Patchy dense fog could surprise drivers in some of the valleys of northeast Pennsylvania early today.

Be alert for rapidly changing visibility through about 630 or 7 am.

The latest forecast for the week:

Today: Partly sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

Tonight: A slight chance of showers after 9pm. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 20%.

Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night: Patchy fog after midnight. Otherwise, mostly clear, with a low around 63. Light southwest wind.

Wednesday: Mostly sunny, with a high near 86. Calm wind becoming west 5 to 7 mph in the afternoon.

Wednesday Night: Partly cloudy, with a low around 65.

Thursday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then showers and thunderstorms likely after 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

Friday: Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.