WASHINGTON COUNTY ZONE FORECAST

 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM MDT FRIDAY...  .TONIGHT...Partly cloudy. A 10 percent chance of thunderstorms early in the evening. Lows in the mid 60s. South winds 10 to 15 mph with gusts to around 25 mph. .FRIDAY...Mostly sunny. Highs 98 to 102. West winds 10 to 15 mph in the morning becoming light. .FRIDAY NIGHT...Mostly clear. Lows in the upper 60s. South winds 10 to 20 mph. .SATURDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs around 100. Northwest winds 10 to 20 mph with gusts to around 30 mph. .SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows in the lower 60s. Northeast winds 10 to 20 mph with gusts to around 30 mph. .SUNDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the upper 80s. .SUNDAY NIGHT...Showers likely and chance of thunderstorms. Lows in the lower 60s. Chance of precipitation 60 percent. .MONDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs in the upper 80s. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the lower 60s. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Highs in the lower 90s. Lows in the lower 60s. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the lower 80s. .WEDNESDAY NIGHT...Rain showers likely and chance of thunderstorms. Lows in the upper 50s. Chance of precipitation 60 percent. .THURSDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the lower 80s.