Current Conditions

Merthyr Tydfil, Wales

61°F16°C
Drizzle

Wind

WSW 12 mph19 km/h

Humidity

93%

Cloud Cover

100%

As of Thursday, September 3, 2026 at 5:52 AM GMT+1

Today's Outlook

Day

Overcast and mild, with a high of 67°F20°C and morning low of 61°F16°C. Windy from the WSW at 14 to 16 mph23 to 26 km/h. 34% chance of drizzle throughout the day.

Night

Overcast, with a low around 62°F17°C. Breezy from the WSW at 14 to 15 mph22 to 23 km/h. 35% chance of drizzle overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 67°F20°CLow 61°F16°CPrecip 0.04 in1 mm35%Cloud 95%Wind WSW 14 mph22 km/hThursday: Overcast and mild, with a high of 67°F20°C and morning low of 61°F16°C. Windy from the WSW at 14 to 16 mph23 to 26 km/h. 34% chance of drizzle throughout the day. Thursday Night: Overcast, with a low around 62°F17°C. Breezy from the WSW at 14 to 15 mph22 to 23 km/h. 35% chance of drizzle overnight.
Light RainHigh 64°F18°CLow 56°F13°CPrecip 0.11 in2.9 mm92%Cloud 82%Wind W 14 mph23 km/hFriday: Overcast and mild, with a high of 63°F17°C. Breezy from the W at 14 to 15 mph22 to 24 km/h. 92% chance of light rain in the morning. Friday Night: Mostly cloudy, with a low around 56°F13°C. Windy from the WSW at 15 to 19 mph23 to 30 km/h. 87% chance of showers overnight.
Partly CloudyHigh 65°F18°CLow 51°F11°CPrecip 0 in0.1 mm2%Cloud 52%Wind W 6 mph10 km/hSaturday: Mostly cloudy and mild, with a high of 65°F18°C and morning low of 51°F11°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. Saturday Night: Partly cloudy, with a low around 53°F12°C. Breezy from the W at 6 to 8 mph9 to 13 km/h.
DrizzleHigh 73°F23°CLow 55°F13°CPrecip 0.02 in0.5 mm10%Cloud 60%Wind S 7 mph12 km/hSunday: Mostly cloudy and warm, with a high of 73°F23°C and morning low of 55°F13°C. Breezy from the S at 9 to 11 mph14 to 18 km/h. Sunday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the SSW at 6 to 8 mph9 to 13 km/h. 10% chance of drizzle before dawn.
DrizzleHigh 65°F19°CLow 58°F14°CPrecip 0.03 in0.8 mm23%Cloud 92%Wind WSW 9 mph14 km/hMonday: Overcast and mild, with a high of 65°F19°C and morning low of 60°F16°C. Breezy from the WSW at 9 to 11 mph15 to 18 km/h. 17% chance of drizzle around midday. Monday Night: Overcast, with a low around 58°F14°C. Breezy from the WSW at 8 to 10 mph13 to 15 km/h. 23% chance of drizzle overnight.
RainHigh 61°F16°CLow 54°F12°CPrecip 0.45 in11.4 mm66%Cloud 69%Wind WSW 13 mph22 km/hTuesday: Mostly cloudy and mild, with a high of 61°F16°C. Windy from the WSW at 15 to 16 mph24 to 26 km/h. 64% chance of rain throughout the day. Tuesday Night: Mostly cloudy, with a low around 54°F12°C. Breezy from the WSW at 12 to 14 mph20 to 22 km/h. 66% chance of showers throughout the night.
DrizzleHigh 60°F15°CLow 51°F10°CPrecip 0.05 in1.3 mm30%Cloud 60%Wind W 12 mph19 km/hWednesday: Mostly cloudy and mild, with a high of 60°F15°C and morning low of 51°F10°C. Breezy from the WNW at 13 to 14 mph21 to 23 km/h. 30% chance of drizzle throughout the day. Dry air. Wednesday Night: Mostly cloudy, with a low around 51°F11°C. Breezy from the W at 10 to 12 mph16 to 20 km/h. 16% chance of drizzle overnight.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 367°F20°C61°F16°C0.04 in1 mm· 35%95%DrizzleWSW 14 mph22 km/h
FridaySep 464°F18°C56°F13°C0.11 in2.9 mm· 92%82%Light RainW 14 mph23 km/h
SaturdaySep 565°F18°C51°F11°C0 in0.1 mm· 2%52%Partly CloudyW 6 mph10 km/h
SundaySep 673°F23°C55°F13°C0.02 in0.5 mm· 10%60%DrizzleS 7 mph12 km/h
MondaySep 765°F19°C58°F14°C0.03 in0.8 mm· 23%92%DrizzleWSW 9 mph14 km/h
TuesdaySep 861°F16°C54°F12°C0.45 in11.4 mm· 66%69%RainWSW 13 mph22 km/h
WednesdaySep 960°F15°C51°F10°C0.05 in1.3 mm· 30%60%DrizzleW 12 mph19 km/h
ThursdaySep 1061°F16°C51°F10°C0.07 in1.8 mm· 41%80%DrizzleSW 8 mph12 km/h
FridaySep 1162°F17°C54°F12°C0.18 in4.6 mm· 53%77%Light RainWSW 9 mph14 km/h
SaturdaySep 1262°F17°C53°F12°C0.09 in2.3 mm· 27%71%DrizzleWNW 9 mph15 km/h
SundaySep 1363°F17°C52°F11°C0.07 in1.8 mm· 28%74%DrizzleW 8 mph12 km/h
MondaySep 1464°F18°C53°F12°C0.07 in1.9 mm· 22%74%DrizzleW 7 mph12 km/h
TuesdaySep 1564°F18°C52°F11°C0.05 in1.3 mm· 21%68%DrizzleW 7 mph12 km/h
WednesdaySep 1664°F18°C53°F12°C0.05 in1.3 mm· 19%67%DrizzleWNW 7 mph11 km/h
ThursdaySep 1764°F18°C53°F11°C0.06 in1.5 mm· 20%68%DrizzleW 8 mph12 km/h

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About This Forecast

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