WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 25-May-2026 09:00 pm
 
Tonight

Mostly Clear
Mostly Clear
Tuesday

Sunny
Sunny
Tuesday
night
Partly Cloudy
Partly Cloudy
Wednesday

Mostly Cloudy
Mostly Cloudy
Wednesday
night
Rain likely
Rain likely
Thursday

Fog a.m.
Fog a.m.
Thursday
night
Fog late
Fog late
Friday

Fog a.m.
Fog a.m.
20 mm.
Low: 17° High: 29° Low: 16° High: 26° Low: 14° High: 23° Low: 13° High: 19°
               
SSE
calm

Calm
N
3
mph
Light air
NW→SSE
2
mph
Light air
SSE→ESE
11-20
mph
Fresh breeze
ESE
10-20
mph
Fresh breeze
ESE→S
11-19
mph
Fresh breeze
SW
12-21
mph
Fresh breeze
SW
10-21
mph
Fresh breeze
UV: 6
 High 
UV: 5
 Medium 
UV: 5
 Medium 
UV: 6
 High 

 

Tonight
 
Mostly clear in the evening, becoming fair after midnight. Mild. Low 17°. Wind south-southeast near calm.
Tuesday
 
Sunny. Near record warmth. High 29°. UV index up to 6. Wind north around 3 mph.
Tuesday night
 
Clear in the evening, becoming fair to partly cloudy after midnight. Mild. Low 16°. Wind northwest around 2 mph in the evening, becoming south-southeast after midnight.
Wednesday
 
Mostly cloudy. Near record warmth. High 26°. UV index up to 5. Wind south-southeast around 11 mph, gusting to 20 mph, in the morning, becoming east-southeast in the afternoon.
Wednesday night
 
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog in the evening, then moderate fog after midnight. A chance of rain in the evening, then rain likely after midnight. Precipitation showery or intermittent. Low 14°. Wind east-southeast around 10 mph, gusting to 20 mph. Chance of precipitation 70 percent. Precipitation mostly around 20 mm.
Thursday
 
Partly cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. Unusually warm. High 23°. UV index up to 5. Wind east-southeast around 11 mph, gusting to 19 mph, in the morning, becoming south in the afternoon.
Thursday night
 
Partly cloudy in the evening, becoming cloudy after midnight. Patchy light fog after midnight. Breezy. Low 13°. Wind southwest around 12 mph, gusting to 21 mph.
Friday
 
Partly to mostly cloudy. Patchy light fog in the morning. Mild. High 19°. UV index up to 6. Wind southwest around 10 mph, gusting to 21 mph.
Friday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind southwest around 6 mph, gusting to 15 mph.
Saturday
 
Partly to mostly cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain in the afternoon. Mild. High 19°. UV index up to 5. Wind south-southwest around 4 mph, gusting to 15 mph, in the morning, becoming west-southwest in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. Rain likely in the evening, then a chance of rain after midnight. Low 11°. Wind south-southwest around 8 mph, gusting to 16 mph, in the evening, becoming 12 mph, gusting to 20 mph, after midnight. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Sunday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. Breezy. High 16°. UV index up to 6. Wind west-southwest around 15 mph, gusting to 24 mph, in the morning, becoming 12 mph, gusting to 24 mph, in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Sunday night
 
Mostly cloudy in the evening, becoming dense overcast after midnight. Patchy light fog after midnight. A chance of rain. Low 12°. Wind south-southwest around 8 mph, gusting to 17 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.

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