Get the forecast for today, tonight & tomorrow's weather for Caernarfon, Gwynedd, United Kingdom. The UK Met Office Weather Observation Website (WOW). 14 day weather in Caernarfon. Met Office weather radar, satellite and synoptic charts. 14-day weather forecast for Waunfawr. Sunday looks to be breezy, with a few showers at first, before more persistent rain for some in the afternoon. Outlook for Sunday to Tuesday. All times are GMT (Europe/London, GMT +0000) unless otherwise stated. Outlook for Sunday to Tuesday. About Our Weather Forecast For Caernarfon. Know what's coming with AccuWeather's extended daily forecasts for Caernarfon, Gwynedd, United Kingdom. Outlook for Sunday to Tuesday. 4 hours agoLast updated 4 hours ago Updated Monday to Friday only Tonight, it will become cloudier from the west with more prolonged outbreaks of rain developing, some heavy. Up to 90 days of daily highs, lows, and precipitation chances. 3 hours agoLast updated 3 hours ago Updated Monday to Friday only Turning quite chilly tonight with clear periods developing for a time, together with a few further showers. Caernarfon - Weather warnings issued 14-day forecast. The 7 day weather forecast summary for Caernarfon: The forecast for Caernarfon in the coming week is predicting the average daytime maximum temperature will be around 6°C, with a high for the week of 10°C expected on the afternoon of Tuesday 2nd. Sunday looks to be breezy, with a few showers at first, before more persistent rain for some in the afternoon. Sunday looks to be breezy, with a few showers at first, before more persistent rain for some in the afternoon. 14-day weather forecast for Caernarfon Airport. ... Met Office; BBC Weather in association with MeteoGroup. 14-day weather forecast for Llanrug. Always up-to-date. Our weather forecast for Caernarfon is updated throughout the day and has been found to be very reliable for planning activities such as days out, leisure, travel, events, fishing, golf and gardening. WOW allows anyone to submit their own weather data, anywhere in the world. Current conditions, warnings and historical records Caernarfon Weather Forecast, Gwynedd LL55 1 - WillyWeather Animated forecast maps with rain, wind, satellite and temperatures. See a list of all of the Official Weather Advisories, Warnings, and Severe Weather Alerts for Caernarfon, Gwynedd, United Kingdom.