WASHINGTON COUNTY ZONE FORECAST

 ...SEVERE THUNDERSTORM WATCH 639 IN EFFECT UNTIL 9 PM MDT THIS EVENING...  .TONIGHT...Becoming partly cloudy after midnight. Thunderstorms likely in the evening, then a slight chance of thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and large hail, then some thunderstorms may produce damaging winds and large hail during the late evening hours. Lows in the lower 60s. South winds 10 to 15 mph. Chance of rain 70 percent. .TUESDAY...Mostly sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph in the morning, becoming light. .TUESDAY NIGHT...Mostly clear. Lows in the lower 60s. South winds 10 to 15 mph with gusts up to 20 mph. .WEDNESDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs in the lower to mid 90s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the mid 60s. South winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the upper 80s. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows in the upper 50s. .FRIDAY...Partly cloudy with a 10 percent chance of thunderstorms. Highs near 90. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs in the lower to mid 90s. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows in the lower 60s. .SUNDAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs near 90. .SUNDAY NIGHT...Partly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the upper 50s. Chance of rain 30 percent. .MONDAY...Mostly sunny. Highs in the mid to upper 80s.