WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Saturday, 26-Sep-2026 09:00 pm
 
Tonight

Partly Cloudy
Partly Cloudy
Sunday

Chance rain
Chance rain
Sunday
night
Fog
Fog
Monday

Fog a.m.
Fog a.m.
Monday
night
Mostly Cloudy
Mostly Cloudy
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Rain likely
Rain likely
Wednesday

Chance rain
Chance rain
Wednesday
night
Fog
Fog
Thursday

Fog a.m.
Fog a.m.
<5 mm. <2 mm. 15 mm. 5 mm. <2 mm. <2 mm.
Low: 13° High: 17° Low: 9° High: 15° Low: 12° High: 19° Low: 15° High: 19° Low: 12° High: 15°
                   
S
7-16
mph
Moderate breeze
S→SW
14-24
mph
Fresh breeze
W
5-16
mph
Moderate breeze
SSW→ENE
4
mph
Light breeze
ESE
6→9-16
mph
Moderate breeze
ESE
12-21
mph
Fresh breeze
SE
16-24
mph
Fresh breeze
SSE
10-19→13-22
mph
Fresh breeze
SSW
10-22
mph
Fresh breeze
SSW
10-18
mph
Moderate breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 

 

Tonight
 
Fair to partly cloudy in the evening, becoming mostly cloudy after midnight. Low 13°. Wind south around 7 mph, gusting to 16 mph.
Sunday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. A chance of rain. Breezy. High 17°. Wind south around 14 mph, gusting to 24 mph, in the morning, becoming southwest in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Sunday night
 
Partly to mostly cloudy. Patchy light fog. Low 9°. Wind west around 5 mph, gusting to 16 mph.
Monday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. High 15°. UV index up to 2. Wind south-southwest around 4 mph in the morning, becoming east-northeast in the afternoon.
Monday night
 
Partly to mostly cloudy. Low 12°. Wind east-southeast around 6 mph in the evening, becoming 9 mph, gusting to 16 mph, after midnight.
Tuesday
 
Mostly cloudy to cloudy. A slight chance of rain in the morning. Breezy and mild. High 19°. UV index up to 2. Wind east-southeast around 12 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Dense overcast. Patchy light fog after midnight. A chance of rain in the evening, then rain likely after midnight. Windy and mild. Low 15°. Wind southeast around 16 mph, gusting to 24 mph. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Wednesday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. Light to moderate fog in the morning. A chance of rain. Breezy and mild. High 19°. UV index up to 2. Wind south-southeast around 10 mph, gusting to 19 mph, in the morning, becoming 13 mph, gusting to 22 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog. A chance of rain. Low 12°. Wind south-southwest around 10 mph, gusting to 22 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday
 
Partly cloudy. Patchy light fog in the morning. A slight chance of rain. High 15°. UV index up to 2. Wind south-southwest around 10 mph, gusting to 18 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Cloudy. A chance of rain. Low 10°. Wind south-southwest around 8 mph, gusting to 16 mph, in the evening, becoming 12 mph, gusting to 18 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday
 
Mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 15°. UV index up to 2. Wind south-southwest around 11 mph, gusting to 18 mph, in the morning, becoming west around 7 mph, gusting to 15 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Friday night
 
Mostly clear in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog. Low 9°. Wind northwest around 3 mph in the evening, becoming southwest after midnight.

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