WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Saturday, 20-Jun-2026 09:12 pm
 
Tonight

Mostly Clear
Mostly Clear
Sunday

Partly Cloudy
Partly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Mostly Cloudy
Mostly Cloudy
Monday
night
Rain likely
Rain likely
Tuesday

Fog a.m.
Fog a.m.
Tuesday
night
Fog late
Fog late
Wednesday

Partly Cloudy
Partly Cloudy
7 mm. <2 mm.
Low: 8° High: 22° Low: 13° High: 25° Low: 16° High: 26° Low: 15° High: 26°
               
NW→S
calm

Calm
NE
4
mph
Light breeze
NNW→SSE
2→5
mph
Light breeze
SSE
8→4
mph
Gentle breeze
SSE
3
mph
Light air
S→N
4
mph
Light breeze
NW
calm

Calm
NNE
2→6
mph
Light breeze
UV: 6
 High 
UV: 4
 Medium 
UV: 7
 High 
UV: 6
 High 

 

Tonight
 
Fair in the evening, becoming mostly clear after midnight. Cool. Low 8°. Wind northwest near calm in the evening, becoming south after midnight.
Sunday
 
Sunny in the morning, becoming partly cloudy in the afternoon. Mild. High 22°. UV index up to 6. Wind northeast around 4 mph.
Sunday night
 
Fair to partly cloudy in the evening, becoming mostly cloudy after midnight. Low 13°. Wind north-northwest around 2 mph in the evening, becoming south-southeast around 5 mph after midnight.
Monday
 
Mostly cloudy to cloudy in the morning, becoming mostly cloudy in the afternoon. Unusually warm. High 25°. UV index up to 4. Wind south-southeast around 8 mph in the morning, becoming 4 mph in the afternoon.
Monday night
 
Mostly cloudy in the evening, becoming cloudy after midnight. Patchy light fog after midnight. Rain likely. Low 16°. Wind south-southeast around 3 mph. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. Unusually warm. High 26°. UV index up to 7. Wind south around 4 mph in the morning, becoming north in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Partly cloudy. Patchy light fog after midnight. Low 15°. Wind northwest near calm.
Wednesday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Unusually warm. High 26°. UV index up to 6. Wind north-northeast around 2 mph in the morning, becoming 6 mph in the afternoon.
Wednesday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 15°. Wind north-northeast around 3 mph in the evening, becoming east after midnight.
Thursday
 
Partly cloudy. Near record warmth. High 30°. UV index up to 6. Wind east around 9 mph, gusting to 16 mph.
Thursday night
 
Partly cloudy in the evening, becoming fair to partly cloudy after midnight. Breezy and mild. Low 17°. Wind east around 10 mph, gusting to 16 mph, in the evening, becoming 14 mph, gusting to 19 mph, after midnight.
Friday
 
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Near record warmth. High 28°. UV index up to 7. Wind east around 10 mph, gusting to 17 mph, in the morning, becoming west-southwest around 5 mph in the afternoon.
Friday night
 
Partly to mostly cloudy. Patchy light fog after midnight. Low 15°. Wind south near calm in the evening, becoming 5 mph after midnight.

WXSIM forecast formatting script by Saratoga-Weather.org.
Animated forecast icons courtesy of www.meteotreviglio.com.