WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Thursday, 17-Sep-2026 09:00 pm
 
Tonight

Partly Cloudy
Partly Cloudy
Friday

Chance rain
Chance rain
Friday
night
Chance rain
Chance rain
Saturday

Mostly Cloudy
Mostly Cloudy
Saturday
night
Mostly Cloudy
Mostly Cloudy
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Chance rain
Chance rain
<2 mm. <5 mm. 2 mm. <2 mm. <2 mm. <2 mm.
Low: 11° High: 13° Low: 12° High: 18° Low: 10° High: 13° Low: 9° High: 16°
               
W
13-21
mph
Fresh breeze
WSW
12-20→17-25
mph
Strong breeze
SW
17-24
mph
Fresh breeze
SW
15-24
mph
Fresh breeze
WSW
14-24
mph
Fresh breeze
W
14-23
mph
Fresh breeze
W→SSW
6-16
mph
Moderate breeze
SW
10-16
mph
Moderate breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 
UV: 2
 Low 

 

Tonight
 
Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A slight chance of rain. Breezy. Low 11°. Wind west around 13 mph, gusting to 21 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday
 
Cloudy in the morning, becoming dense overcast in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 13°. UV index up to 2. Wind west-southwest around 12 mph, gusting to 20 mph, in the morning, becoming 17 mph, gusting to 25 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday night
 
Dense overcast in the evening, becoming cloudy after midnight. A chance of rain. Windy. Low 12°, but temperatures rising after midnight. Wind southwest around 17 mph, gusting to 24 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Saturday
 
Mostly cloudy. A slight chance of rain. Breezy. High 18°. UV index up to 2. Wind southwest around 15 mph, gusting to 24 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Partly to mostly cloudy. Breezy. Low 10°. Wind west-southwest around 14 mph, gusting to 24 mph.
Sunday
 
Partly to mostly cloudy. Breezy. High 13°. UV index up to 3. Wind west around 14 mph, gusting to 23 mph.
Sunday night
 
Partly cloudy in the evening, becoming cloudy after midnight. A chance of rain after midnight. Low 9°. Wind west around 6 mph, gusting to 16 mph, in the evening, becoming south-southwest after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 16°. UV index up to 2. Wind southwest around 10 mph, gusting to 16 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Monday night
 
Mostly cloudy. Low 11°. Wind west around 5 mph.
Tuesday
 
Partly cloudy. High 18°. UV index up to 3. Wind west around 2 mph in the morning, becoming east in the afternoon.
Tuesday night
 
Cloudy in the evening, becoming dense overcast after midnight. Low 13°. Wind east around 4 mph.
Wednesday
 
Dense overcast. A chance of rain. High 16°. Wind south-southeast around 4 mph in the morning, becoming southwest in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog. A slight chance of rain. Low 11°. Wind west-northwest around 6 mph in the evening, becoming north after midnight. 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.