WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 21-Sep-2026 06:00 am
 
Today

Partly Cloudy
Partly Cloudy
Tonight

Fog
Fog
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Fog late
Fog late
Wednesday

Chance rain
Chance rain
Wednesday
night
Fog
Fog
Thursday

Fog a.m.
Fog a.m.
Thursday
night
Chance rain
Chance rain
<2 mm. <2 mm. <2 mm. <2 mm. 5 mm. <5 mm.
High: 21° Low: 13° High: 19° Low: 13° High: 15° Low: 9° High: 17° Low: 12°
               
SSW→WSW
5
mph
Light breeze
SSW
4
mph
Light breeze
SSW→NNE
3
mph
Light air
S
2
mph
Light air
WSW→NNW
6-17→11-20
mph
Fresh breeze
NW
9-17→3
mph
Moderate breeze
SSW
4→8-16
mph
Moderate breeze
SSW
8-16→12-21
mph
Fresh breeze
UV: 3
 Medium 
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 

 

Today
 
Cloudy in the morning, becoming partly cloudy in the afternoon. A slight chance of rain in the afternoon. Mild. High 21°. UV index up to 3. Wind south-southwest around 5 mph in the morning, becoming west-southwest in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tonight
 
Partly cloudy. Patchy light fog. A slight chance of rain. Low 13°. Wind south-southwest around 4 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Mild. High 19°. UV index up to 2. Wind south-southwest around 3 mph in the morning, becoming north-northeast in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Mostly cloudy in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 13°. Wind south around 2 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Dense overcast in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 15°, but temperatures falling in the afternoon. UV index up to 2. Wind west-southwest around 6 mph, gusting to 17 mph, in the morning, becoming north-northwest around 11 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Partly cloudy. Patchy light fog. Low 9°. Wind northwest around 9 mph, gusting to 17 mph, in the evening, becoming 3 mph after midnight.
Thursday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. High 17°. UV index up to 2. Wind south-southwest around 4 mph in the morning, becoming 8 mph, gusting to 16 mph, in the afternoon.
Thursday night
 
Mostly cloudy. A chance of rain after midnight. Low 12°. Wind south-southwest around 8 mph, gusting to 16 mph, in the evening, becoming 12 mph, gusting to 21 mph, after midnight. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm.
Friday
 
Partly cloudy. Patchy light fog in the morning. High 17°. UV index up to 3. Wind west-northwest around 8 mph, gusting to 18 mph.
Friday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind southwest around 6 mph.
Saturday
 
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 afternoon. High 17°. UV index up to 2. Wind south-southwest around 6 mph in the morning, becoming 12 mph, gusting to 24 mph, in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Fair to partly cloudy. Patchy light fog. A chance of rain after midnight. Breezy and cool. Low 8°. Wind southwest around 14 mph, gusting to 22 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Sunday
 
Sunny in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. Breezy. High 13°. UV index up to 2. Wind southwest around 14 mph, gusting to 23 mph.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Breezy. Low 10°. Wind southwest around 14 mph, gusting to 22 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.

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