Expires:202512220000;;975840 FPUS53 KUNR 211523 ZFPUNR Zone Forecast for Western SD and Northeastern WY National Weather Service Rapid City SD 822 AM MST Sun Dec 21 2025 SDZ030-220000- Custer Co Plains- Including the city of Folsom 822 AM MST Sun Dec 21 2025 .REST OF TODAY...Partly cloudy. Highs in the lower 50s. South winds 5 to 10 mph. Gusts up to 20 mph this afternoon. .TONIGHT...Partly cloudy. Lows in the lower 30s. South winds 10 to 15 mph with gusts up to 25 mph. .MONDAY...Partly cloudy and breezy. Highs in the mid 60s. Southwest winds 20 to 30 mph. .MONDAY NIGHT...Partly cloudy. Lows around 30. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming southwest around 5 mph after midnight. .TUESDAY...Mostly cloudy. Highs in the upper 50s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 30s. .WEDNESDAY...Partly cloudy. Highs in the mid 60s. .WEDNESDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 30s. .CHRISTMAS DAY...Mostly sunny. Highs in the upper 50s. Temperature falling into the upper 40s in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows in the upper 20s. .FRIDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s. .FRIDAY NIGHT...Becoming partly cloudy. Lows in the lower 30s. .SATURDAY...Becoming partly cloudy. Highs in the lower 50s. $$