WASHINGTON COUNTY ZONE FORECAST

 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM MDT THIS EVENING...  .REST OF TODAY...Mostly sunny. Slight chance of thunderstorms late in the afternoon. Highs around 103. Chance of precipitation 10 percent. .TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the evening. Lows in the upper 60s. South winds 10 to 15 mph with gusts up to 20 mph in the evening, becoming light. Chance of precipitation 20 percent. .MONDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs in the upper 90s. North winds 10 to 20 mph with gusts up to 25 mph. Chance of precipitation 20 percent. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Some thunderstorms may produce gusty winds. Lows in the lower 60s. .TUESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs around 90. East winds 10 to 15 mph with gusts up to 20 mph. .TUESDAY NIGHT...Thunderstorms likely. Lows in the upper 50s. Chance of precipitation 60 percent. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the lower 80s. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the upper 50s. .THURSDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs in the mid 80s. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows in the upper 50s. .FRIDAY THROUGH SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs in the mid to upper 80s. Lows in the upper 50s.