WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Sunday, 30-Aug-2026 06:00 am
 
Today

Rain likely
Rain likely
Tonight

Chance rain
Chance rain
Monday

Chance rain
Chance rain
Monday
night
Partly Cloudy
Partly Cloudy
Tuesday

Chance rain
Chance rain
Tuesday
night
Overcast
Overcast
Wednesday

Chance rain
Chance rain
Wednesday
night
Mostly Cloudy
Mostly Cloudy
5 mm. <5 mm. 5 mm. 2 mm. <2 mm. 2 mm. <2 mm.
High: 18° Low: 13° High: 15° Low: 11° High: 17° Low: 13° High: 18° Low: 15°
               
SW
8-17
mph
Moderate breeze
SW
6-17
mph
Moderate breeze
WNW
14-23
mph
Fresh breeze
WNW→SW
7-20
mph
Fresh breeze
SW
10-19
mph
Fresh breeze
SW
12-21
mph
Fresh breeze
WSW
17-24
mph
Fresh breeze
WSW
15-23
mph
Fresh breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 

 

Today
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning, then light to moderate fog in the afternoon. Rain likely. High 18°. UV index up to 2. Wind southwest around 8 mph, gusting to 17 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Tonight
 
Mostly cloudy. Moderate fog in the evening, then light to moderate fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 13°. Wind southwest around 6 mph, gusting to 17 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Monday
 
Cloudy. Patchy light fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. Breezy. High 15°. UV index up to 2. Wind west-northwest around 14 mph, gusting to 23 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Monday night
 
Mostly cloudy in the evening, becoming partly cloudy after midnight. Low 11°. Wind west-northwest around 7 mph, gusting to 20 mph, in the evening, becoming southwest after midnight.
Tuesday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 17°. UV index up to 2. Wind southwest around 10 mph, gusting to 19 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Tuesday night
 
Dense overcast. A slight chance of rain in the evening, then a chance of rain after midnight. Breezy. Low 13°. Wind southwest around 12 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Cloudy. A chance of rain in the morning, then a slight chance of rain in the afternoon. Windy. High 18°. UV index up to 3. Wind west-southwest around 17 mph, gusting to 24 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. A chance of rain. Breezy. Low 15°. Wind west-southwest around 15 mph, gusting to 23 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 18°. 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.
Thursday night
 
Dense overcast in the evening, becoming partly to mostly cloudy after midnight. Rain likely in the evening, then a slight chance of rain after midnight. Windy. Low 12°. Wind west-southwest around 18 mph, gusting to 27 mph, in the evening, becoming 23 mph, gusting to 33 mph, after midnight. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Friday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. A slight chance of rain. Very windy and cool. High 14°. UV index up to 3. Wind west-southwest around 25 mph, gusting to 35 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday night
 
Fair to partly cloudy in the evening, becoming mostly cloudy after midnight. A chance of rain. Windy and cool. Low 11°. Wind west around 20 mph, gusting to 29 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Breezy. High 15°. UV index up to 3. Wind west-northwest around 14 mph, gusting to 22 mph, in the morning, becoming 9 mph, gusting to 19 mph, in the afternoon.
Saturday night
 
Fair in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind southwest around 6 mph.

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