Tomorrow promises to bring mild and beautiful conditions across much of the U.S., offering a reprieve from recent wintry weather in many regions before rain and storm systems make a comeback early in the week.

A Pleasant Sunday in Most Areas

• Northeast and Mid-Atlantic:
  A clear and mild day is forecast for cities like New York, Boston, and Washington, D.C. Daytime temperatures will reach the upper 40s°F to low 50s°F, making it ideal for outdoor activities. Light winds and abundant sunshine are expected in most parts of the region, though evening temperatures will dip into the 30s°F.
• Southeast:
  The Southeast, from Atlanta to the Carolinas, will experience a calm and sunny day. Highs will range between 50°F and 65°F, depending on proximity to the coast. In Florida, Miami will bask in warm temperatures of around 80°F with partly sunny skies.
• Midwest:
  After a week of fluctuating conditions, the Midwest will enjoy a tranquil Sunday. Chicago, Detroit, and Minneapolis will see highs in the upper 30s°F to mid-40s°F under partly cloudy skies. Winds will remain light, offering a comfortable day despite the chill in the air.
• West Coast and Pacific Northwest:
  The West Coast will continue its streak of mild weather, with Los Angeles expecting highs near 70°F and sunny skies. San Francisco will be cooler at around 60°F. The Pacific Northwest, including Seattle, will enjoy a rare break from rain, with cloudy but dry conditions and highs in the upper 40s°F.

Rain Returns Early Next Week

As the weekend wraps up, weather patterns will begin to shift, ushering in precipitation for several regions starting late Sunday into Monday.

• Northeast and Mid-Atlantic:
  A developing low-pressure system will bring rain late Sunday night into Monday for parts of the Mid-Atlantic and Northeast. While the precipitation will primarily be rain, some areas in New England may see a mix of rain and snow.
• Southeast:
  A frontal system moving through the Gulf Coast will bring showers and thunderstorms starting Monday. Coastal areas, particularly in Louisiana and Florida, will see higher precipitation chances.
• Midwest:
  Rain is expected to spread across the central Plains into the Midwest. Areas like St. Louis and Kansas City may see rain showers by Sunday evening, transitioning to snow in northern regions by Monday.
• West Coast and Pacific Northwest:
  The Pacific Northwest will experience a resurgence of rain and mountain snow as a cold front moves inland late Sunday. Seattle and Portland should prepare for wet conditions through early next week.

Preparing for the Week Ahead

The beautiful Sunday will offer a chance to enjoy outdoor activities or prepare for the wet and potentially disruptive conditions coming in the following days. Travelers should monitor forecasts for updates, especially in regions expecting wintry weather or thunderstorms.

This blend of mild and rainy conditions highlights the transitional nature of December weather in the U.S., offering moments of calm before active systems bring more dynamic weather changes.