WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Sunday, 31-May-2026 09:00 pm
 
Tonight

Rain likely
Rain likely
Monday

Rain likely
Rain likely
Monday
night
Rain likely
Rain likely
Tuesday

Rain likely
Rain likely
Tuesday
night
Fog late
Fog late
Wednesday

Chance rain
Chance rain
Wednesday
night
Rain likely
Rain likely
Thursday

Rain likely
Rain likely
10 mm. 15 mm. 5 mm. 10 mm. <5 mm. <5 mm. 15 mm.
Low: 12° High: 15° Low: 12° High: 14° Low: 10° High: 15° Low: 12° High: 14°
               
S
11-24
mph
Fresh breeze
S
11-19
mph
Fresh breeze
SSW
11-18→8-16
mph
Moderate breeze
WSW→NW
8-16
mph
Moderate breeze
WSW
7-16
mph
Moderate breeze
SW
14-24→17-25
mph
Strong breeze
SW
11-22
mph
Fresh breeze
SW→W
14-24
mph
Fresh breeze
UV: 2
 Low 
UV: 3
 Medium 
UV: 4
 Medium 
UV: 3
 Medium 

 

Tonight
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. Patchy light fog after midnight. Rain likely after midnight. Breezy. Low 12°. Wind south around 11 mph, gusting to 24 mph. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Monday
 
Dense overcast. Patchy light fog. Rain likely. Breezy. High 15°. UV index up to 2. Wind south around 11 mph, gusting to 19 mph. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Monday night
 
Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. Rain likely in the evening, then a slight chance of rain after midnight. Low 12°. Wind south-southwest around 11 mph, gusting to 18 mph, in the evening, becoming 8 mph, gusting to 16 mph, after midnight. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Tuesday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. Light to moderate fog. A chance of rain in the morning, then rain likely in the afternoon. High 14°, but temperatures falling in the afternoon. UV index up to 3. Wind west-southwest around 8 mph, gusting to 16 mph, in the morning, becoming northwest in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Tuesday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. Low 10°. Wind west-southwest around 7 mph, gusting to 16 mph.
Wednesday
 
Mostly cloudy to cloudy in the morning, becoming mostly cloudy in the afternoon. Light to moderate fog in the morning. A chance of rain. Breezy. High 15°. UV index up to 4. Wind southwest around 14 mph, gusting to 24 mph, in the morning, becoming 17 mph, gusting to 25 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Wednesday night
 
Cloudy. Patchy light fog. Rain likely. Low 12°. Wind southwest around 11 mph, gusting to 22 mph. Chance of precipitation 60 percent. Precipitation mostly between 2 and 5 mm.
Thursday
 
Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog. A chance of rain in the morning, then rain likely in the afternoon. Breezy. High 14°. UV index up to 3. Wind southwest around 14 mph, gusting to 24 mph, in the morning, becoming west in the afternoon. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Thursday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. A chance of rain in the evening, then a slight chance of rain after midnight. Breezy. Low 10°. Wind west around 15 mph, gusting to 24 mph, in the evening, becoming 12 mph, gusting to 21 mph, after midnight. Chance of precipitation 50 percent. Precipitation mostly around 2 mm.
Friday
 
Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 13°. UV index up to 5. Wind west around 11 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Partly cloudy in the evening, becoming dense overcast after midnight. Patchy light fog after midnight. Rain likely after midnight. Low 10°. Wind south around 8 mph, gusting to 22 mph. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
Saturday
 
Dense overcast in the morning, becoming partly cloudy in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. Breezy. High 15°. UV index up to 4. Wind east-southeast around 14 mph, gusting to 25 mph, in the morning, becoming south-southwest in the afternoon. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Saturday night
 
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Breezy. Low 10°. Wind southwest around 16 mph, gusting to 24 mph, in the evening, becoming 11 mph, gusting to 19 mph, after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.

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