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

Mostly Cloudy
Mostly Cloudy
Thursday

Rain likely
Rain likely
Thursday
night
Chance rain
Chance rain
Friday

Rain likely
Rain likely
Friday
night
Fog
Fog
Saturday

Rain likely
Rain likely
Saturday
night
Chance rain
Chance rain
Sunday

Chance rain
Chance rain
<2 mm. 25 mm. <5 mm. 5 mm. <2 mm. 15 mm. 2 mm. 5 mm.
Low: 18° High: 21° Low: 16° High: 17° Low: 14° High: 16° Low: 13° High: 16°
               
ESE
6-16
mph
Moderate breeze
ESE
8-17→5
mph
Moderate breeze
SW
2→5
mph
Light breeze
SW
11-20
mph
Fresh breeze
SW
7-15
mph
Moderate breeze
SW→E
5
mph
Light breeze
N→W
5
mph
Light breeze
SSW
5
mph
Light breeze
UV: 2
 Low 
UV: 2
 Low 

 

Tonight
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain. Mild. Low 18°. Wind east-southeast around 6 mph, gusting to 16 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday
 
Dense overcast. Patchy light fog in the morning, then light to moderate fog in the afternoon. Rain very likely. Precipitation showery or intermittent. Mild. High 21°, but temperatures falling in the afternoon. Wind east-southeast around 8 mph, gusting to 17 mph, in the morning, becoming 5 mph in the afternoon. Chance of precipitation 80 percent. Precipitation mostly between 20 and 30 mm.
Thursday night
 
Mostly cloudy to cloudy. Light to moderate fog. A chance of rain in the evening, then a slight chance of rain after midnight. Low 16°. Wind southwest around 2 mph in the evening, becoming 5 mph after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday
 
Mostly cloudy to cloudy. Light to moderate fog in the morning, then patchy light fog in the afternoon. Rain likely. High 17°. UV index up to 2. Wind southwest around 11 mph, gusting to 20 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Friday night
 
Partly cloudy in the evening, becoming cloudy after midnight. Light to moderate fog. A chance of rain after midnight. Low 14°. Wind southwest around 7 mph, gusting to 15 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday
 
Cloudy in the morning, becoming dense overcast in the afternoon. Light to moderate fog. A chance of rain in the morning, then rain likely in the afternoon. High 16°. Wind southwest around 5 mph in the morning, becoming east in the afternoon. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Saturday night
 
Dense overcast in the evening, becoming partly to mostly cloudy after midnight. Light to moderate fog in the evening, then moderate fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Low 13°. Wind north around 5 mph in the evening, becoming west after midnight. Chance of precipitation 50 percent. Precipitation mostly around 2 mm.
Sunday
 
Partly to mostly cloudy in the morning, becoming dense overcast in the afternoon. Moderate fog in the morning, then light to moderate fog in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 16°. UV index up to 2. Wind south-southwest around 5 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Sunday night
 
Moderate fog. A chance of rain in the evening, then a slight chance of rain after midnight. Low 13°. Wind southwest around 8 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly around 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 in the morning, then a slight chance of rain in the afternoon. Breezy. High 15°. UV index up to 3. Wind west-southwest around 16 mph, gusting to 26 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Monday night
 
Cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 12°. Wind west-southwest around 10 mph, gusting to 20 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Tuesday
 
Partly cloudy. Light to moderate fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. Breezy and cool. High 14°. UV index up to 3. Wind west-southwest around 12 mph, gusting to 24 mph, in the morning, becoming 16 mph, gusting to 25 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Tuesday night
 
Partly cloudy in the evening, becoming fair after midnight. Patchy light fog. Cool. Low 10°. Wind northwest around 9 mph, gusting to 20 mph.

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