WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Saturday, 12-Sep-2026 09:00 pm
 
Tonight

Chance rain
Chance rain
Sunday

Chance rain
Chance rain
Sunday
night
Fog
Fog
Monday

Chance rain
Chance rain
Monday
night
Rain likely
Rain likely
Tuesday

Fog a.m.
Fog a.m.
Tuesday
night
Rain likely
Rain likely
Wednesday

Rain likely
Rain likely
2 mm. 2 mm. 2 mm. 5 mm. <2 mm. 7 mm. 7 mm.
Low: 16° High: 19° Low: 14° High: 21° Low: 15° High: 17° Low: 11° High: 13°
               
SW
3
mph
Light air
WNW→N
4
mph
Light breeze
S
3
mph
Light air
S
5-15→14-24
mph
Fresh breeze
SSW
14-23
mph
Fresh breeze
WSW
11-21
mph
Fresh breeze
WSW→WNW
10-18
mph
Moderate breeze
WNW
10-17
mph
Moderate breeze
UV: 3
 Medium 
UV: 3
 Medium 
UV: 2
 Low 
UV: 2
 Low 

 

Tonight
 
Cloudy. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Mild. Low 16°. Wind southwest around 3 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday
 
Mostly cloudy to cloudy. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Mild. High 19°. UV index up to 3. Wind west-northwest around 4 mph in the morning, becoming north in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday night
 
Mostly cloudy. Patchy light fog. Low 14°. Wind south around 3 mph.
Monday
 
Mostly cloudy. A chance of rain in the morning, then a slight chance of rain in the afternoon. Mild. High 21°. UV index up to 3. Wind south around 5 mph, gusting to 15 mph, in the morning, becoming 14 mph, gusting to 24 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Monday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. Rain likely. Breezy. Low 15°. Wind south-southwest around 14 mph, gusting to 23 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Tuesday
 
Partly cloudy. Patchy light fog in the morning. A chance of rain. Breezy. High 17°. UV index up to 2. Wind west-southwest around 11 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Partly cloudy in the evening, becoming cloudy after midnight. Patchy light fog. A chance of rain in the evening, then rain likely after midnight. Low 11°. Wind west-southwest around 10 mph, gusting to 18 mph, in the evening, becoming west-northwest after midnight. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
Wednesday
 
Mostly cloudy to cloudy. Patchy light fog. Rain likely. High 13°. UV index up to 2. Wind west-northwest around 10 mph, gusting to 17 mph. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Wednesday night
 
Cloudy. Patchy light fog. A slight chance of rain in the evening, then a chance of rain after midnight. Low 11°. Wind southwest around 9 mph, gusting to 17 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Thursday
 
Mostly cloudy. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 14°. UV index up to 2. Wind west around 13 mph, gusting to 22 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Thursday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. A chance of rain. Breezy. Low 10°. Wind west around 14 mph, gusting to 22 mph, in the evening, becoming 17 mph, gusting to 24 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday
 
Cloudy. A chance of rain in the morning, then a slight chance of rain in the afternoon. Windy. High 13°. Wind west around 17 mph, gusting to 29 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Friday night
 
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain in the evening, then rain likely after midnight. Windy. Low 12°, but temperatures rising after midnight. Wind southwest around 22 mph, gusting to 30 mph. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.

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