D.C. area forecast: Another afternoon storm threat today, and turning cooler this weekend

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

7
Muggy mid-80s to ~90. Oof. Thankful for clouds shrouding the sun and possible PM cooling showers/storms!

Express Forecast

Today: More clouds than sun. PM showers and storms possible. Highs: Mid-80s to around 90.

Tonight: Evening rain drops? Slow clearing. Lows: Upper 60s to low 70s downtown.

Tomorrow: Very cloudy. Showers possible, along with a rumble. Highs: Upper 70s to low 80s.

Sunday: Diminishing clouds, lower rain chances. Highs: Mid-70s to around 80.

FORECAST IN DETAIL


Radar & lightning: Latest regional radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

This somewhat persistent cloud cover with pesky rain chances embedded in our muggy air may not start clearing until Sunday afternoon or so. Get used to it. If you are like me, you have all eyes on early next week’s drier air, clearer skies, and comfortable high temperatures. Let’s try to slog through some of the greyness and make it out to the other side.

Today (Friday): Similar to yesterday, we may stay a bit hazy and murky under partly to mostly cloudy skies. We have a 50/50 chance of (late afternoon and evening) storms. The morning hours have the best chance at staying dry–with only a 15-25% chance of morning rain. Showers and storms could stay isolated until perhaps mid-afternoon when they could become a little more widespread. Mid-80s to around 90 won’t feel so great with accompanying humidity pretty close to oppressive levels (dew points around 70). Winds could vary in direction, but remain light, under 10 mph. They may slowly shift from southwest to out of the north. Confidence: Medium

Tonight: Showers and thunderstorm are fairly likely through the evening (45-55% chance). We could have some downpours out of these, so do be mindful of localized ponding or flash flooding. When not raining, skies could stay fairly to overcast. A 5-10 mph breeze, generally out of the east, should persist for much of the evening and overnight hours. Low temperatures, insulated by clouds which prevent them from cooling much, should level off in the upper 60s to lower 70s. Confidence: Medium

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

Tomorrow (Saturday): It’s looking very cloudy with more rain possible. Give thanks to an east-northeast 10 mph breeze off of the ocean and Bay. Even during morning hours we run a 35% chance of a shower or two. By the afternoon, rain chances should hover around 50%, with muggy dew points (in the upper 60s) hanging tough. A thunderstorm with an accompanying downpour is more possible during afternoon hours as well, though we’ll be stabilizing on the ocean air so rumbles could be tougher to come by. High temperatures remain muted with the clouds and moisture, only reaching the upper 70s to lower 80s. If we see more rain than currently expected from the easterly flow, subtract several degrees from above projections. Confidence: Low-Medium

Tomorrow night: Mostly cloudy conditions prevail, with a 20-30% chance of showers and late-night drizzle developing. It may require an umbrella, if you are staying out late and want to play it safe and dry. Low temperatures remain a bit balmy and don’t cool too much under the thick clouds–perhaps into the mid-to-upper 60s. Confidence: Medium

Sunday: Skies may slowly clear and allow us to see some sunshine and drier air. Shower chances, cloud chances, and humid dew points all start to drop. Be patient though. A light northeasterly breeze could continue as well, keeping us in this “wedge” of clouds off of the ocean and Bay for a bit. At least temperatures should still make it into the mid-70s to around 80. We could look forward to this being a decent day, as rain chances slide from 25% in the morning to 15% by afternoon. Should clouds clear earlier than expected, add a few degrees of warmth onto our high temperature range estimate. Confidence: Medium

A LOOK AHEAD

Sunday night: Skies may stay partially cloudy for most of the night, but some stars should be visible as well. Low temperatures downtown, before dawn, may bottom around 60! That is mighty inviting for… windows opening? Outside of the Beltway, 50s look likely (and opening the windows seems like a guaranteed great idea). Confidence: Medium

Our Monday could be a fantastic first day of school for some of you. Cool but comfortable when waiting at the bus stop during the morning, we still get comfortably warm into upper 70s to low 80s for high temperatures. Partly to mostly sunny skies and a very isolated shower chance (10%) should facilitate an easy, enjoyable recess–for kids and adults alike. Confidence: Medium-High

Tuesday looks great and still comfortable–perhaps just a smidge warmer–with high temperatures around 80 to mid-80s. Skies should stay mostly sunny, which is still strong enough to please summer weather lovers. Especially when considering some moderate humidity may slowly creep back in. Confidence: Medium

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