| WXSIM Forecast for:
Colwyn Bay Issued by: Saratoga-Weather.org |
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| Updated: Sunday, 20-Sep-2026 11:00 am | ||||||||||||||||||||||||||||||||||||||||||||||||
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| This afternoon |
Fair to partly cloudy. High 17°. UV index up to 3. Wind west-northwest around 10 mph, gusting to 20 mph. |
| Tonight |
Partly cloudy in the evening, becoming partly to mostly cloudy after midnight. Low 10°. Wind southwest around 5 mph, gusting to 16 mph. |
| Monday |
Mostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. Mild. High 19°. UV index up to 3. Wind southwest around 5 mph. |
| Monday night |
Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Low 11°. Wind southwest around 3 mph. |
| Tuesday |
Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 18°. UV index up to 2. Wind southwest around 3 mph in the morning, becoming northeast in the afternoon. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm. |
| Tuesday night |
Mostly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain after midnight. Low 13°. Wind south around 3 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm. |
| Wednesday |
Cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Rain likely. High 16°, but temperatures falling in the afternoon. UV index up to 2. Wind south-southwest around 6 mph, gusting to 20 mph, in the morning, becoming north-northwest around 14 mph, gusting to 24 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm. |
| Wednesday night |
Partly to mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog in the evening, then light to moderate fog after midnight. Low 10°. Wind northwest around 10 mph, gusting to 20 mph, in the evening, becoming 3 mph after midnight. |
| Thursday |
Partly cloudy in the morning, becoming partly to mostly cloudy in the afternoon. Moderate fog in the morning, then patchy light fog in the afternoon. High 15°. UV index up to 3. Wind south around 8 mph, gusting to 18 mph. |
| Thursday night |
Mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Breezy. Low 11°. Wind south around 13 mph, gusting to 23 mph, in the evening, becoming west-southwest after midnight. Chance of precipitation 40 percent. Precipitation mostly between 2 and 5 mm. |
| Friday |
Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to moderate fog in the morning. High 17°. UV index up to 3. Wind west-southwest around 8 mph, gusting to 17 mph. |
| Friday night |
Partly to mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 12°. Wind southwest around 11 mph, gusting to 19 mph, in the evening, becoming 7 mph, gusting to 19 mph, after midnight. |
| Saturday |
Partly cloudy in the morning, becoming sunny in the afternoon. Mild. High 19°. UV index up to 3. Wind south-southeast around 3 mph. |
| Saturday night |
Fair to partly cloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. Low 11°. Wind west-northwest around 4 mph in the evening, becoming southwest around 7 mph after midnight. |
WXSIM forecast formatting script by Saratoga-Weather.org.
Animated forecast icons courtesy of www.meteotreviglio.com.