WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Thursday, 03-Sep-2026 09:00 pm
 
Tonight

Rain likely
Rain likely
Friday

Chance rain
Chance rain
Friday
night
Fog late
Fog late
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Chance rain
Chance rain
Sunday
night
Chance rain
Chance rain
Monday

Mostly Cloudy
Mostly Cloudy
15 mm. 2 mm. <2 mm. 5 mm. 2 mm.
Low: 14° High: 16° Low: 12° High: 17° Low: 12° High: 19° Low: 14° High: 17°
               
SW
10-19
mph
Fresh breeze
WSW
16-25
mph
Strong breeze
WSW
15-23
mph
Fresh breeze
WSW
10-18
mph
Moderate breeze
S
6
mph
Light breeze
S
7-16
mph
Moderate breeze
S→W
11-18
mph
Moderate breeze
W
12-22
mph
Fresh breeze
UV: 3
 Medium 
UV: 4
 Medium 
UV: 4
 Medium 
UV: 3
 Medium 

 

Tonight
 
Dense overcast. Patchy light fog. Rain likely. Low 14°. Wind southwest around 10 mph, gusting to 19 mph. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Friday
 
Partly to mostly cloudy in the morning, becoming partly 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. Windy. High 16°. UV index up to 3. Wind west-southwest around 16 mph, gusting to 25 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Friday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Breezy. Low 12°. Wind west-southwest around 15 mph, gusting to 23 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. High 17°. UV index up to 4. Wind west-southwest around 10 mph, gusting to 18 mph.
Saturday night
 
Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 12°. Wind south around 6 mph.
Sunday
 
Cloudy in the morning, becoming mostly 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. High 19°. UV index up to 4. Wind south around 7 mph, gusting to 16 mph. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Sunday night
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 14°. Wind south around 11 mph, gusting to 18 mph, in the evening, becoming west after midnight. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Monday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Breezy. High 17°. UV index up to 3. Wind west around 12 mph, gusting to 22 mph.
Monday night
 
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Breezy. Low 13°. Wind southwest around 13 mph, gusting to 22 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Light to moderate fog. Rain likely. High 16°. UV index up to 2. Wind southwest around 6 mph, gusting to 17 mph, in the morning, becoming east-northeast in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 10 mm.
Tuesday night
 
Mostly cloudy in the evening, becoming cloudy after midnight. Patchy light fog. Rain likely. Breezy. Low 12°. Wind northeast around 13 mph, gusting to 23 mph, in the evening, becoming north after midnight. Chance of precipitation 80 percent. Precipitation mostly between 30 and 50 mm.
Wednesday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. Windy and cool. High 13°. UV index up to 2. Wind north around 17 mph, gusting to 25 mph, in the morning, becoming west-northwest in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Wednesday night
 
Dense overcast. Patchy light fog. Rain likely. Low 11°. Wind west around 11 mph, gusting to 21 mph, in the evening, becoming south-southeast around 7 mph after midnight. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.

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