WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Thursday, 27-Aug-2026 06:00 pm
 
Tonight

Chance rain
Chance rain
Friday

Chance rain
Chance rain
Friday
night
Fog late
Fog late
Saturday

Rain likely
Rain likely
Saturday
night
Chance rain
Chance rain
Sunday

Chance rain
Chance rain
Sunday
night
Chance rain
Chance rain
Monday

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

Chance rain
Chance rain
<5 mm. <2 mm. <2 mm. 15 mm. <5 mm. 5 mm. <2 mm. <2 mm. <2 mm. <5 mm.
Low: 16° High: 19° Low: 14° High: 17° Low: 13° High: 18° Low: 13° High: 15° Low: 11° High: 15°
                   
SSE→SW
3
mph
Light air
SW→W
5→9-18
mph
Moderate breeze
SW
8-17
mph
Moderate breeze
S
6
mph
Light breeze
WNW
7-17→11-18
mph
Moderate breeze
WSW→S
7→3
mph
Light breeze
S→SW
8-18
mph
Moderate breeze
WSW
13-20
mph
Fresh breeze
WSW
12-20
mph
Fresh breeze
WSW
15-25
mph
Strong breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 
UV: 2
 Low 
UV: 3
 Medium 

 

Tonight
 
Dense overcast in the evening, becoming cloudy after midnight. Light to moderate fog in the evening, then patchy light fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Precipitation showery or intermittent. Mild. Low 16°. Wind south-southeast around 3 mph in the evening, becoming southwest after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 19°. UV index up to 2. Wind southwest around 5 mph in the morning, becoming west around 9 mph, gusting to 18 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Friday night
 
Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A slight chance of rain after midnight. Low 14°. Wind southwest around 8 mph, gusting to 17 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday
 
Cloudy. Light to moderate fog in the morning, then moderate fog in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. High 17°. UV index up to 2. Wind south around 6 mph. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Saturday night
 
Cloudy in the evening, becoming mostly cloudy after midnight. Moderate fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 13°. Wind west-northwest around 7 mph, gusting to 17 mph, in the evening, becoming 11 mph, gusting to 18 mph, after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Sunday
 
Partly cloudy in the morning, becoming cloudy in the afternoon. Light to moderate fog. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 18°. UV index up to 3. Wind west-southwest around 7 mph in the morning, becoming south around 3 mph in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Sunday night
 
Cloudy in the evening, becoming partly cloudy after midnight. Light to moderate fog. A chance of rain in the evening, then a slight chance of rain after midnight. Low 13°. Wind south around 8 mph, gusting to 18 mph, in the evening, becoming southwest after midnight. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Monday
 
Mostly cloudy to cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the morning. A chance of rain. Breezy. High 15°. UV index up to 2. Wind west-southwest around 13 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday night
 
Dense overcast in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain. Breezy. Low 11°. Wind west-southwest around 12 mph, gusting to 20 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 15°. UV index up to 3. Wind west-southwest around 15 mph, gusting to 25 mph. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm.
Tuesday night
 
Mostly cloudy in the evening, becoming partly cloudy after midnight. Cool. Low 11°. Wind west-southwest around 10 mph, gusting to 18 mph, in the evening, becoming west-northwest after midnight.
Wednesday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 16°. UV index up to 3. Wind west-northwest around 8 mph, gusting to 17 mph.
Wednesday night
 
Dense overcast. A chance of rain in the evening, then rain likely after midnight. Breezy. Low 12°. Wind south-southwest around 9 mph, gusting to 20 mph, in the evening, becoming 19 mph, gusting to 28 mph, after midnight. Chance of precipitation 80 percent. Precipitation mostly between 20 and 30 mm.

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