WASHINGTON COUNTY ZONE FORECAST

 ...FROST ADVISORY IN EFFECT UNTIL 8 AM MDT THIS MORNING...  .TODAY...Mostly sunny. Highs in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph in the afternoon. .TONIGHT...Mostly clear. Slight chance of thunderstorms in the evening. Lows in the mid 40s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent. .THURSDAY...Mostly sunny. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY NIGHT...Partly cloudy with a 10 percent chance of thunderstorms. Lows near 40. Northwest winds 10 to 20 mph with gusts up to 30 mph. .FRIDAY...Mostly sunny. Highs in the upper 60s. North winds 10 to 15 mph with gusts up to 20 mph. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows in the mid 40s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the mid 70s. Lows in the mid 40s. .SUNDAY...Partly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the mid 70s. Chance of rain 30 percent. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows in the mid 40s. .MEMORIAL DAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs in the lower 70s. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows in the mid 40s. Highs in the upper 70s.