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

Rain likely
Rain likely
Tuesday

Rain likely
Rain likely
Tuesday
night
Chance rain
Chance rain
Wednesday

Partly Cloudy
Partly Cloudy
Wednesday
night
Chance rain
Chance rain
Thursday

Mostly Cloudy
Mostly Cloudy
Thursday
night
Chance rain
Chance rain
Friday

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

Partly Cloudy
Partly Cloudy
7 mm. <5 mm. 2 mm. <2 mm. 5 mm. 7 mm. <2 mm. <2 mm.
Low: 9° High: 12° Low: 10° High: 14° Low: 9° High: 18° Low: 9° High: 19° Low: 11° High: 19°
                   
SSE
11-19→14-21
mph
Fresh breeze
S
14-24
mph
Fresh breeze
SSW
14-22
mph
Fresh breeze
WSW
15-24
mph
Fresh breeze
WSW
15-21
mph
Fresh breeze
WSW
14-22
mph
Fresh breeze
S
6
mph
Light breeze
S
6
mph
Light breeze
SSW
3
mph
Light air
N
3
mph
Light air
UV: 3
 Medium 
UV: 5
 Medium 
UV: 5
 Medium 
UV: 4
 Medium 
UV: 5
 Medium 

 

Tonight
 
Dense overcast. Patchy light fog after midnight. Rain likely. Breezy. Low 9°. Wind south-southeast around 11 mph, gusting to 19 mph, in the evening, becoming 14 mph, gusting to 21 mph, after midnight. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
Tuesday
 
Cloudy. Patchy light fog in the morning. Rain likely. Breezy. High 12°. UV index up to 3. Wind south around 14 mph, gusting to 24 mph. Chance of precipitation 60 percent. Precipitation mostly between 2 and 5 mm.
Tuesday night
 
Dense overcast in the evening, becoming mostly cloudy to cloudy after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Breezy. Low 10°. Wind south-southwest around 14 mph, gusting to 22 mph. Chance of precipitation 50 percent. Precipitation mostly around 2 mm.
Wednesday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. A chance of rain. Breezy. High 14°. UV index up to 5. Wind west-southwest around 15 mph, gusting to 24 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday night
 
Partly to mostly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Breezy. Low 9°. Wind west-southwest around 15 mph, gusting to 21 mph. Chance of precipitation 50 percent. Precipitation mostly around 5 mm.
Thursday
 
Mostly cloudy to cloudy. Breezy. High 18°. UV index up to 5. Wind west-southwest around 14 mph, gusting to 22 mph.
Thursday night
 
Mostly cloudy to cloudy in the evening, becoming partly cloudy after midnight. Moderate fog. A chance of rain in the evening. Low 9°. Wind south around 6 mph. Chance of precipitation 60 percent. Precipitation mostly between 5 and 10 mm.
Friday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Light to moderate fog in the morning. A chance of rain in the afternoon. Mild. High 19°. UV index up to 4. Wind south around 6 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Friday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 11°. Wind south-southwest around 3 mph.
Saturday
 
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain. Mild. High 19°. UV index up to 5. Wind north around 3 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Partly to mostly cloudy. Low 11°. Wind northwest near calm.
Sunday
 
Partly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Mild. High 20°. UV index up to 6. Wind north around 4 mph.
Sunday night
 
Clear. Patchy light fog after midnight. Low 10°. Wind southwest around 3 mph in the evening, becoming south-southeast after midnight.

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