WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Thursday, 13-Aug-2026 09:00 pm
 
Tonight

Fog late
Fog late
Friday

Fog a.m.
Fog a.m.
Friday
night
Fog late
Fog late
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Fog late
Fog late
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Fog late
Fog late
Monday

Fog a.m.
Fog a.m.
<2 mm. <2 mm. <2 mm.
Low: 17° High: 20° Low: 13° High: 18° Low: 12° High: 19° Low: 14° High: 21°
               
WSW
5
mph
Light breeze
WNW
7-16
mph
Moderate breeze
WNW
8-17
mph
Moderate breeze
WNW
9-18
mph
Moderate breeze
WNW→WSW
4-16
mph
Moderate breeze
W
5
mph
Light breeze
SW
7-15
mph
Moderate breeze
WNW
6
mph
Light breeze
UV: 3
 Medium 
UV: 4
 Medium 
UV: 3
 Medium 
UV: 3
 Medium 

 

Tonight
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Mild. Low 17°. Wind west-southwest around 5 mph.
Friday
 
Cloudy. Patchy light fog in the morning. A chance of rain. High 20°. UV index up to 3. Wind west-northwest around 7 mph, gusting to 16 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 13°. Wind west-northwest around 8 mph, gusting to 17 mph.
Saturday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 18°. UV index up to 4. Wind west-northwest around 9 mph, gusting to 18 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 12°. Wind west-northwest around 4 mph, gusting to 16 mph, in the evening, becoming west-southwest after midnight.
Sunday
 
Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. High 19°. UV index up to 3. Wind west around 5 mph.
Sunday night
 
Mostly cloudy to cloudy. Patchy light fog after midnight. A chance of rain. Low 14°. Wind southwest around 7 mph, gusting to 15 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. High 21°. UV index up to 3. Wind west-northwest around 6 mph.
Monday night
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 15°. Wind south-southwest around 5 mph in the evening, becoming 11 mph, gusting to 16 mph, after midnight.
Tuesday
 
Dense overcast. Patchy light fog in the morning, then light to moderate fog in the afternoon. A chance of rain in the morning, then rain likely in the afternoon. High 19°. UV index up to 3. Wind southwest around 10 mph, gusting to 17 mph. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
Tuesday night
 
Mostly cloudy to cloudy in the evening, becoming partly to mostly cloudy after midnight. Light to moderate fog in the evening, then moderate fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Low 14°. Wind west-southwest around 4 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Wednesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. Moderate fog in the morning, then patchy light fog in the afternoon. A slight chance of rain. High 17°. UV index up to 3. Wind west-southwest around 5 mph in the morning, becoming 10 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Wednesday night
 
Cloudy. Breezy. Low 13°. Wind west-southwest around 12 mph, gusting to 20 mph.

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