Current Conditions

Merthyr Tydfil, Wales

67°F20°C
Partly Cloudy

Wind

N 2 mph3 km/h

Humidity

61%

Cloud Cover

94%

As of Friday, July 24, 2026 at 9:06 AM GMT+1

Today's Outlook

Day

Mostly cloudy and warm, with a high of 76°F25°C and morning low of 58°F15°C. Breezy from the WNW at 4 to 7 mph7 to 11 km/h.

Night

Mostly clear, with a low around 63°F17°C. Breezy from the NW at 8 to 9 mph12 to 15 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24Partly CloudyHigh 76°F25°CLow 58°F15°CPrecip 0 in0 mmCloud 56%Wind NW 5 mph9 km/hFriday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 58°F15°C. Breezy from the WNW at 4 to 7 mph7 to 11 km/h. Friday Night: Mostly clear, with a low around 63°F17°C. Breezy from the NW at 8 to 9 mph12 to 15 km/h.
SaturdayJul 25Partly CloudyHigh 72°F22°CLow 53°F12°CPrecip 0 in0 mmCloud 54%Wind W 9 mph15 km/hSaturday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 58°F14°C. Breezy from the W at 11 to 15 mph17 to 25 km/h. Saturday Night: Mostly cloudy, with a low around 53°F12°C. Breezy from the W at 8 to 13 mph12 to 21 km/h.
SundayJul 26DrizzleHigh 67°F20°CLow 61°F16°CPrecip 0.02 in0.5 mm19%Cloud 84%Wind WNW 12 mph19 km/hSunday: Overcast and mild, with a high of 67°F20°C and morning low of 62°F17°C. Breezy from the WNW at 13 to 14 mph21 to 23 km/h. 19% chance of drizzle around midday. Sunday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the W at 10 to 13 mph17 to 21 km/h.
MondayJul 27Partly CloudyHigh 71°F21°CLow 57°F14°CPrecip 0 in0.1 mm4%Cloud 57%Wind W 9 mph15 km/hMonday: Mostly cloudy and warm, with a high of 71°F21°C and morning low of 58°F14°C. Breezy from the W at 10 to 12 mph16 to 19 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Breezy from the W at 9 to 11 mph14 to 18 km/h.
TuesdayJul 28DrizzleHigh 73°F23°CLow 61°F16°CPrecip 0.02 in0.4 mm13%Cloud 72%Wind WSW 8 mph13 km/hTuesday: Overcast and warm, with a high of 73°F23°C and morning low of 62°F17°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 13% chance of drizzle around midday. Tuesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the WSW at 7 to 8 mph11 to 12 km/h.
WednesdayJul 29DrizzleHigh 75°F24°CLow 59°F15°CPrecip 0.01 in0.2 mm11%Cloud 54%Wind WSW 6 mph10 km/hWednesday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the WSW at 7 to 9 mph11 to 14 km/h. 11% chance of drizzle. Wednesday Night: Partly cloudy, with a low around 59°F15°C. Breezy from the WSW at 6 to 8 mph9 to 13 km/h.
ThursdayJul 30DrizzleHigh 75°F24°CLow 58°F15°CPrecip 0.03 in0.7 mm13%Cloud 72%Wind SW 7 mph11 km/hThursday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the SW at 7 to 9 mph12 to 15 km/h. 13% chance of drizzle around midday. Thursday Night: Mostly cloudy, with a low around 58°F15°C. Breezy from the WSW at 6 to 9 mph10 to 14 km/h. 13% chance of drizzle in the evening.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 51.7479°N, 3.3778°W·Elevation: 186m·Timezone: Europe/London·Population: 43,820