Expires:202607191100;;203764 FPUS53 KUNR 182355 ZFPUNR Zone Forecast for Western SD and Northeastern WY National Weather Service Rapid City SD 554 PM MDT Sat Jul 18 2026 SDZ026-191100- Rapid City- Including the city of Rapid City 554 PM MDT Sat Jul 18 2026 ...HEAT ADVISORY IN EFFECT UNTIL 9 PM MDT SUNDAY... .TONIGHT...Partly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .SUNDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Hot with highs around 101. South winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows around 70. West winds 5 to 10 mph. Chance of rain 20 percent. .MONDAY...Sunny. Highs in the upper 90s. North winds 10 to 20 mph. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. North winds 10 to 20 mph, becoming northwest 5 to 10 mph after midnight. .TUESDAY...Partly cloudy. Highs in the upper 80s. .TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 40 percent. .WEDNESDAY...Becoming partly cloudy. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 30 percent. .THURSDAY...Mostly cloudy with a chance of showers in the morning, then partly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 percent. .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. Chance of rain 20 percent. .FRIDAY...Partly cloudy in the morning, then clearing. Highs in the lower 90s. .FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows in the upper 60s. .SATURDAY...Partly cloudy in the morning, then mostly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 30 percent. $$