Fri Feb 21 11:45:31 PM EST 2025 Williamson- Including the city of Herrin 1043 PM CST Fri Feb 21 2025 .TONIGHT...Partly cloudy. Cold with lows around 13. Calm winds. .SATURDAY...Sunny. Highs in the mid 30s. Southwest winds around 5 mph. .SATURDAY NIGHT...Clear. Lows in the lower 20s. Southwest winds around 5 mph. .SUNDAY...Sunny. Highs in the mid 40s. Southwest winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the lower 30s. Southwest winds 5 to 10 mph. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the mid 50s. Lows around 40. .TUESDAY...Sunny. Highs around 60. .TUESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. A 40 percent chance of rain. Highs around 60. Lows in the upper 30s. .THURSDAY...Partly sunny. Highs in the upper 40s. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the lower 30s. Highs in the lower 50s.