A Foggy Start and a Midweek Thaw: What to Expect in Charm City Today

Morning: A Muted and Foggy Start

Baltimore residents waking up this Wednesday, February 18, 2026, will find themselves navigating a thick blanket of gray. The National Weather Service has issued a Dense Fog Advisory for the region, which remains in effect until 10:00 AM. Visibility is significantly reduced, particularly near the Inner Harbor and along major transit routes like I-95 and I-83. Early morning commuters are encouraged to allow extra travel time and use low-beam headlights to ensure safety on the damp, misty roads.

Temperatures this morning are hovering around a chilly 36°F, carrying a lingering winter bite. While no widespread ice has been reported, the high humidity—climbing near 100%—combined with the patchy fog may make pavement feel slick in isolated spots. Expect overcast skies to dominate the early hours as the city slowly shakes off the morning chill.

Afternoon: The February Thaw Takes Hold

As the fog lifts by late morning, Baltimore will experience a noticeable shift in the air. We are currently in the midst of a welcome "February thaw." By midday, the clouds will remain, but temperatures are expected to surge well above seasonal averages. Highs are projected to reach the mid-50s, with some parts of the city potentially seeing the mercury climb as high as 57°F.

Winds will remain relatively light, shifting to the south-southwest at approximately 7 mph. This influx of warmer air will make the afternoon feel considerably more like early spring than late winter. Despite the warmth, do not expect much in the way of sunshine; the sky will stay largely gray and overcast throughout the day, maintaining a somewhat moody atmosphere over the Chesapeake Bay.

Evening: Increasing Clouds and Rain Risks

The mild temperatures will persist into the evening, but the primary weather story will transition from warmth to moisture. A 30 percent chance of rain develops during the late afternoon and evening hours as a new weather system approaches from the west. While heavy downpours are not anticipated today, intermittent light rain or drizzle is likely to affect the evening commute and outdoor plans.

Nighttime temperatures will stay relatively elevated compared to typical February nights, dropping to a low between 36°F and 41°F. The persistence of high humidity and cloud cover will prevent the city from cooling down rapidly, keeping the air damp and heavy through the midnight hour.

Weather Alerts and Summary

• Dense Fog Advisory: In effect until 10:00 AM today. Drive with caution.
• Temperature Range: A brisk low of 36°F this morning rising to a high of 57°F this afternoon.
• Precipitation: 30% chance of light rain beginning in the afternoon and continuing into the night.
• Winds: Light winds from the south-southwest at 5 to 10 mph.

Overall, today is a day for layers and caution on the roads. While the warmer temperatures provide a brief respite from the winter freeze, the combination of low visibility this morning and the risk of showers later today means that both umbrellas and patience will be necessary for Baltimoreans.