WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Friday, 11-Sep-2026 11:00 am
 
This
afternoon
Partly Cloudy
Partly Cloudy
Tonight

Partly Cloudy
Partly Cloudy
Saturday

Rain likely
Rain likely
Saturday
night
Chance rain
Chance rain
Sunday

Chance rain
Chance rain
Sunday
night
Fog
Fog
Monday

Chance rain
Chance rain
Monday
night
Rain likely
Rain likely
<2 mm. 5 mm. <5 mm. <2 mm. <5 mm. 7 mm.
High: 16° Low: 12° High: 18° Low: 15° High: 18° Low: 14° High: 19° Low: 13°
               
NNW
8-17
mph
Moderate breeze
SSW
5→10-21
mph
Fresh breeze
SSW
19-27→13-22
mph
Strong breeze
SSW
5
mph
Light breeze
W
4
mph
Light breeze
SSW
6
mph
Light breeze
SSW
9-17→13-21
mph
Fresh breeze
SSW→WNW
14-22→11-19
mph
Fresh breeze
UV: 3
 Medium 
UV: 2
 Low 
UV: 2
 Low 
UV: 2
 Low 

 

This afternoon
 
Partly cloudy. A slight chance of rain. High 16°. UV index up to 3. Wind north-northwest around 8 mph, gusting to 17 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tonight
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 12°. Wind south-southwest around 5 mph in the evening, becoming 10 mph, gusting to 21 mph, after midnight.
Saturday
 
Dense overcast in the morning, becoming cloudy in the afternoon. Rain likely. Breezy. High 18°. UV index up to 2. Wind south-southwest around 19 mph, gusting to 27 mph, in the morning, becoming 13 mph, gusting to 22 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Saturday night
 
Dense overcast. Patchy light fog. A chance of rain. Low 15°. Wind south-southwest around 5 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Sunday
 
Mostly cloudy to cloudy. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 18°. UV index up to 2. Wind west around 4 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Sunday night
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog in the evening. Low 14°. Wind south-southwest around 6 mph.
Monday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy and mild. High 19°. UV index up to 2. Wind south-southwest around 9 mph, gusting to 17 mph, in the morning, becoming 13 mph, gusting to 21 mph, in the afternoon. 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. Rain likely in the evening, then a chance of rain after midnight. Breezy. Low 13°. Wind south-southwest around 14 mph, gusting to 22 mph, in the evening, becoming west-northwest around 11 mph, gusting to 19 mph, after midnight. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Tuesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. Breezy. High 15°. UV index up to 2. Wind west-northwest around 13 mph, gusting to 22 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Tuesday 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. Low 10°. Wind west-northwest around 13 mph, gusting to 21 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Dense overcast. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 13°. Wind west around 11 mph, gusting to 20 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. A chance of rain. Breezy. Low 12°. Wind west-southwest around 13 mph, gusting to 21 mph, in the evening, becoming 18 mph, gusting to 26 mph, after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Thursday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain. Windy. High 15°. UV index up to 2. Wind west-southwest around 18 mph, gusting to 27 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Partly cloudy in the evening, becoming fair to partly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Breezy. Low 10°. Wind west-southwest around 15 mph, gusting to 25 mph. 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.