WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Tuesday, 11-Aug-2026 09:00 pm
 
Tonight

Partly Cloudy
Partly Cloudy
Wednesday

Partly Cloudy
Partly Cloudy
Wednesday
night
Partly Cloudy
Partly Cloudy
Thursday

Partly Cloudy
Partly Cloudy
Thursday
night
Mostly Cloudy
Mostly Cloudy
Friday

Chance rain
Chance rain
Friday
night
Fog late
Fog late
Saturday

Fog a.m.
Fog a.m.
<5 mm. <2 mm. <2 mm.
Low: 15° High: 28° Low: 15° High: 28° Low: 16° High: 20° Low: 14° High: 18°
               
S
calm→4
mph
Light breeze
S
6
mph
Light breeze
SSW
3
mph
Light air
ENE→N
2→5
mph
Light breeze
NNW→SSW
3
mph
Light air
WSW→NW
4→7-15
mph
Moderate breeze
NW
11-20
mph
Fresh breeze
NW
11-20
mph
Fresh breeze
UV: 5
 Medium 
UV: 5
 Medium 
UV: 3
 Medium 
UV: 5
 Medium 

 

Tonight
 
Partly cloudy. Low 15°. Wind south near calm in the evening, becoming 4 mph after midnight.
Wednesday
 
Partly cloudy. Near record warmth. High 28°. UV index up to 5. Wind south around 6 mph.
Wednesday night
 
Fair in the evening, becoming fair to partly cloudy after midnight. Low 15°. Wind south-southwest around 3 mph.
Thursday
 
Partly cloudy. Near record warmth. High 28°. UV index up to 5. Wind east-northeast around 2 mph in the morning, becoming north around 5 mph in the afternoon.
Thursday night
 
Partly to mostly cloudy in the evening, becoming mostly cloudy after midnight. Low 16°. Wind north-northwest around 3 mph in the evening, becoming south-southwest after midnight.
Friday
 
Cloudy. A chance of rain. High 20°. UV index up to 3. Wind west-southwest around 4 mph in the morning, becoming northwest around 7 mph, gusting to 15 mph, in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday night
 
Mostly cloudy to cloudy. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 14°. Wind northwest around 11 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Saturday
 
Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A slight chance of rain. High 18°. UV index up to 5. Wind northwest around 11 mph, gusting to 20 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
Saturday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Light to moderate fog after midnight. Low 12°. Wind northwest around 5 mph, gusting to 17 mph.
Sunday
 
Mostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. Light to moderate fog in the morning. A chance of rain. High 16°. UV index up to 2. Wind northwest around 5 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Sunday night
 
Mostly cloudy to cloudy in the evening, becoming dense overcast after midnight. Light to moderate fog after midnight. A slight chance of rain in the evening, then rain likely after midnight. Low 12°. Wind east-northeast around 2 mph in the evening, becoming southeast around 6 mph after midnight. Chance of precipitation 70 percent. Precipitation mostly between 10 and 20 mm.
Monday
 
Cloudy in the morning, becoming mostly cloudy in the afternoon. Patchy light fog. Rain likely in the morning, then a chance of rain in the afternoon. High 18°. UV index up to 3. Wind southeast around 10 mph, gusting to 17 mph. Chance of precipitation 70 percent. Precipitation mostly between 20 and 30 mm.
Monday night
 
Cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog. A chance of rain. Low 13°. Wind east around 6 mph in the evening, becoming south-southeast after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.

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