Rain is likely this evening, lasting into early Saturday morning. Overnight lows will range from 49 degrees in International Falls to 63 degrees in Siren.

After the fog dissipates, the First State is due for some heavy rain. New Castle County: The region will see a 30% chance of rain on Tuesday and a 100% chance Tuesday night and Wednesday.

Precipitation fog forms when relatively warm rain falls through cold air close to the ground. The colder air allows the rain to evaporate. That evaporation uses up some of the heat in the atmosphere.

The future of San Francisco’s iconic fog has been debated in media stories during recent years, and some experts note a diminished cloud cover along the California coast that could lead to a warming ...

Rain, freezing rain, sleet. How are they different and what do they mean? Also, graupel? ... Freezing fog, freezing rain, sleet or graupel? Winter precipitation explained. Published: Jan. 06, 2017 ...

Precipitation fog forms when cooler rain droplets fall through warmer air. This phenomenon is usually associated with rain along warm fronts.