WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 31-Aug-2026 06:00 pm
 
Tonight

Partly Cloudy
Partly Cloudy
Tuesday

Partly Cloudy
Partly Cloudy
Tuesday
night
Cloudy
Cloudy
Wednesday

Rain likely
Rain likely
Wednesday
night
Chance rain
Chance rain
Thursday

Mostly Cloudy
Mostly Cloudy
Thursday
night
Rain likely
Rain likely
Friday

Partly Cloudy
Partly Cloudy
<2 mm. <2 mm. <2 mm. 10 mm. 2 mm. <2 mm. 7 mm. <2 mm.
Low: 11° High: 17° Low: 12° High: 16° Low: 14° High: 20° Low: 14° High: 16°
               
W
10-20→6
mph
Fresh breeze
WSW
11-21
mph
Fresh breeze
WSW
10-18
mph
Moderate breeze
SSW
8→12-18
mph
Moderate breeze
SW
12-18
mph
Moderate breeze
SW
12-20
mph
Fresh breeze
WSW
16-26
mph
Strong breeze
W
19-29
mph
Strong breeze
UV: 3
 Medium 
UV: 2
 Low 
UV: 3
 Medium 
UV: 4
 Medium 

 

Tonight
 
Cloudy in the evening, becoming fair to partly cloudy after midnight. A slight chance of rain. Low 11°. Wind west around 10 mph, gusting to 20 mph, in the evening, becoming 6 mph after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain. Breezy. High 17°. UV index up to 3. Wind west-southwest around 11 mph, gusting to 21 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Cloudy. A chance of rain. Low 12°. Wind west-southwest around 10 mph, gusting to 18 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog. Rain likely in the morning, then a chance of rain in the afternoon. High 16°. UV index up to 2. Wind south-southwest around 8 mph in the morning, becoming 12 mph, gusting to 18 mph, in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Wednesday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Breezy. Low 14°. Wind southwest around 12 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Thursday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain. Breezy. High 20°. UV index up to 3. Wind southwest around 12 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Dense overcast. Rain likely. Breezy. Low 14°. Wind west-southwest around 16 mph, gusting to 26 mph. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
Friday
 
Partly cloudy. A chance of rain. Windy. High 16°. UV index up to 4. Wind west around 19 mph, gusting to 29 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Mostly cloudy. Patchy light fog after midnight. Breezy. Low 12°. Wind west around 15 mph, gusting to 24 mph, in the evening, becoming 10 mph, gusting to 20 mph, after midnight.
Saturday
 
Sunny in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. High 18°. UV index up to 4. Wind west around 6 mph in the morning, becoming northwest around 3 mph in the afternoon.
Saturday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind east-southeast around 4 mph in the evening, becoming south-southeast after midnight.
Sunday
 
Mostly sunny in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. Mild. High 20°. UV index up to 4. Wind south-southeast around 5 mph.
Sunday night
 
Mostly cloudy. A chance of rain. Low 13°. Wind south around 6 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.

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