WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Sunday, 19-Jul-2026 09:00 pm
 
Tonight

Partly Cloudy
Partly Cloudy
Monday

Partly Cloudy
Partly Cloudy
Monday
night
Fog late
Fog late
Tuesday

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

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

Mostly Cloudy
Mostly Cloudy
<2 mm. 2 mm. <2 mm. <2 mm.
Low: 11° High: 20° Low: 12° High: 21° Low: 13° High: 21° Low: 13° High: 21°
               
NNW→W
3
mph
Light air
W
7-17
mph
Moderate breeze
NNW
4-15
mph
Moderate breeze
NNW
6→9-19
mph
Fresh breeze
NNW
10-19
mph
Fresh breeze
NW
9-18
mph
Moderate breeze
NW
5-16
mph
Moderate breeze
NW
7-16
mph
Moderate breeze
UV: 5
 Medium 
UV: 6
 High 
UV: 6
 High 
UV: 6
 High 

 

Tonight
 
Partly cloudy in the evening, becoming fair after midnight. Low 11°. Wind north-northwest around 3 mph in the evening, becoming west after midnight.
Monday
 
Partly cloudy. High 20°. UV index up to 5. Wind west around 7 mph, gusting to 17 mph.
Monday night
 
Fair to partly cloudy. Patchy light fog after midnight. Low 12°. Wind north-northwest around 4 mph, gusting to 15 mph.
Tuesday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning. High 21°. UV index up to 6. Wind north-northwest around 6 mph in the morning, becoming 9 mph, gusting to 19 mph, in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 13°. Wind north-northwest around 10 mph, gusting to 19 mph. Chance of precipitation 30 percent. Precipitation mostly around 2 mm.
Wednesday
 
Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. High 21°. UV index up to 6. Wind northwest around 9 mph, gusting to 18 mph.
Wednesday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. A slight chance of rain after midnight. Low 13°. Wind northwest around 5 mph, gusting to 16 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday
 
Partly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. A slight chance of rain. Mild. High 21°. UV index up to 6. Wind northwest around 7 mph, gusting to 16 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind northwest around 3 mph, gusting to 16 mph.
Friday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. Mild. High 22°. UV index up to 6. Wind west-northwest around 5 mph, gusting to 18 mph, in the morning, becoming 10 mph, gusting to 19 mph, in the afternoon.
Friday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 13°. Wind west-southwest around 8 mph, gusting to 18 mph.
Saturday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Breezy. High 20°. UV index up to 4. Wind west-southwest around 12 mph, gusting to 23 mph.
Saturday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A slight chance of rain. Low 13°. Wind west-southwest around 9 mph, gusting to 18 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.

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