Megan's Forecast: Chilly days with cold nights

Updated: 2019-02-18 20:06:28Z

SAN DIEGO — Highs will top out 5 to 20 degrees below normal this afternoon and with clear skies tonight temperatures are going to plummet. Cold nights with chilly days will be the trend this week.

Drive safe if headed to the mountains as the roads may be snow or ice-covered and several roads are closed due to the poor conditions. Bring chains and extra supplies in case you get stuck and be sure to clean up your trash and take it home with you.

Temperatures will plummet into the 20s and 30s tonight in the valleys where a Frost Advisory goes into effect at 10pm today through 9am tomorrow and again 10pm Tuesday through 9am Wednesday. Take precautions to cover sensitive plants and provide adequate shelter and warmth to your pets.

Temperatures will remain well below normal all week with our next chance for showers Wednesday evening with scattered showers on Thursday possibly lingering into Friday morning. Rainfall accumulations with average between .25" and 1" for the coast and valleys, less than .25" in the deserts and mostly snow in the mountains where we could pick up another 1 to 4" above 3,500'.

Things dry out for the weekend with slightly warmer temperatures, though still cooler than normal. It looks like our active weather pattern is finally coming to an end as the trough of low pressure finally starts to weaken.

Monday's Highs

  • Coast: 55-58°
  • Inland: 50-57°
  • Mountains: 30-45°
  • Deserts: 58-61°

Follow 10News Pinpoint Weather Meteorologist Megan Parry on Twitter @10NewsParry