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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Media Grid UK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Based on the live forecast above, expect temperatures in Merthyr Tydfil to range between 8°C and 14°C today, with a 60% chance of light rain by mid-afternoon. Check the hourly breakdown for precise timing of any showers.
What is the Met Office forecast for Merthyr Tydfil today?
The Met Office data for Merthyr shows a largely cloudy start, with highs near 14°C and a moderate south-westerly breeze. Rain is most likely between 2pm and 5pm, clearing to drier conditions by evening. Overnight lows will drop to around 6°C.
Will the weather in Merthyr Tydfil be dry tomorrow?
Tomorrow brings a 40% chance of light drizzle in the morning, becoming mostly dry by noon. The weather in Merthyr Tydfil tomorrow will see highs of 13°C with increasing cloud cover from the west.
How does the 10-day outlook look for Merthyr?
The weather in Merthyr Tydfil 10 days ahead suggests a settled pattern: temperatures near 12–15°C with occasional rain bands. For the weather in Merthyr Tydfil next 14 days and weather in Merthyr Tydfil next 21 days, longer-range models indicate a mild but unsettled period with no extreme conditions expected.
Is BBC Weather Merthyr Tydfil the same as the Met Office data?
BBC Weather uses Met Office data for its Merthyr Tydfil forecasts, so readings are broadly consistent. However, the Met Office provides more granular hourly breakdowns and regional warnings, making it the preferred source for live updates.
What should I wear for Merthyr Tydfil weather today?
With highs of 14°C and a brisk south-westerly wind, a light waterproof jacket is advisable. Rain is likely mid-afternoon, so carry a hood or umbrella if you plan to be outdoors.
When is the best time to travel through Merthyr this week?
Mornings are generally drier than afternoons all week. For the weather in Merthyr Tydfil tomorrow, aim to travel before 11am to avoid the 40% chance of drizzle.
Sources
For broader conditions, visit our UK weather hub or check the 10 Day Weather Forecast UK for Merthyr and surrounding areas.