WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Tuesday, 15-Sep-2026 09:00 pm
 
Tonight

Rain likely
Rain likely
Wednesday

Chance rain
Chance rain
Wednesday
night
Chance rain
Chance rain
Thursday

Partly Cloudy
Partly Cloudy
Thursday
night
Fog
Fog
Friday

Chance rain
Chance rain
Friday
night
Mostly Cloudy
Mostly Cloudy
Saturday

Mostly Cloudy
Mostly Cloudy
5 mm. 5 mm. 2 mm. <2 mm. <2 mm. <5 mm. <2 mm. <2 mm.
Low: 11° High: 13° Low: 10° High: 14° Low: 10° High: 13° Low: 12° High: 16°
               
NW
11-19
mph
Fresh breeze
WNW
12-19
mph
Fresh breeze
W
11-18→14-20
mph
Fresh breeze
W
15-23
mph
Fresh breeze
W
12-20
mph
Fresh breeze
WSW
11-20→15-23
mph
Fresh breeze
WSW
15-23
mph
Fresh breeze
W
17-25
mph
Strong breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 

 

Tonight
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. Rain likely. Low 11°. Wind northwest around 11 mph, gusting to 19 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Wednesday
 
Mostly cloudy to cloudy. Patchy light fog. A chance of rain in the morning, then a slight chance of rain in the afternoon. Breezy. High 13°. UV index up to 2. Wind west-northwest around 12 mph, gusting to 19 mph. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Breezy. Low 10°. Wind west around 11 mph, gusting to 18 mph, in the evening, becoming 14 mph, gusting to 20 mph, after midnight. Chance of precipitation 50 percent. Precipitation mostly around 2 mm.
Thursday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A chance of rain. Breezy. High 14°. UV index up to 2. Wind west around 15 mph, gusting to 23 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog. A chance of rain. Breezy. Low 10°. Wind west around 12 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday
 
Cloudy in the morning, becoming dense overcast in the afternoon. A chance of rain. Breezy. High 13°. UV index up to 2. Wind west-southwest around 11 mph, gusting to 20 mph, in the morning, becoming 15 mph, gusting to 23 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday night
 
Cloudy in the evening, becoming mostly cloudy after midnight. A chance of rain. Breezy. Low 12°. Wind west-southwest around 15 mph, gusting to 23 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday
 
Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A chance of rain. Windy. High 16°. UV index up to 3. Wind west around 17 mph, gusting to 25 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Fair in the evening, becoming mostly cloudy after midnight. Breezy. Low 10°. Wind west around 13 mph, gusting to 22 mph.
Sunday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. High 15°. UV index up to 2. Wind west around 11 mph, gusting to 19 mph.
Sunday night
 
Cloudy. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 13°. Wind southwest around 11 mph, gusting to 17 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 16°. UV index up to 2. Wind west-southwest around 8 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday night
 
Clear. Patchy light fog. Low 10°. Wind west-southwest around 3 mph.

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