WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Wednesday, 22-Jul-2026 09:00 pm
 
Tonight

Fog late
Fog late
Thursday

Fog a.m.
Fog a.m.
Thursday
night
Partly Cloudy
Partly Cloudy
Friday

Partly Cloudy
Partly Cloudy
Friday
night
Mostly Cloudy
Mostly Cloudy
Saturday

Mostly Cloudy
Mostly Cloudy
Saturday
night
Chance rain
Chance rain
Sunday

Rain likely
Rain likely
<2 mm. <2 mm. <5 mm. 5 mm.
Low: 13° High: 19° Low: 12° High: 21° Low: 13° High: 19° Low: 13° High: 16°
               
NW
5
mph
Light breeze
NW
8-17
mph
Moderate breeze
NW
3-15
mph
Moderate breeze
NW
5-17→10-20
mph
Fresh breeze
W
6-17
mph
Moderate breeze
WSW
12-22
mph
Fresh breeze
WSW
9-18
mph
Moderate breeze
W
13-21
mph
Fresh breeze
UV: 4
 Medium 
UV: 6
 High 
UV: 4
 Medium 
UV: 4
 Medium 

 

Tonight
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog after midnight. A slight chance of rain after midnight. Low 13°. Wind northwest around 5 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. High 19°. UV index up to 4. Wind northwest around 8 mph, gusting to 17 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Partly cloudy. Low 12°. Wind northwest around 3 mph, gusting to 15 mph.
Friday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. High 21°. UV index up to 6. Wind northwest around 5 mph, gusting to 17 mph, in the morning, becoming 10 mph, gusting to 20 mph, in the afternoon.
Friday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 13°. Wind west around 6 mph, gusting to 17 mph.
Saturday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. Breezy. High 19°. UV index up to 4. Wind west-southwest around 12 mph, gusting to 22 mph.
Saturday night
 
Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 13°. Wind west-southwest around 9 mph, gusting to 18 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Sunday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. Rain likely. Breezy. High 16°. UV index up to 4. Wind west around 13 mph, gusting to 21 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming partly to mostly cloudy after midnight. A chance of rain. Breezy. Low 12°. Wind west-northwest around 12 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Monday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. High 21°. UV index up to 6. Wind west around 11 mph, gusting to 20 mph.
Monday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. Low 14°. Wind west-southwest around 10 mph, gusting to 19 mph.
Tuesday
 
Mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Patchy light fog in the morning. A slight chance of rain. Breezy and mild. High 22°. UV index up to 5. Wind west-southwest around 12 mph, gusting to 20 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 14°. Wind west-southwest around 9 mph, gusting to 20 mph.

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