WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 24-Aug-2026 06:00 pm
 
Tonight

Mostly Cloudy
Mostly Cloudy
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Mostly Cloudy
Mostly Cloudy
Wednesday

Chance rain
Chance rain
Wednesday
night
Fog
Fog
Thursday

Rain likely
Rain likely
Thursday
night
Fog late
Fog late
Friday

Mostly Cloudy
Mostly Cloudy
5 mm. <2 mm. 10 mm. <2 mm. <2 mm.
Low: 14° High: 19° Low: 14° High: 19° Low: 15° High: 17° Low: 15° High: 18°
               
E
10-21→7
mph
Fresh breeze
E
11-21
mph
Fresh breeze
E
12-19→8
mph
Fresh breeze
ESE
10-18
mph
Moderate breeze
ESE
7
mph
Light breeze
ESE→SSE
6
mph
Light breeze
SW
5→9-20
mph
Fresh breeze
SW
15-26
mph
Strong breeze
UV: 3
 Medium 
UV: 3
 Medium 
UV: 2
 Low 
UV: 3
 Medium 

 

Tonight
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. Low 14°. Wind east around 10 mph, gusting to 21 mph, in the evening, becoming 7 mph after midnight.
Tuesday
 
Mostly cloudy to cloudy in the morning, becoming mostly cloudy in the afternoon. High 19°. UV index up to 3. Wind east around 11 mph, gusting to 21 mph.
Tuesday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 14°. Wind east around 12 mph, gusting to 19 mph, in the evening, becoming 8 mph after midnight.
Wednesday
 
Mostly cloudy to cloudy. A chance of rain. High 19°. UV index up to 3. Wind east-southeast around 10 mph, gusting to 18 mph. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. Patchy light fog. A chance of rain. Low 15°. Wind east-southeast around 7 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday
 
Dense overcast in the morning, becoming cloudy in the afternoon. Light to moderate fog. Rain likely in the morning, then a chance of rain in the afternoon. High 17°. UV index up to 2. Wind east-southeast around 6 mph in the morning, becoming south-southeast in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Thursday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Light to moderate fog in the evening, then patchy light fog after midnight. A slight chance of rain. Low 15°. Wind southwest around 5 mph in the evening, becoming 9 mph, gusting to 20 mph, after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday
 
Mostly cloudy to cloudy in the morning, becoming mostly cloudy in the afternoon. A chance of rain. Breezy. High 18°. UV index up to 3. Wind southwest around 15 mph, gusting to 26 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Low 13°. Wind southwest around 9 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Saturday
 
Cloudy. Patchy light fog. A chance of rain. High 15°. UV index up to 2. Wind west around 8 mph in the morning, becoming 3 mph in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Saturday night
 
Mostly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 12°. Wind south around 3 mph in the evening, becoming southwest around 9 mph, gusting to 16 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Sunday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. Patchy light fog. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 16°. UV index up to 2. Wind south-southwest around 10 mph, gusting to 18 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog. Rain likely. Breezy. Low 12°. Wind south-southwest around 12 mph, gusting to 21 mph. 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.