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

Partly Cloudy
Partly Cloudy
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Fog late
Fog late
Monday

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

Chance rain
Chance rain
Tuesday
night
Chance rain
Chance rain
Wednesday

Chance rain
Chance rain
Wednesday
night
Rain likely
Rain likely
Thursday

Rain likely
Rain likely
<2 mm. <2 mm. 25 mm. 2 mm. <2 mm. <5 mm. 7 mm. 15 mm.
Low: 11° High: 19° Low: 13° High: 18° Low: 14° High: 17° Low: 13° High: 16° Low: 12° High: 15°
                   
NNW→WNW
2
mph
Light air
NW
4
mph
Light breeze
SW
5
mph
Light breeze
WNW
8-16
mph
Moderate breeze
SW
6→11-18
mph
Moderate breeze
W
13-21
mph
Fresh breeze
W
9-18
mph
Moderate breeze
WSW
10-19
mph
Fresh breeze
S→ESE
4
mph
Light breeze
NNE
9-19
mph
Fresh breeze
UV: 3
 Medium 
UV: 3
 Medium 
UV: 3
 Medium 
UV: 4
 Medium 
UV: 4
 Medium 

 

Tonight
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Low 11°. Wind north-northwest around 2 mph in the evening, becoming west-northwest after midnight.
Sunday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. High 19°. UV index up to 3. Wind northwest around 4 mph.
Sunday night
 
Cloudy. Patchy light fog after midnight. A chance of rain. Low 13°. Wind southwest around 5 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 18°. UV index up to 3. Wind west-northwest around 8 mph, gusting to 16 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday night
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. Light to moderate fog. Rain likely. Low 14°. Wind southwest around 6 mph in the evening, becoming 11 mph, gusting to 18 mph, after midnight. Chance of precipitation 70 percent. Precipitation mostly between 20 and 30 mm.
Tuesday
 
Cloudy in the morning, becoming mostly cloudy to cloudy 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. Breezy. High 17°. UV index up to 3. Wind west around 13 mph, gusting to 21 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Tuesday night
 
Mostly cloudy to cloudy. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Low 13°. Wind west around 9 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 16°. UV index up to 4. Wind west-southwest around 10 mph, gusting to 19 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Wednesday night
 
Moderate fog. Rain likely. Low 12°. Wind south around 4 mph in the evening, becoming east-southeast after midnight. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Thursday
 
Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Light to moderate fog in the morning, then patchy light fog in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. High 15°. UV index up to 4. Wind north-northeast around 9 mph, gusting to 19 mph. Chance of precipitation 70 percent. Precipitation mostly between 10 and 20 mm.
Thursday night
 
Mostly cloudy. Light to moderate fog. Rain likely. Low 12°. Wind north-northwest around 6 mph, gusting to 17 mph, in the evening, becoming 2 mph after midnight. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Friday
 
Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. Light to moderate fog in the morning, then patchy light fog in the afternoon. A chance of rain. Cool. High 14°. UV index up to 4. Wind west-northwest around 4 mph in the morning, becoming north in the afternoon. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Friday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 11°. Wind east-northeast around 10 mph, gusting to 18 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.

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