Porthmadog Weather - Extended Forecast

Regional Forecast

Friday

A chilly start with sleet and snow showers. These easing through the afternoon to leave some bright or sunny spells. Winds turning lighter for a time. Maximum temperature 9°C.

Outlook For Saturday To Monday

Wet and windy on Saturday with heavy persistent rain, sleet and some hill snow. Drier overall on Sunday but often cloudy with further rain on Monday. Milder.

Daily Forecast

Thursday

Partly cloudy

Partly cloudy

High: 4°C
(39°F)

Wind: NW at 2 mph (3 km/h)

Humidity: 73%%

40%% chance of showers

Thursday Night

Light rain

Light rain

Low: 1°C
(34°F)

Wind: WNW at 20 mph (32 km/h)

Humidity: 72%%

75%% chance of showers

Friday

Light rain

Light rain

High: 6°C
(43°F)

Wind: N at 9 mph (14 km/h)

Humidity: 82%%

55%% chance of showers

Friday Night

Light rain

Light rain

Low: 3°C
(37°F)

Wind: SE at 11 mph (18 km/h)

Humidity: 81%%

100%% chance of showers

Saturday

Heavy rain

Heavy rain

High: 14°C
(57°F)

Wind: S at 31 mph (50 km/h)

Humidity: 92%%

100%% chance of showers

Saturday Night

Heavy rain shower

Heavy rain shower

Low: 12°C
(54°F)

Wind: SSW at 31 mph (50 km/h)

Humidity: 92%%

70%% chance of showers

Sunday

Partly cloudy

Partly cloudy

High: 13°C
(55°F)

Wind: SSW at 29 mph (47 km/h)

Humidity: 73%%

35%% chance of showers

Sunday Night

Partly cloudy

Partly cloudy

Low: 10°C
(50°F)

Wind: SW at 29 mph (47 km/h)

Humidity: 75%%

30%% chance of showers

Monday

Partly cloudy

Partly cloudy

High: 10°C
(50°F)

Wind: WSW at 25 mph (40 km/h)

Humidity: 73%%

35%% chance of showers

Monday Night

Cloudy

Cloudy

Low: 8°C
(46°F)

Wind: W at 20 mph (32 km/h)

Humidity: 75%%

10%% chance of showers