Thu Feb 20 09:28:34 AM EST 2025 Coastal Chatham- Including the cities of Wilmington Island and Tybee Island 927 AM EST Thu Feb 20 2025 ...COLD WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST FRIDAY... .REST OF TODAY...Partly sunny. Highs in the lower 50s. Northwest winds around 10 mph, increasing to 15 to 20 mph this afternoon. .TONIGHT...Mostly clear. Lows in the upper 20s. Wind chill values as low as 17. North winds 10 to 15 mph. .FRIDAY...Sunny. Highs in the upper 40s. Wind chill values as low as 16 in the morning. North winds 10 to 15 mph. .FRIDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. Northeast winds around 5 mph. .SATURDAY...Mostly sunny. Highs in the upper 50s. Northeast winds 5 to 10 mph. .SATURDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SUNDAY...Mostly sunny. Highs in the lower 60s. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the mid 40s. .MONDAY...Mostly sunny. Highs in the mid 60s. .MONDAY NIGHT...Mostly clear. Lows in the mid 40s. .TUESDAY...Sunny. Highs in the lower 70s. .TUESDAY NIGHT...Clear. Lows in the upper 40s. .WEDNESDAY...Sunny. Highs in the upper 60s.