WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Saturday, 29-Aug-2026 06:00 pm
 
Tonight

Chance rain
Chance rain
Sunday

Rain likely
Rain likely
Sunday
night
Chance rain
Chance rain
Monday

Chance rain
Chance rain
Monday
night
Fog late
Fog late
Tuesday

Chance rain
Chance rain
Tuesday
night
Chance rain
Chance rain
Wednesday

Rain likely
Rain likely
<5 mm. 7 mm. 2 mm. 5 mm. <2 mm. 2 mm. <2 mm. 5 mm.
Low: 13° High: 16° Low: 12° High: 14° Low: 11° High: 16° Low: 13° High: 17°
               
NW→SW
4
mph
Light breeze
SSW
8-16
mph
Moderate breeze
S→WSW
9-18
mph
Moderate breeze
WNW
15-24
mph
Fresh breeze
WNW→WSW
9-20
mph
Fresh breeze
WSW
11-19
mph
Fresh breeze
WSW
12-20
mph
Fresh breeze
SW
16-24→20-28
mph
Strong breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 
UV: 3
 Medium 

 

Tonight
 
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 13°. Wind northwest around 4 mph in the evening, becoming southwest after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Sunday
 
Mostly cloudy in the morning, becoming dense overcast in the afternoon. Moderate 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 16°. UV index up to 2. Wind south-southwest around 8 mph, gusting to 16 mph. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
Sunday night
 
Mostly cloudy. Light to moderate fog in the evening, then patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 12°. Wind south around 9 mph, gusting to 18 mph, in the evening, becoming west-southwest after midnight. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. Breezy. High 14°. UV index up to 2. Wind west-northwest around 15 mph, gusting to 24 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Monday night
 
Dense overcast in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 11°. Wind west-northwest around 9 mph, gusting to 20 mph, in the evening, becoming west-southwest after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 16°. UV index up to 3. Wind west-southwest around 11 mph, gusting to 19 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Tuesday night
 
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Breezy. Low 13°. Wind west-southwest around 12 mph, gusting to 20 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Rain likely. Windy. High 17°. UV index up to 3. Wind southwest around 16 mph, gusting to 24 mph, in the morning, becoming 20 mph, gusting to 28 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Mostly cloudy to cloudy. A slight chance of rain. Windy. Low 16°. Wind southwest around 19 mph, gusting to 27 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday
 
Partly to mostly sunny in the morning, becoming mostly sunny in the afternoon. Windy. High 18°. UV index up to 4. Wind southwest around 22 mph, gusting to 32 mph.
Thursday night
 
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Very windy and cool. Low 11°. Wind west-southwest around 23 mph, gusting to 34 mph, in the evening, becoming 26 mph, gusting to 35 mph, after midnight.
Friday
 
Mostly cloudy to cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Windy and cool. High 13°. UV index up to 3. Wind west around 25 mph, gusting to 34 mph, in the morning, becoming 18 mph, gusting to 30 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Friday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. A chance of rain. Breezy and cool. Low 10°. Wind west-southwest around 12 mph, gusting to 19 mph. 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.