Fri Feb 21 05:04:57 PM EST 2025 Union County- Including the city of Clayton 303 PM MST Fri Feb 21 2025 .TONIGHT...Not as cold. Mostly clear. Lows in the lower 20s. .SATURDAY...Not as cool. Mostly sunny. Highs in the mid 50s. Southwest winds around 15 mph in the afternoon. .SATURDAY NIGHT...Cold. Mostly clear. Lows in the upper 20s. Southwest winds around 15 mph, becoming northwest after midnight. .SUNDAY...Mostly sunny. Highs in the mid 60s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 30s. .MONDAY...Mostly sunny. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Clear. Lows in the mid 30s. Highs in the mid 60s. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the mid 30s. Highs in the mid 50s. .WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the upper 20s. Highs in the lower 60s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 30s. .FRIDAY...Partly cloudy. Highs in the upper 60s.