moderate, with a low swell.Sunday20°CF4 Forecast valid from 6 am Sunday to 6 am MondayMax20°CMin12°CFair with sunny periods. Isolated thundery showers developing in the afternoon with a risk of fog patches. UV Index: 7 F4Northeast to east light F2 to moderate F4, perhaps fresh F5 at times in the morning, becoming variable overnight.Monday20°CF3 Forecast valid 6 am to 6 pm MondayMax20°CFair with sunny periodsUV Index: 7 F3West F3Tuesday19°CF3 Forecast valid 6 am to 6 pm TuesdayMax19°CFair with sunny periodsUV Index: 7 F3West Southwest F3Wednesday20°CF2 Forecast valid 6 am to 6 pm WednesdayMax20°CFair with sunny periodsUV Index: 7 F2Northwest F2Thursday18°CF2 Forecast valid 6 am to 6 pm ThursdayMax18°CFair with sunny periodsUV Index: 7 F2West F2View weather for Jersey SettingsWind speed Beaufort forceTemperature °Celsius Wind speed Beaufort force Miles per hour Kilometres per hour Knots Temperature °Celsius °Fahrenheit Tide times - St Helier Weather radar Aviation forecast Shipping forecast Latest satellite image Runway webcam – Jersey Tide times - St Helier Weather radar Aviation forecast Shipping forecast Latest satellite image Runway webcam – Jersey Page ContentIf you prefer a text-only forecast, m.gov.je has a layout ideal for your smartphone.