Met Office: Snowdonia: forecast temperature

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Overview for Monday

A dry day, with some hazy sunshine likely to develop and with only light winds, after some mist, fog and low cloud around for a time in the morning.

Hazards	Risk	Explanation
Blizzards	No Risk
Heavy snow	No Risk
Storm force winds	No Risk
Gales	No Risk
Severe chill effect	No Risk
Persistent and extensive hill fog	Low	Patchy fog and low cloud forming overnight may be slow to clear.
Thunderstorms	No Risk
Heavy persistent rain	No Risk

Hazards

Risk

Explanation

Blizzards

No Risk

Heavy snow

No Risk

Storm force winds

No Risk

Gales

No Risk

Severe chill effect

No Risk

Persistent and extensive hill fog

Low

Patchy fog and low cloud forming overnight may be slow to clear.

Thunderstorms

No Risk

Heavy persistent rain

No Risk

Weather summary and probability of precipitation for Monday
Dawn to 0900	0900 to 1200	1200 to 1500	1500 to dusk
Fog	Sunny intervals	Sunny intervals	Cloudy
0%	0%	0%	0%

Weather summary and probability of precipitation for Monday

Dawn to 0900

0900 to 1200

1200 to 1500

1500 to dusk

Fog

Sunny intervals

Cloudy

Detailed mountain weather forecast: Snowdonia

Monday
Tuesday
Outlook

Monday

Weather

Valley mist, fog and low cloud are likely to be quite widespread at first and this is likely to be quite slow to lift, and may persist into the afternoon in places, mainly in the east of the area. A dry day generally then, with some spells of hazy sunshine in places, before more general cloud spreads over from the west later in the afternoon.

Visibility

Poor or very poor at first, with fog patches, this most likely at low levels early in the day, with the fog slowly lifting into low cloud, and breaking up to a large extent allowing visibility to improve to mostly good or very good.

Hill fog

Valley fog lifting into occasional patches around 100 to 400 metres for a time mid to late morning, and then mostly clearing by the afternoon.

Maximum winds above 500m

Southwest 20 to 25 mph by dusk in the west.

Temperature

Valleys	Zero Celsius, rising to an early afternoon maximum of Plus 8 Celsius.
900 m	Plus 3 Celsius.
Freezing level	Above the peaks.

Tuesday

Weather

Cloudy, dull and very misty, with rain or drizzle through the morning and into the early afternoon but probably then dying out.

Visibility

Poor or very poor, becoming moderate or good during the afternoon. Hill fog.

Hill fog

Extensive above 200 to 300 metres.

Maximum winds above 500m

South or south west 30 mph, later northwest 25 mph.

Temperature

Valleys	Plus 5 Celsius, rising to Plus 8 Celsius.
900 m	Plus 3 Celsius.
Freezing level	Above the peaks.

Outlook

Wednesday

A grey rather damp misty morning, with low cloud covering much of the higher ground. Becoming dry and brighter, with the low cloud lifting for the afternoon, but thickening cloud may later bring rain to some western parts around dusk. Light, variable winds but freshening from the southeast later.

Thursday

Sunny intervals and showers, some of which could be heavy in the south and west of the area, and then with more prolonged rain likely to spread from the southwest around dusk. Moderate to fresh south or southwest winds becoming strong to gale south to southeast later.

Friday

Perhaps a dry start but cloudy generally, with rain spreading across the whole area and becoming heavy. The rain will be accompanied by an increasing south to southwest wind which is likely to reach gale or even severe gale force later in the day, along with extensive hill fog.