WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Sunday, 31-May-2026 11:00 am
 
This
afternoon
Mostly Cloudy
Mostly Cloudy
Tonight

Chance rain
Chance rain
Monday

Rain likely
Rain likely
Monday
night
Chance rain
Chance rain
Tuesday

Rain likely
Rain likely
Tuesday
night
Chance rain
Chance rain
Wednesday

Chance rain
Chance rain
Wednesday
night
Rain likely
Rain likely
5 mm. 15 mm. <5 mm. 10 mm. <2 mm. <5 mm. 5 mm.
High: 17° Low: 11° High: 14° Low: 12° High: 14° Low: 10° High: 14° Low: 12°
               
W
10-19
mph
Fresh breeze
SW
11-18
mph
Moderate breeze
SSW
11-18
mph
Moderate breeze
SSW
10-18
mph
Moderate breeze
W
9-17
mph
Moderate breeze
W
9-17
mph
Moderate breeze
SW
10-22→17-25
mph
Strong breeze
SSW
10-21
mph
Fresh breeze
UV: 4
 Medium 
UV: 2
 Low 
UV: 4
 Medium 
UV: 3
 Medium 

 

This afternoon
 
Mostly cloudy. High 17°. UV index up to 4. Wind west around 10 mph, gusting to 19 mph.
Tonight
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A chance of rain after midnight. Breezy. Low 11°. Wind southwest around 11 mph, gusting to 18 mph. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Monday
 
Dense overcast. Patchy light fog. Rain likely. Breezy. High 14°. UV index up to 2. Wind south-southwest around 11 mph, gusting to 18 mph. Chance of precipitation 80 percent. Precipitation mostly between 10 and 20 mm.
Monday night
 
Dense overcast in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 12°. Wind south-southwest around 10 mph, gusting to 18 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Tuesday
 
Cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog. Rain likely in the morning, then a chance of rain in the afternoon. High 14°. UV index up to 4. Wind west around 9 mph, gusting to 17 mph. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Tuesday night
 
Partly 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 10°. Wind west around 9 mph, gusting to 17 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Light to moderate fog in the morning. A chance of rain. Breezy. High 14°. UV index up to 3. Wind southwest around 10 mph, gusting to 22 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 in the evening, becoming mostly cloudy to cloudy after midnight. Light to moderate fog. Rain likely. Low 12°. Wind south-southwest around 10 mph, gusting to 21 mph. Chance of precipitation 70 percent. Precipitation mostly around 5 mm.
Thursday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. Rain likely. Breezy. High 16°. UV index up to 5. Wind southwest around 15 mph, gusting to 26 mph. Chance of precipitation 60 percent. Precipitation mostly between 2 and 5 mm.
Thursday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A chance of rain. Breezy and cool. Low 8°. Wind west around 14 mph, gusting to 24 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday
 
Mostly cloudy. A chance of rain. Breezy. High 13°. UV index up to 4. Wind west around 14 mph, gusting to 23 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Partly to mostly cloudy in the evening, becoming dense overcast after midnight. A slight chance of rain. Breezy. Low 10°. Wind southwest around 11 mph, gusting to 21 mph, in the evening, becoming 15 mph, gusting to 27 mph, after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday
 
Dense overcast. A chance of rain in the morning, then rain likely in the afternoon. Windy and cool. High 11°. Wind chill around 7. UV index up to 2. Wind south-southwest around 21 mph, gusting to 29 mph, in the morning, becoming 15 mph, gusting to 26 mph, 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. Patchy light fog after midnight. Rain likely in the evening, then a chance of rain after midnight. Breezy. Low 10°. Wind south-southwest around 14 mph, gusting to 22 mph. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.

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