WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Saturday, 18-Jul-2026 09:00 pm
 
Tonight

Partly Cloudy
Partly Cloudy
Sunday

Mostly Cloudy
Mostly Cloudy
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Mostly Sunny
Mostly Sunny
Monday
night
Clear
Clear
Tuesday

Mostly Sunny
Mostly Sunny
Tuesday
night
Chance rain
Chance rain
Wednesday

Chance rain
Chance rain
<2 mm. 2 mm. <5 mm.
Low: 13° High: 21° Low: 12° High: 22° Low: 11° High: 22° Low: 12° High: 18°
               
NNW
2
mph
Light air
NE
4→7-16
mph
Moderate breeze
N→WNW
4-16
mph
Moderate breeze
WNW
7-17
mph
Moderate breeze
WNW
4-17
mph
Moderate breeze
NW
5→10-20
mph
Fresh breeze
NW
10-20
mph
Fresh breeze
NW
10-19
mph
Fresh breeze
UV: 6
 High 
UV: 6
 High 
UV: 6
 High 
UV: 5
 Medium 

 

Tonight
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. A slight chance of rain. Low 13°. Wind north-northwest around 2 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Sunday
 
Partly to mostly cloudy in the morning, becoming sunny in the afternoon. High 21°. UV index up to 6. Wind northeast around 4 mph in the morning, becoming 7 mph, gusting to 16 mph, in the afternoon.
Sunday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 12°. Wind north around 4 mph, gusting to 16 mph, in the evening, becoming west-northwest after midnight.
Monday
 
Partly to mostly sunny in the morning, becoming mostly sunny in the afternoon. Mild. High 22°. UV index up to 6. Wind west-northwest around 7 mph, gusting to 17 mph.
Monday night
 
Clear in the evening, becoming fair after midnight. Low 11°. Wind west-northwest around 4 mph, gusting to 17 mph.
Tuesday
 
Partly to mostly sunny in the morning, becoming mostly sunny in the afternoon. Mild. High 22°. UV index up to 6. Wind northwest around 5 mph in the morning, becoming 10 mph, gusting to 20 mph, in the afternoon.
Tuesday night
 
Partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 12°. Wind northwest around 10 mph, gusting to 20 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Wednesday
 
Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 18°. UV index up to 5. Wind northwest around 10 mph, gusting to 19 mph. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm.
Wednesday night
 
Partly cloudy. Patchy light fog after midnight. Low 12°. Wind northwest around 7 mph, gusting to 17 mph, in the evening, becoming 3 mph after midnight.
Thursday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. Mild. High 22°. UV index up to 6. Wind northwest around 3 mph in the morning, becoming 6 mph in the afternoon.
Thursday night
 
Fair. Low 11°. Wind west-northwest around 2 mph in the evening, becoming west-southwest after midnight.
Friday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain. High 21°. UV index up to 6. Wind west-southwest around 5 mph, gusting to 17 mph, in the morning, becoming 11 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Friday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Low 14°. Wind west-southwest around 10 mph, gusting to 19 mph.

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