WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Tuesday, 21-Jul-2026 03:00 pm
 
This
afternoon
Mostly Cloudy
Mostly Cloudy
Tonight

Fog late
Fog late
Wednesday

Fog a.m.
Fog a.m.
Wednesday
night
Mostly Cloudy
Mostly Cloudy
Thursday

Mostly Cloudy
Mostly Cloudy
Thursday
night
Partly Cloudy
Partly Cloudy
Friday

Partly Cloudy
Partly Cloudy
Friday
night
Fog late
Fog late
Saturday

Fog a.m.
Fog a.m.
Saturday
night
Chance rain
Chance rain
2 mm. <2 mm. <2 mm. <2 mm. 2 mm.
High: 18° Low: 11° High: 21° Low: 13° High: 20° Low: 12° High: 22° Low: 12° High: 16° Low: 12°
                   
NNW
12-24
mph
Fresh breeze
NNW
9-18
mph
Moderate breeze
NNW
7-16
mph
Moderate breeze
NNW
4
mph
Light breeze
NW
7-17
mph
Moderate breeze
WNW
4-16
mph
Moderate breeze
WSW→NW
6-19→10-20
mph
Fresh breeze
W
7-17
mph
Moderate breeze
WSW
13-23
mph
Fresh breeze
WSW
10-19
mph
Fresh breeze
UV: 4
 Medium 
UV: 5
 Medium 
UV: 5
 Medium 
UV: 6
 High 
UV: 3
 Medium 

 

This afternoon
 
Partly to mostly cloudy. Breezy. High 18°. UV index up to 4. Wind north-northwest around 12 mph, gusting to 24 mph.
Tonight
 
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain after midnight. Cool. Low 11°. Wind north-northwest around 9 mph, gusting to 18 mph. Chance of precipitation 30 percent. Precipitation mostly around 2 mm.
Wednesday
 
Mostly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 21°. UV index up to 5. Wind north-northwest around 7 mph, gusting to 16 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday night
 
Mostly cloudy. Low 13°. Wind north-northwest around 4 mph.
Thursday
 
Mostly cloudy. A chance of rain. High 20°. UV index up to 5. Wind northwest around 7 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Partly cloudy. Low 12°. Wind west-northwest around 4 mph, gusting to 16 mph.
Friday
 
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Mild. High 22°. UV index up to 6. Wind west-southwest around 6 mph, gusting to 19 mph, in the morning, becoming northwest around 10 mph, gusting to 20 mph, in the afternoon.
Friday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 12°. Wind west around 7 mph, gusting to 17 mph.
Saturday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. Breezy. High 16°. UV index up to 3. Wind west-southwest around 13 mph, gusting to 23 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Patchy light fog. A slight chance of rain in the evening, then a chance of rain after midnight. Low 12°. Wind west-southwest around 10 mph, gusting to 19 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 16°. UV index up to 3. Wind west-northwest around 13 mph, gusting to 22 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 12°. Wind west-northwest around 11 mph, gusting to 20 mph.
Monday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. Breezy. High 21°. UV index up to 5. Wind west around 13 mph, gusting to 24 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Monday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A chance of rain. Low 14°. Wind west-southwest around 10 mph, gusting to 19 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.