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

Chance rain
Chance rain
Monday

Fog a.m.
Fog a.m.
Monday
night
Partly Cloudy
Partly Cloudy
Tuesday

Partly Cloudy
Partly Cloudy
Tuesday
night
Mostly Cloudy
Mostly Cloudy
Wednesday

Partly Cloudy
Partly Cloudy
Wednesday
night
Mostly Clear
Mostly Clear
Thursday

Partly Cloudy
Partly Cloudy
Thursday
night
Mostly Cloudy
Mostly Cloudy
Friday

Mostly Cloudy
Mostly Cloudy
2 mm. <2 mm. <2 mm. <2 mm.
Low: 13° High: 19° Low: 12° High: 24° Low: 14° High: 26° Low: 12° High: 26° Low: 16° High: 21°
                   
WNW
7-16
mph
Moderate breeze
NNW
6-16
mph
Moderate breeze
N→SSE
3
mph
Light air
SSE
5
mph
Light breeze
NNE→S
2
mph
Light air
S→N
4
mph
Light breeze
ENE→S
2
mph
Light air
SSE→NE
3
mph
Light air
SE→S
4
mph
Light breeze
W→NW
8-19
mph
Fresh breeze
UV: 5
 Medium 
UV: 5
 Medium 
UV: 5
 Medium 
UV: 5
 Medium 
UV: 4
 Medium 

 

Tonight
 
Cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Low 13°. Wind west-northwest around 7 mph, gusting to 16 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Monday
 
Partly to mostly cloudy. Patchy light fog in the morning. High 19°. UV index up to 5. Wind north-northwest around 6 mph, gusting to 16 mph.
Monday night
 
Partly cloudy. Low 12°. Wind north around 3 mph in the evening, becoming south-southeast after midnight.
Tuesday
 
Partly cloudy. Warm. High 24°. UV index up to 5. Wind south-southeast around 5 mph.
Tuesday night
 
Partly to mostly cloudy. Low 14°. Wind north-northeast around 2 mph in the evening, becoming south after midnight.
Wednesday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Unusually warm. High 26°. UV index up to 5. Wind south around 4 mph in the morning, becoming north in the afternoon.
Wednesday night
 
Mostly clear. Low 12°. Wind east-northeast around 2 mph in the evening, becoming south after midnight.
Thursday
 
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. A slight chance of rain in the afternoon. Unusually warm. High 26°. UV index up to 5. Wind south-southeast around 3 mph in the morning, becoming northeast in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. A slight chance of rain after midnight. Low 16°. Wind southeast around 4 mph in the evening, becoming south after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain. Mild. High 21°. UV index up to 4. Wind west around 8 mph, gusting to 19 mph, in the morning, becoming northwest in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A slight chance of rain after midnight. Low 13°. Wind northwest around 7 mph, gusting to 17 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday
 
Mostly cloudy to cloudy. Patchy light fog in the morning. A chance of rain. High 17°. UV index up to 4. Wind northwest around 8 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Partly cloudy in the evening, becoming mostly clear after midnight. Patchy light fog after midnight. Low 11°. Wind northwest around 9 mph, gusting to 17 mph.

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