WASHINGTON COUNTY ZONE FORECAST

 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM MDT THIS EVENING...  .TONIGHT...Mostly clear. Lows in the upper 60s. Southeast winds 10 to 15 mph shifting to the south after midnight. .SATURDAY...Partly cloudy. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 90s. West winds 10 to 15 mph shifting to the north with gusts to around 35 mph in the afternoon. .SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 60s. North winds 10 to 20 mph. Gusts up to 35 mph in the evening. .SUNDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the upper 80s. East winds 10 to 20 mph with gusts to around 35 mph. .SUNDAY NIGHT...Showers likely and chance of thunderstorms. Lows in the lower 60s. Southeast winds 10 to 20 mph with gusts to around 30 mph. 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 20 percent chance of thunderstorms. Lows in the mid 60s. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower 90s. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. 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 50 percent chance of thunderstorms. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the upper 50s. .FRIDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs in the lower 80s.