Expires:202512212000;;953769 FPUS52 KGSP 210538 ZFPGSP Zone Forecast Product National Weather Service Greenville-Spartanburg SC 1238 AM EST Sun Dec 21 2025 SCZ013-212000- Union- Including the cities of Union and Monarch Mills 1238 AM EST Sun Dec 21 2025 .OVERNIGHT...Clear. Lows in the mid 30s. Light and variable winds. .SUNDAY...Mostly sunny. Highs in the lower 60s. Northwest winds around 5 mph. .SUNDAY NIGHT...Mostly clear. Lows in the lower 30s. Northeast winds around 5 mph. .MONDAY...Mostly sunny. Highs in the lower 50s. East winds around 5 mph. .MONDAY NIGHT...Mostly clear in the evening, then becoming mostly cloudy. Lows in the mid 30s. Light and variable winds. .TUESDAY...Partly sunny in the morning, then clearing. Highs in the lower 60s. .TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the upper 60s. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. .CHRISTMAS DAY...Mostly sunny. Highs around 70. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. .FRIDAY...Mostly sunny in the morning, then becoming partly sunny. Highs in the lower 70s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 50s. .SATURDAY...Partly sunny. Highs in the upper 60s. $$