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Posted at 8:30 AM ET, 04/26/2010

Forecast: Showers, cooling, and then warming

By Jason Samenow

* Temps, clouds & more: Weather Wall | Get There *

Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
5Except for a couple periods of showers, an OK day.
Get tomorrow's 'Digit' on Twitter tonight


Today: Chance of showers and t'storms. 65-70. | Tonight: A few showers, turning chilly. 40-45. | Tomorrow: Variably cloudy and cooler, slight chance of a.m. showers. Low 60s. | A Look Ahead | Get Express Forecast by E-mail


It's a bit of a topsy-turvy week in the weather department. Today it's seasonably mild but with the threat of rain before we cool down tomorrow and Wednesday. Thursday and Friday we'll enjoy some beautiful days, warming back up into the 70s. Warm conditions probably stretch into the weekend, but the proximity of a front may bring back the chance of scattered late day thunderstorm activity.

Radar: Latest regional radar shows movement of precipitation over past three hours. Powered by HAMweather. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Today (Monday): Just like both weekend days, showers and thunderstorms are a possibility (50-60% chance), but significant parts of the day will be dry with variably cloudy skies. The approach and passage of a cold front will be the trigger for any rainfall -- with a period of showers possible this morning and showers and thunderstorms in the afternoon. A few storms could produce gusty winds and some small hail. Highs will be near 70. Confidence: High

Tonight: Occasional showers are possible (40-50% chance), but shouldn't amount to much. Rainfall potential is around 0.25". Temps will turn chilly, dropping down from 40-45 (suburbs-city). Confidence: Medium-High

Keep reading for the forecast through the week...

Tomorrow (Tuesday): This day will more closely resemble late March than late April with a brisk wind (from the northwest at 15-20 mph, with some higher gusts), a chance of showers, and chilly temps. Highs will only climb to around the low 60s. The shower chances aren't too impressive -- just 30-40% and mainly in the morning. Some sunshine should emerge through variably cloudy skies in the afternoon. Confidence: Medium-High

Tomorrow Night: Skies gradually clear and it will become quite cool -- especially considering a steady breeze from the northwest . Lows fall all the way down into the upper 30s in the colder suburbs to the low-to-mid 40s downtown. Confidence: Medium-High


The winds calm down some Wednesday and we also see more sunshine thanks to high pressure building in from the west. Highs head up into the mid-to-upper 60s. Clear, cool and calm overnight, with lows in the upper 30s in the colder suburbs to the upper 40s downtown. Confidence: Medium

Thursday and Friday both look like winners with high pressure drifting by to our south. Both days should experience a ton of sunshine and warming temperatures. Highs Thursday near 70 warming to the mid-to-upper 70s Friday. Overnight lows should range from the mid-40s to low 50s. Confidence: Medium

High pressure off the Southeast coast will serve to pump up warm air for the weekend. Highs both days should reach well into the 70s if not near or above 80. We'll have to watch a nearby frontal boundary which could set off some t'storms either day. Confidence: Low-Medium

By Jason Samenow  | April 26, 2010; 8:30 AM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: Severe T'storm Watch dropped for metro region
Next: Tornado Alley: What's that???


Are you guys aware that the "yesterday at DCA" info box hasn't displayed any information for the last week or so?

Posted by: johnsoncg | April 26, 2010 7:08 AM | Report abuse

I'm hoping it makes it to the big 6.0 because I'm helping friends move today. But so far a kinda dreary start out here in the Valley.

Posted by: eric654 | April 26, 2010 7:17 AM | Report abuse

Playing golf in Mannassas this afternoon...seems like a 50-50 chance of dry vs wet?

Posted by: SA-Town | April 26, 2010 7:35 AM | Report abuse

SA-Town - the earlier this afternoon you can play, the better. Be careful! if you hear any thunder, stay off the course.

eric654 - it shouldn't feel too chilly today since we'll have lots of moisture/humidity around. Hope it makes the move more comfortable?

johnsoncg - thanks for the heads-up on this.

Posted by: Camden-CapitalWeatherGang | April 26, 2010 8:21 AM | Report abuse


Camden is right: Try to play earlier today -- especially if you don't mind getting a little wet due to some morning showers. After that, you may catch a break with the best chance of any thunder (it's not a certainty) late in the afternoon or early evening.


We're aware of the problem and sorting it out. The National Weather Service feed to that info died and we're trying to get them to get it back running.

Posted by: Jason-CapitalWeatherGang | April 26, 2010 8:44 AM | Report abuse

Jason - Congratulations on being named the GMU Climate Change Communicator of the Year. I just saw this article on the George Mason University website:

Posted by: darditi | April 26, 2010 8:45 AM | Report abuse


Thanks for the congrats. That award recognizes my work for my other job. (I necessarily steer clear of climate change talk here).

Posted by: Jason-CapitalWeatherGang | April 26, 2010 8:51 AM | Report abuse

Dropped the digit down one notch due to gloomy start and the likelihood of some showers this morning. Still think we'll see a break midday before more showers or storms threaten later.

Posted by: Jason-CapitalWeatherGang | April 26, 2010 8:54 AM | Report abuse

Well I can't say there is any lack of moisture. The light and intermittent rain now includes patches of moderate rain. Hopefully we will catch a few breaks for loading and unloading.

Posted by: eric654 | April 26, 2010 9:00 AM | Report abuse

we are playing 1 p.m - 5 p.m.

Posted by: SA-Town | April 26, 2010 9:11 AM | Report abuse

True story to show the difference in temps,etc.

Yesterday I was in Point of Rocks, Md (southwest Frederick County) and the temperature was 52. At 3pm I drove home to NW Montgomery County (14 miles) and it was 74 when I got home.

Posted by: MKadyman | April 26, 2010 9:12 AM | Report abuse

@MKadyman It sounds like you moved from one air mass to another. Or the air mass itself moved. Or, geography aside, the daytime warming warmed so much that the temp went up 20-something degrees.

This reminds me of 5 or 6 summers ago when I was at a friend's house and one of those summer pop-corn thunderstorms rolled in. It was raining in his front yard, so we went inside and shortly discovered that it wasn't raining in the back. I love it when stuff like that happens.

Posted by: SpeedLimit186000 | April 26, 2010 11:20 AM | Report abuse

Always be careful going outdoors when "popcorn" thunderstorms are around--the lightning can zap you even when it's not raining! It got a lady waiting at a bus stop a couple of summers ago here in the District.

Geenerally lightning causes more fatalities than hurricanes or tornadoes.

Posted by: Bombo47jea | April 26, 2010 1:02 PM | Report abuse

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