WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Thursday, 18-Jun-2026 03:00 pm
 
This
afternoon
Cloudy
Cloudy
Tonight

Chance rain
Chance rain
Friday

Rain likely
Rain likely
Friday
night
Chance rain
Chance rain
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Partly Cloudy
Partly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
<5 mm. 5 mm. 2 mm. <2 mm.
High: 22° Low: 13° High: 15° Low: 11° High: 19° Low: 10° High: 22° Low: 13°
               
SSW
15-24
mph
Fresh breeze
SSW
10-20
mph
Fresh breeze
SSW
13-19
mph
Fresh breeze
SW
9-15
mph
Moderate breeze
WSW→NNW
7-17
mph
Moderate breeze
W→SSE
calm

Calm
ENE
5
mph
Light breeze
ENE→SE
3
mph
Light air
UV: 3
 Medium 
UV: 2
 Low 
UV: 5
 Medium 
UV: 6
 High 

 

This afternoon
 
Cloudy. Breezy and mild. High 22°. UV index up to 3. Wind south-southwest around 15 mph, gusting to 24 mph.
Tonight
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 13°. Wind south-southwest around 10 mph, gusting to 20 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday
 
Dense overcast. Patchy light fog. Rain likely. Breezy. High 15°. UV index up to 2. Wind south-southwest around 13 mph, gusting to 19 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Friday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Low 11°. Wind southwest around 9 mph, gusting to 15 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Saturday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 19°. UV index up to 5. Wind west-southwest around 7 mph, gusting to 17 mph, in the morning, becoming north-northwest in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Partly to mostly cloudy in the evening, becoming fair to partly cloudy after midnight. Low 10°. Wind west near calm in the evening, becoming south-southeast after midnight.
Sunday
 
Partly cloudy. Warm. High 22°. UV index up to 6. Wind east-northeast around 5 mph.
Sunday night
 
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Low 13°. Wind east-northeast around 3 mph in the evening, becoming southeast after midnight.
Monday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Warm. High 23°. UV index up to 5. Wind east-southeast around 5 mph in the morning, becoming west in the afternoon.
Monday night
 
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 13°. Wind west around 3 mph.
Tuesday
 
Sunny. Unusually warm. High 25°. UV index up to 7. Wind west-northwest around 4 mph.
Tuesday night
 
Clear. Patchy light fog after midnight. Low 12°. Wind north-northeast around 2 mph.
Wednesday
 
Sunny. Patchy light fog in the morning. Unusually warm. High 25°. UV index up to 7. Wind east-northeast around 5 mph.
Wednesday night
 
Clear in the evening, becoming fair to partly cloudy after midnight. Low 13°. Wind northeast around 5 mph in the evening, becoming east-southeast around 12 mph, gusting to 16 mph, after midnight.

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