WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Sunday, 27-Sep-2026 09:00 pm
 
Tonight

Mostly Cloudy
Mostly Cloudy
Monday

Partly Cloudy
Partly Cloudy
Monday
night
Partly Cloudy
Partly Cloudy
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Rain likely
Rain likely
Wednesday

Fog a.m.
Fog a.m.
Wednesday
night
Fog late
Fog late
Thursday

Partly Cloudy
Partly Cloudy
10 mm. <2 mm. <2 mm.
Low: 9° High: 16° Low: 11° High: 20° Low: 16° High: 20° Low: 13° High: 17°
               
WSW
5
mph
Light breeze
SSW→E
3
mph
Light air
SE
7-15
mph
Moderate breeze
SE
12-22→15-23
mph
Fresh breeze
SE
16-23
mph
Fresh breeze
S
10-20
mph
Fresh breeze
SSW
5-16→9-16
mph
Moderate breeze
SW
8-17
mph
Moderate breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 

 

Tonight
 
Partly to mostly cloudy. Low 9°. Wind west-southwest around 5 mph.
Monday
 
Partly cloudy. High 16°. UV index up to 2. Wind south-southwest around 3 mph in the morning, becoming east in the afternoon.
Monday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 11°. Wind southeast around 7 mph, gusting to 15 mph.
Tuesday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. Breezy and mild. High 20°. UV index up to 2. Wind southeast around 12 mph, gusting to 22 mph, in the morning, becoming 15 mph, gusting to 23 mph, in the afternoon.
Tuesday night
 
Cloudy in the evening, becoming dense overcast after midnight. Patchy light fog after midnight. A chance of rain in the evening, then rain likely after midnight. Windy and mild. Low 16°. Wind southeast around 16 mph, gusting to 23 mph. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
Wednesday
 
Mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. Mild. High 20°. UV index up to 2. Wind south around 10 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 13°. Wind south-southwest around 5 mph, gusting to 16 mph, in the evening, becoming 9 mph, gusting to 16 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. High 17°. UV index up to 2. Wind southwest around 8 mph, gusting to 17 mph.
Thursday night
 
Mostly cloudy. Low 11°. Wind south-southwest around 10 mph, gusting to 17 mph.
Friday
 
Partly to mostly cloudy. High 17°. UV index up to 2. Wind south-southwest around 10 mph, gusting to 19 mph.
Friday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 10°. Wind south-southwest around 7 mph in the evening, becoming 10 mph, gusting to 16 mph, after midnight.
Saturday
 
Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog. Rain likely. High 13°. Wind west around 8 mph. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Saturday night
 
Partly to mostly cloudy. Low 9°. Wind south-southwest around 3 mph in the evening, becoming south-southeast after midnight.

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