WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Wednesday, 23-Sep-2026 03:00 pm
 
This
afternoon
Partly Cloudy
Partly Cloudy
Tonight

Fog late
Fog late
Thursday

Fog a.m.
Fog a.m.
Thursday
night
Mostly Cloudy
Mostly Cloudy
Friday

Chance rain
Chance rain
Friday
night
Chance rain
Chance rain
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Fog late
Fog late
2 mm. <5 mm.
High: 14° Low: 8° High: 17° Low: 10° High: 15° Low: 9° High: 16° Low: 9°
               
NW
10-20
mph
Fresh breeze
NW→SSW
3
mph
Light air
SSW
8-19
mph
Fresh breeze
SSW
5
mph
Light breeze
WSW→NW
4
mph
Light breeze
WSW
6
mph
Light breeze
WSW
9-18
mph
Moderate breeze
SW
10-16
mph
Moderate breeze
UV: 2
 Low 
UV: 3
 Medium 
UV: 2
 Low 
UV: 2
 Low 

 

This afternoon
 
Partly cloudy. High 14°. UV index up to 2. Wind northwest around 10 mph, gusting to 20 mph.
Tonight
 
Partly cloudy. Patchy light fog after midnight. Low 8°. Wind northwest around 3 mph in the evening, becoming south-southwest after midnight.
Thursday
 
Partly cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. High 17°. UV index up to 3. Wind south-southwest around 8 mph, gusting to 19 mph.
Thursday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. Low 10°. Wind south-southwest around 5 mph.
Friday
 
Cloudy. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 15°. UV index up to 2. Wind west-southwest around 4 mph in the morning, becoming northwest in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Friday night
 
Mostly cloudy in the evening, becoming fair to partly cloudy after midnight. Light to moderate fog in the evening, then moderate fog after midnight. A chance of rain. Low 9°. Wind west-southwest around 6 mph. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm.
Saturday
 
Partly to mostly sunny in the morning, becoming partly cloudy in the afternoon. Light to moderate fog in the morning. High 16°. UV index up to 2. Wind west-southwest around 9 mph, gusting to 18 mph.
Saturday night
 
Fair to partly cloudy in the evening, becoming fair after midnight. Patchy light fog after midnight. Low 9°. Wind southwest around 10 mph, gusting to 16 mph.
Sunday
 
Partly cloudy in the morning, becoming cloudy in the afternoon. A slight chance of rain. Breezy. High 16°. UV index up to 2. Wind south around 9 mph, gusting to 18 mph, in the morning, becoming 13 mph, gusting to 23 mph, in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Sunday night
 
Dense overcast in the evening, becoming partly to mostly cloudy after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Breezy. Low 10°. Wind south-southwest around 12 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday
 
Partly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. A slight chance of rain. High 14°. UV index up to 2. Wind southwest around 10 mph, gusting to 19 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Monday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 10°. Wind south around 6 mph in the evening, becoming east-southeast around 9 mph, gusting to 17 mph, after midnight.
Tuesday
 
Cloudy in the morning, becoming dense overcast in the afternoon. A chance of rain in the afternoon. Windy. High 15°. Wind east-southeast around 16 mph, gusting to 26 mph, in the morning, becoming 20 mph, gusting to 28 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly between 2 and 5 mm.
Tuesday night
 
Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A chance of rain in the evening, then rain likely after midnight. Breezy. Low 13°. Wind east-southeast around 15 mph, gusting to 23 mph. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.

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