WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 25-May-2026 06:00 pm
 
Tonight

Mostly Clear
Mostly Clear
Tuesday

Sunny
Sunny
Tuesday
night
Partly Cloudy
Partly Cloudy
Wednesday

Mostly Cloudy
Mostly Cloudy
Wednesday
night
Chance rain
Chance rain
Thursday

Chance rain
Chance rain
Thursday
night
Fog late
Fog late
Friday

Fog a.m.
Fog a.m.
2 mm. <5 mm.
Low: 13° High: 26° Low: 13° High: 23° Low: 13° High: 21° Low: 11° High: 17°
               
ENE→SSE
2-15
mph
Moderate breeze
NNE
4
mph
Light breeze
NW→SE
3
mph
Light air
SE
11-21
mph
Fresh breeze
SE
11-20
mph
Fresh breeze
SE→SSW
10-18
mph
Moderate breeze
SW
11-20
mph
Fresh breeze
SW
8-15
mph
Moderate breeze
UV: 6
 High 
UV: 5
 Medium 
UV: 4
 Medium 
UV: 4
 Medium 

 

Tonight
 
Fair in the evening, becoming mostly clear after midnight. Low 13°. Wind east-northeast around 2 mph, gusting to 15 mph, in the evening, becoming south-southeast after midnight.
Tuesday
 
Sunny. Unusually warm. High 26°. UV index up to 6. Wind north-northeast around 4 mph.
Tuesday night
 
Clear in the evening, becoming partly cloudy after midnight. Low 13°. Wind northwest around 3 mph in the evening, becoming southeast after midnight.
Wednesday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Breezy and unusually warm. High 23°. UV index up to 5. Wind southeast around 11 mph, gusting to 21 mph.
Wednesday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. A chance of rain after midnight. Breezy. Low 13°. Wind southeast around 11 mph, gusting to 20 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Thursday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. Mild. High 21°. UV index up to 4. Wind southeast around 10 mph, gusting to 18 mph, in the morning, becoming south-southwest in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Thursday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. Breezy. Low 11°. Wind southwest around 11 mph, gusting to 20 mph.
Friday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. High 17°. UV index up to 4. Wind southwest around 8 mph, gusting to 15 mph.
Friday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 10°. Wind southwest around 6 mph.
Saturday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. High 18°. UV index up to 3. Wind south around 5 mph in the morning, becoming west-southwest in the afternoon.
Saturday night
 
Mostly cloudy to cloudy. Patchy light fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Low 11°. Wind west-southwest around 7 mph, gusting to 17 mph, in the evening, becoming 10 mph, gusting to 17 mph, after midnight. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday
 
Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 16°. UV index up to 6. Wind west-southwest around 10 mph, gusting to 18 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Sunday night
 
Mostly cloudy in the evening, becoming dense overcast after midnight. Patchy light fog. A chance of rain. Low 12°. Wind south-southwest around 8 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.

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