WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Wednesday, 09-Sep-2026 06:00 am
 
Today

Chance rain
Chance rain
Tonight

Mostly Cloudy
Mostly Cloudy
Thursday

Chance rain
Chance rain
Thursday
night
Fog
Fog
Friday

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

Rain likely
Rain likely
Saturday
night
Chance rain
Chance rain
5 mm. <5 mm. <2 mm. 7 mm. 2 mm.
High: 13° Low: 11° High: 17° Low: 12° High: 17° Low: 12° High: 18° Low: 14°
               
NW
12-21→9-18
mph
Fresh breeze
SW
4→8
mph
Gentle breeze
S
9-19→13-21
mph
Fresh breeze
SW
11-21→7
mph
Fresh breeze
W
8-16
mph
Moderate breeze
SSW
5→10-24
mph
Fresh breeze
S
19-28→12-21
mph
Strong breeze
SSW
9-15
mph
Moderate breeze
UV: 2
 Low 
UV: 2
 Low 
UV: 3
 Medium 
UV: 2
 Low 

 

Today
 
Mostly cloudy to cloudy in the morning, becoming mostly cloudy in the afternoon. A chance of rain. High 13°. UV index up to 2. Wind northwest around 12 mph, gusting to 21 mph, in the morning, becoming 9 mph, gusting to 18 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Tonight
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. Low 11°. Wind southwest around 4 mph in the evening, becoming 8 mph after midnight.
Thursday
 
Mostly cloudy to cloudy in the morning, becoming dense overcast in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 17°. UV index up to 2. Wind south around 9 mph, gusting to 19 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.
Thursday night
 
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog. A chance of rain. Low 12°. Wind southwest around 11 mph, gusting to 21 mph, in the evening, becoming 7 mph after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. High 17°. UV index up to 3. Wind west around 8 mph, gusting to 16 mph.
Friday night
 
Partly cloudy in the evening, becoming cloudy after midnight. Low 12°. Wind south-southwest around 5 mph in the evening, becoming 10 mph, gusting to 24 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 around 19 mph, gusting to 28 mph, in the morning, becoming 12 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Saturday night
 
Dense overcast. Patchy light fog. A chance of rain. Low 14°. Wind south-southwest around 9 mph, gusting to 15 mph. Chance of precipitation 50 percent. Precipitation mostly around 2 mm.
Sunday
 
Mostly cloudy in the morning, becoming cloudy in the afternoon. Patchy light fog. A chance of rain. High 16°. UV index up to 2. Wind west-southwest around 8 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Sunday night
 
Cloudy. Low 13°. Wind southwest around 5 mph.
Monday
 
Mostly sunny in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. Mild. High 20°. UV index up to 3. Wind south-southwest around 7 mph, gusting to 16 mph, in the morning, becoming 12 mph, gusting to 19 mph, in the afternoon.
Monday night
 
Cloudy in the evening, becoming dense overcast after midnight. A chance of rain. Breezy. Low 16°. Wind south-southwest around 14 mph, gusting to 21 mph, in the evening, becoming 17 mph, gusting to 25 mph, after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Tuesday
 
Cloudy in the morning, becoming mostly sunny in the afternoon. Patchy light fog in the afternoon. A slight chance of rain. Breezy. High 18°. UV index up to 3. Wind south-southwest around 13 mph, gusting to 23 mph, in the morning, becoming west around 10 mph, gusting to 19 mph, in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Fair in the evening, becoming partly cloudy after midnight. Patchy light fog. Low 11°. Wind west around 8 mph, gusting to 17 mph, in the evening, becoming northwest around 12 mph, gusting to 20 mph, after midnight.

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