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

Rain likely
Rain likely
Tuesday

Chance rain
Chance rain
Tuesday
night
Chance rain
Chance rain
Wednesday

Chance rain
Chance rain
Wednesday
night
Chance rain
Chance rain
Thursday

Chance rain
Chance rain
Thursday
night
Partly Cloudy
Partly Cloudy
Friday

Partly Cloudy
Partly Cloudy
Friday
night
Partly Cloudy
Partly Cloudy
10 mm. <2 mm. 2 mm. 2 mm. <5 mm. <5 mm.
High: 27° Low: 17° High: 23° Low: 14° High: 16° Low: 10° High: 15° Low: 10° High: 18° Low: 11°
                   
SSE
8-22
mph
Fresh breeze
SSE
4
mph
Light breeze
S
9-18
mph
Moderate breeze
SW
10-20
mph
Fresh breeze
W
14-24→17-26
mph
Strong breeze
W
15-24
mph
Fresh breeze
W
12-20
mph
Fresh breeze
WSW
6-17
mph
Moderate breeze
W
6
mph
Light breeze
SW
5→8
mph
Gentle breeze
UV: 3
 Medium 
UV: 3
 Medium 
UV: 4
 Medium 
UV: 4
 Medium 
UV: 4
 Medium 

 

This afternoon
 
Mostly cloudy to cloudy. Unusually warm. High 27°. UV index up to 3. Wind south-southeast around 8 mph, gusting to 22 mph.
Tonight
 
Cloudy. Light to moderate fog. Rain likely in the evening, then a chance of rain after midnight. Low 17°. Wind south-southeast around 4 mph. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Tuesday
 
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. Precipitation showery or intermittent. Warm. High 23°. UV index up to 3. Wind south around 9 mph, gusting to 18 mph. Chance of precipitation 40 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Mostly cloudy. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 14°. Wind southwest around 10 mph, gusting to 20 mph. Chance of precipitation 40 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. Breezy. High 16°. UV index up to 4. Wind west around 14 mph, gusting to 24 mph, in the morning, becoming 17 mph, gusting to 26 mph, in the afternoon. Chance of precipitation 40 percent. Precipitation mostly around 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 and cool. Low 10°. Wind west around 15 mph, gusting to 24 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Thursday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. A chance of rain in the morning, then a slight chance of rain in the afternoon. Breezy and cool. High 15°. UV index up to 4. Wind west around 12 mph, gusting to 20 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Thursday night
 
Partly to mostly cloudy in the evening, becoming fair to partly cloudy after midnight. Cool. Low 10°. Wind west-southwest around 6 mph, gusting to 17 mph.
Friday
 
Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 18°. UV index up to 4. Wind west around 6 mph.
Friday night
 
Fair in the evening, becoming partly cloudy after midnight. Cool. Low 11°. Wind southwest around 5 mph in the evening, becoming 8 mph after midnight.
Saturday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. High 20°. UV index up to 4. Wind southwest around 10 mph, gusting to 20 mph.
Saturday night
 
Fair to partly cloudy. Low 11°. Wind southwest around 9 mph, gusting to 19 mph, in the evening, becoming 6 mph after midnight.
Sunday
 
Partly to mostly cloudy in the morning, becoming cloudy in the afternoon. High 20°. UV index up to 3. Wind southwest around 3 mph in the morning, becoming northwest in the afternoon.
Sunday night
 
Mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 13°. Wind north-northeast around 5 mph.

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