WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 22-Jun-2026 09:00 pm
 
Tonight

Chance rain
Chance rain
Tuesday

Fog a.m.
Fog a.m.
Tuesday
night
Fog late
Fog late
Wednesday

Partly Cloudy
Partly Cloudy
Wednesday
night
Partly Cloudy
Partly Cloudy
Thursday

Partly Cloudy
Partly Cloudy
Thursday
night
Thunder storm
Thunder storm
Friday

Thunder storm
Thunder storm
5 mm. <2 mm. <5 mm. 2 mm.
Low: 20° High: 28° Low: 18° High: 28° Low: 17° High: 31° Low: 18° High: 28°
               
SSE
7-21→3
mph
Fresh breeze
S→N
5
mph
Light breeze
NW
2
mph
Light air
NNE
3
mph
Light air
NE→SE
4
mph
Light breeze
SE
9-18
mph
Moderate breeze
SE
9-16
mph
Moderate breeze
SSE→SW
7→11-21
mph
Fresh breeze
UV: 5
 Medium 
UV: 7
 High 
UV: 6
 High 
UV: 7
 High 

 

Tonight
 
Partly to mostly cloudy. 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. Unusually warm. Low 20°. Wind south-southeast around 7 mph, gusting to 21 mph, in the evening, becoming 3 mph after midnight. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. Near record warmth. High 28°. UV index up to 5. Wind south around 5 mph in the morning, becoming north in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Partly cloudy. Patchy light fog after midnight. Mild. Low 18°. Wind northwest around 2 mph.
Wednesday
 
Partly cloudy in the morning, becoming mostly sunny in the afternoon. Near record warmth. High 28°. UV index up to 7. Wind north-northeast around 3 mph.
Wednesday night
 
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Mild. Low 17°. Wind northeast around 4 mph in the evening, becoming southeast after midnight.
Thursday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Near record warmth. High 31°. UV index up to 6. Wind southeast around 9 mph, gusting to 18 mph.
Thursday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. A chance of rain after midnight. Scattered thundershowers possible. Mild. Low 18°. Wind southeast around 9 mph, gusting to 16 mph. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm.
Friday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. A chance of rain. Scattered thundershowers possible. Near record warmth. High 28°. UV index up to 7. Wind south-southeast around 7 mph in the morning, becoming southwest around 11 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 30 percent. Precipitation mostly around 2 mm.
Friday night
 
Fair in the evening, becoming partly cloudy after midnight. Light to moderate fog after midnight. Low 15°. Wind southwest around 8 mph, gusting to 20 mph.
Saturday
 
Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. Warm. High 24°. UV index up to 6. Wind southwest around 10 mph, gusting to 20 mph.
Saturday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 15°. Wind south-southwest around 7 mph, gusting to 19 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Sunday
 
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 morning, then a slight chance of rain in the afternoon. Breezy. High 20°. UV index up to 6. Wind southwest around 9 mph, gusting to 19 mph, in the morning, becoming 16 mph, gusting to 29 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Breezy. Low 11°. Wind southwest around 14 mph, gusting to 25 mph, in the evening, becoming 11 mph, gusting to 17 mph, after midnight. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.

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