WXSIM Forecast for: Colwyn Bay
Issued by: Saratoga-Weather.org
Updated: Monday, 17-Aug-2026 06:00 am
 
Today

Fog a.m.
Fog a.m.
Tonight

Rain likely
Rain likely
Tuesday

Fog a.m.
Fog a.m.
Tuesday
night
Fog late
Fog late
Wednesday

Fog a.m.
Fog a.m.
Wednesday
night
Chance rain
Chance rain
Thursday

Rain likely
Rain likely
Thursday
night
Chance rain
Chance rain
<2 mm. 5 mm. <2 mm. <2 mm. <2 mm. <5 mm. 10 mm. <5 mm.
High: 19° Low: 15° High: 17° Low: 12° High: 16° Low: 11° High: 14° Low: 11°
               
NW
7-17
mph
Moderate breeze
WSW
6-15→11-18
mph
Moderate breeze
W
12-21
mph
Fresh breeze
W
9-17
mph
Moderate breeze
WSW
11-20
mph
Fresh breeze
SW
8-19
mph
Fresh breeze
NNW
9-20
mph
Fresh breeze
NNW
7-15→2
mph
Moderate breeze
UV: 2
 Low 
UV: 3
 Medium 
UV: 3
 Medium 
UV: 3
 Medium 

 

Today
 
Cloudy in the morning, becoming dense overcast in the afternoon. Light to moderate fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 19°. UV index up to 2. Wind northwest around 7 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tonight
 
Cloudy. Patchy light fog. Rain likely. Low 15°. Wind west-southwest around 6 mph, gusting to 15 mph, in the evening, becoming 11 mph, gusting to 18 mph, after midnight. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
Tuesday
 
Cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. Breezy. High 17°. UV index up to 3. Wind west around 12 mph, gusting to 21 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Tuesday night
 
Mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. A chance of rain. Low 12°. Wind west around 9 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday
 
Mostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. Light to moderate fog in the morning. A chance of rain. High 16°. UV index up to 3. Wind west-southwest around 11 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Wednesday night
 
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Light to moderate fog. A slight chance of rain in the evening, then a chance of rain after midnight. Low 11°. Wind southwest around 8 mph, gusting to 19 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Thursday
 
Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Light to moderate fog in the morning, then patchy light fog in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. High 14°. UV index up to 3. Wind north-northwest around 9 mph, gusting to 20 mph. Chance of precipitation 70 percent. Precipitation mostly around 10 mm.
Thursday night
 
Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Patchy light fog. A chance of rain. Low 11°. Wind north-northwest around 7 mph, gusting to 15 mph, in the evening, becoming 2 mph after midnight. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday
 
Partly to mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 15°. UV index up to 4. Wind west near calm in the morning, becoming north-northeast around 5 mph in the afternoon. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
Friday night
 
Partly cloudy. Patchy light fog in the evening, then moderate fog after midnight. A chance of rain in the evening, then a slight chance of rain after midnight. Cool. Low 10°. Wind north around 8 mph, gusting to 15 mph, in the evening, becoming 5 mph after midnight. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
Saturday
 
Partly to mostly sunny. Light to moderate fog in the morning. High 16°. UV index up to 4. Wind northwest around 6 mph, gusting to 16 mph.
Saturday night
 
Mostly clear. Cool. Low 10°. Wind northwest around 8 mph, gusting to 16 mph.
Sunday
 
Mostly sunny in the morning, becoming mostly cloudy to cloudy in the afternoon. High 17°. UV index up to 3. Wind northwest around 9 mph, gusting to 18 mph.
Sunday night
 
Cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Cool. Low 11°. Wind northwest around 9 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.