WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Wednesday, 10-Jun-2026 06:00 pm
 
Tonight

Fog late
Fog late
Thursday

Rain likely
Rain likely
Thursday
night
Chance rain
Chance rain
Friday

Chance rain
Chance rain
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Mostly Cloudy
Mostly Cloudy
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Mostly Cloudy
Mostly Cloudy
Monday

Mostly Cloudy
Mostly Cloudy
<2 mm. 10 mm. <2 mm. 2 mm.
Low: 9° High: 13° Low: 12° High: 17° Low: 10° High: 15° Low: 9° High: 16° Low: 8° High: 21°
                   
W
8-21
mph
Fresh breeze
SW
10-20→14-21
mph
Fresh breeze
SW
14-21
mph
Fresh breeze
SW
14-23→18-27
mph
Strong breeze
WSW
16-26
mph
Strong breeze
W
16-26
mph
Strong breeze
W
9-21
mph
Fresh breeze
WNW
7-16
mph
Moderate breeze
N→ESE
3
mph
Light air
ESE→WSW
5
mph
Light breeze
UV: 2
 Low 
UV: 5
 Medium 
UV: 5
 Medium 
UV: 3
 Medium 
UV: 6
 High 

 

Tonight
 
Partly to mostly cloudy in the evening, becoming dense overcast after midnight. Patchy light fog after midnight. A chance of rain. Cool. Low 9°. Wind west around 8 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday
 
Dense overcast. Patchy light fog in the morning. Rain likely in the morning, then a chance of rain in the afternoon. Breezy and cool. High 13°. UV index up to 2. Wind southwest around 10 mph, gusting to 20 mph, in the morning, becoming 14 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
Thursday night
 
Dense overcast. A chance of rain in the evening, then a slight chance of rain after midnight. Breezy. Low 12°. Wind southwest around 14 mph, gusting to 21 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Friday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A chance of rain. Windy. High 17°. UV index up to 5. Wind southwest around 14 mph, gusting to 23 mph, in the morning, becoming 18 mph, gusting to 27 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Friday night
 
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Windy. Low 10°. Wind west-southwest around 16 mph, gusting to 26 mph.
Saturday
 
Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Windy. High 15°. UV index up to 5. Wind west around 16 mph, gusting to 26 mph.
Saturday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Cool. Low 9°. Wind west around 9 mph, gusting to 21 mph.
Sunday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. High 16°. UV index up to 3. Wind west-northwest around 7 mph, gusting to 16 mph.
Sunday night
 
Partly to mostly cloudy in the evening, becoming clear after midnight. Cool. Low 8°. Wind north around 3 mph in the evening, becoming east-southeast after midnight.
Monday
 
Mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. Mild. High 21°. UV index up to 6. Wind east-southeast around 5 mph in the morning, becoming west-southwest in the afternoon.
Monday night
 
Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 11°. Wind east-southeast around 5 mph in the evening, becoming 8 mph after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. High 20°. UV index up to 4. Wind south-southeast around 5 mph in the morning, becoming west in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A chance of rain after midnight. Low 12°. Wind south-southwest around 6 mph in the evening, becoming 10 mph, gusting to 18 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.

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