WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Saturday, 18-Jul-2026 11:00 am
 
This
afternoon
Partly Cloudy
Partly Cloudy
Tonight

Partly Cloudy
Partly Cloudy
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Partly Cloudy
Partly Cloudy
Monday
night
Fair
Fair
Tuesday

Mostly Sunny
Mostly Sunny
Tuesday
night
Partly Cloudy
Partly Cloudy
<2 mm. <2 mm.
High: 20° Low: 13° High: 22° Low: 11° High: 22° Low: 11° High: 24° Low: 14°
               
NW
9-18
mph
Moderate breeze
NW→SE
5-16→calm
mph
Moderate breeze
ENE→NNE
6-16
mph
Moderate breeze
N→W
4-15
mph
Moderate breeze
W
7-17
mph
Moderate breeze
NW
6-17→3
mph
Moderate breeze
W
5-16→10-21
mph
Fresh breeze
W
12-21
mph
Fresh breeze
UV: 5
 Medium 
UV: 6
 High 
UV: 6
 High 
UV: 6
 High 

 

This afternoon
 
Partly cloudy. A slight chance of rain. High 20°. UV index up to 5. Wind northwest around 9 mph, gusting to 18 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tonight
 
Fair to partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 13°. Wind northwest around 5 mph, gusting to 16 mph, in the evening, becoming southeast near calm after midnight.
Sunday
 
Mostly cloudy in the morning, becoming mostly sunny in the afternoon. Mild. High 22°. UV index up to 6. Wind east-northeast around 6 mph, gusting to 16 mph, in the morning, becoming north-northeast in the afternoon.
Sunday night
 
Partly cloudy in the evening, becoming fair to partly cloudy after midnight. Low 11°. Wind north around 4 mph, gusting to 15 mph, in the evening, becoming west after midnight.
Monday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Mild. High 22°. UV index up to 6. Wind west around 7 mph, gusting to 17 mph.
Monday night
 
Fair. Low 11°. Wind northwest around 6 mph, gusting to 17 mph, in the evening, becoming 3 mph after midnight.
Tuesday
 
Mostly sunny in the morning, becoming partly to mostly sunny in the afternoon. Warm. High 24°. UV index up to 6. Wind west around 5 mph, gusting to 16 mph, in the morning, becoming 10 mph, gusting to 21 mph, in the afternoon.
Tuesday night
 
Partly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain. Breezy. Low 14°. Wind west around 12 mph, gusting to 21 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Cloudy in the morning, becoming partly cloudy in the afternoon. A chance of rain. Breezy. High 18°. UV index up to 5. Wind north-northwest around 12 mph, gusting to 20 mph. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. Low 13°. Wind northwest around 8 mph, gusting to 19 mph, in the evening, becoming 4 mph after midnight.
Thursday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. High 21°. UV index up to 5. Wind west-northwest around 6 mph, gusting to 16 mph, in the morning, becoming north-northwest in the afternoon.
Thursday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 12°. Wind north-northwest around 5 mph, gusting to 16 mph.
Friday
 
Partly to mostly cloudy in the morning, becoming sunny in the afternoon. Mild. High 22°. UV index up to 6. Wind west-northwest around 6 mph, gusting to 18 mph, in the morning, becoming 10 mph, gusting to 19 mph, in the afternoon.
Friday night
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 13°. Wind southwest around 9 mph, gusting to 17 mph.

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