WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Sunday, 30-Aug-2026 11:00 am
 
This
afternoon
Chance rain
Chance rain
Tonight

Chance rain
Chance rain
Monday

Rain likely
Rain likely
Monday
night
Mostly Cloudy
Mostly Cloudy
Tuesday

Mostly Cloudy
Mostly Cloudy
Tuesday
night
Chance rain
Chance rain
Wednesday

Chance rain
Chance rain
Wednesday
night
Mostly Cloudy
Mostly Cloudy
Thursday

Mostly Cloudy
Mostly Cloudy
Thursday
night
Rain likely
Rain likely
<5 mm. 5 mm. 7 mm. <2 mm. 2 mm. 5 mm. <2 mm. <2 mm. 7 mm.
High: 20° Low: 13° High: 15° Low: 11° High: 18° Low: 14° High: 18° Low: 15° High: 19° Low: 14°
                   
S
9-19
mph
Fresh breeze
S→WSW
7-18
mph
Moderate breeze
WNW
15-23
mph
Fresh breeze
WNW→SW
8-21
mph
Fresh breeze
SW
11-21
mph
Fresh breeze
SW
10-19
mph
Fresh breeze
SW
11-20→14-21
mph
Fresh breeze
SW
12-20
mph
Fresh breeze
SW
11-19
mph
Fresh breeze
SW
12-19→8-15
mph
Fresh breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 
UV: 3
 Medium 
UV: 3
 Medium 

 

This afternoon
 
Cloudy. Patchy light fog. A chance of rain. High 20°. UV index up to 2. Wind south around 9 mph, gusting to 19 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Tonight
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Moderate fog in the evening, then light to moderate fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 13°. Wind south around 7 mph, gusting to 18 mph, in the evening, becoming west-southwest after midnight. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. Breezy. High 15°. UV index up to 2. Wind west-northwest around 15 mph, gusting to 23 mph. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Monday night
 
Mostly cloudy to cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 11°. Wind west-northwest around 8 mph, gusting to 21 mph, in the evening, becoming southwest after midnight.
Tuesday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain. Breezy. High 18°. UV index up to 3. Wind southwest around 11 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Dense overcast. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 14°. Wind southwest around 10 mph, gusting to 19 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Wednesday
 
Dense overcast in the morning, becoming mostly cloudy to 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. Breezy. High 18°. UV index up to 3. Wind southwest around 11 mph, gusting to 20 mph, in the morning, becoming 14 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Wednesday night
 
Mostly cloudy to cloudy in the evening, becoming mostly cloudy after midnight. A slight chance of rain. Breezy. Low 15°. Wind southwest around 12 mph, gusting to 20 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday
 
Mostly cloudy to cloudy. A slight chance of rain. High 19°. UV index up to 3. Wind southwest around 11 mph, gusting to 19 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Thursday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Light to moderate fog after midnight. A slight chance of rain in the evening, then rain likely after midnight. Low 14°. Wind southwest around 12 mph, gusting to 19 mph, in the evening, becoming 8 mph, gusting to 15 mph, after midnight. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Friday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Light to moderate fog in the morning, then patchy light fog in the afternoon. Rain likely. High 17°. UV index up to 3. Wind west-northwest around 7 mph, gusting to 17 mph, in the morning, becoming 12 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Friday night
 
Partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog. A slight chance of rain after midnight. Breezy. Low 12°. Wind west around 10 mph, gusting to 17 mph, in the evening, becoming 15 mph, gusting to 26 mph, after midnight. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Breezy. High 16°. UV index up to 3. Wind west around 13 mph, gusting to 23 mph, in the morning, becoming 9 mph, gusting to 20 mph, in the afternoon.
Saturday night
 
Fair in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind southwest around 6 mph.

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