A severe thunderstorm watch is in effect for Nassau County until 9 p.m. A line of thunderstorms approaching from the west can impact parts of Nassau County with briefly heavy rain, strong wind and lightning. That said, these storms are expected to weaken a bit as they continue to move east. Evening plans can be briefly impacted. Have a place of shelter to go to in case a strong thunderstorm moves through where you are. The severe thunderstorm watch may be allowed to expire before 9 p.m. if the threat ends sooner. Stay with News 12 for updates.

TONIGHT: A few scattered showers and a strong thunderstorm chance before 9 p.m. Then, becoming partly cloudy. Warm and muggy overnight with lows in the upper 60s to lower 70s. Wind: southwest 5 to 15 mph.

TUESDAY: Sun and clouds. Chance for a pop-up shower, downpour or brief thunderstorm, but much of the day is expected to be dry. Highs around the middle to upper 80s and still humid. Lows around 70 degrees.

WEDNESDAY: Sun and clouds. Chance for scattered showers in the evening and overnight into Thursday morning. Highs around 84 degrees. Lows near 70 degrees.

THURSDAY: Mostly cloudy with scattered showers in the morning. Then, partly sunny with highs around 86 degrees. Lows near 68 degrees.

FRIDAY: Mostly sunny to partly cloudy. Highs around 82 degrees. Lows near 62 degrees.

SATURDAY: Mostly sunny to partly cloudy. Highs around 82 degrees. Lows near 63 degrees.

SUNDAY: Sun and clouds. Highs around 81 degrees. Lows near 65 degrees.

MONDAY: Sun and clouds. Highs around 81 degrees. Lows near 65 degrees.