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Posted at 10:45 AM ET, 04/29/2010

Forecast: Better days ahead (warmer and sunnier)

By Matt Rogers

* 8 years ago: Tornado devastates La Plata | Saturday's tornadoes *
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Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
9Could've been a full "10" if not for the crisp morning air.
Get tomorrow's 'Digit' on Twitter tonight


Today: Sunny & warmer. 69-73. | Tonight: Mostly clear & not as cool. 48-52. | Tomorrow: Mostly sunny and warmer still. 79-83. | A Look Ahead | Get Express Forecast by E-mail


Are you ready for the big warm-up? Like a continental-sized see-saw, a crashing jet stream out West and cooling will result in a northward surge in the jet stream here on the East Coast and warming. How high will we go? Well, it looks like we could reach up to around 90 in places this weekend and 80s are a real safe bet starting tomorrow. A cold front arrives Monday to send our end of the see-saw back down.

Today (Thursday): Today is a huge turnaround from yesterday's mostly cloudy chiller. We relax those winds (still around 10 mph from the west with some gusts to near 20 mph), push out those clouds (mostly sunny!), and warm up those temperatures (low 70s for afternoon highs in most areas). Confidence: High

Tonight: Mostly clear skies and not quite as cool as the last few nights. Lows should be in the upper 40s to low 50s as light winds arrive from the west and southwest. Confidence: High

Keep reading for the forecast through Monday....

Tomorrow (Friday): Here comes the warm surge. Low 80s are within reach as light winds from the southwest pump in the warmer air mass. Look for mostly sunny skies to highlight a fantastic Friday. Humidity should also remain low so these 80s will be very pleasant 80s. Confidence: Medium-High

Tomorrow Night: By Friday night, the much warmer air mass will have settled in nicely, so that temperatures only drop to the 60s in most spots, with some upper 50s possible in the outer suburbs (for some spots, around a 25-degree bounce from last night's lows!). Look for light winds and mostly clear skies. Confidence: Medium


Saturday, the first day of May, is expected to be the best day of the weekend from a weather perspective as mostly sunny skies, light winds and highs in the mid-to-upper 80s (maybe touching 90 in spots) have an early-summer feel. There is a 20% chance a thunderstorm could hit you late Saturday afternoon or into the evening. Best storm chances seem to be farther north and west away from the city. Partly cloudy Saturday night with lows in the 60s.Confidence: Medium

Sunday should continue the warmth, but more clouds could keep the day more on the partly sunny side. Highs should again run toward the mid-to-upper 80s (or up to around 90 even) and the chance for afternoon and evening thunderstorms edge up to about 30%. The humidity inches higher as well, probably to a more noticeable level. Look for cloudy skies and more shower ot storm chances (30% again) on Sunday night with lows in the 60s. Confidence: Medium

Monday is cold front day. Right now, the timing of the approach and passage appears to be in the morning. That means a cloudy, but probably muggy start to the work week with showers or storms possible during the day (30% chance). Toward midday, winds should shift from out of the south to from the west or northwest, and they could get gusty. Highs should still get up into the 70s at least, and if the cold front slows down even slightly, we could manage some low 80s under variable clouds. Confidence: Low

Cooler weather is aiming to return toward midweek...this is spring after all.

By Matt Rogers  | April 29, 2010; 10:45 AM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: PM Update: Another frost chance before warm-up
Next: Hypothermia in summer: The storms of 8/3/2002


The windshield was about 1/4 frozen then froze with the first wipe and thawed with the washer fluid. The Front Royal park and ride was mild but the Linden park and ride had lots of frost.

Posted by: eric654 | April 29, 2010 5:31 AM | Report abuse

Thanks Eric. It's difficult to believe that with 30s around here this morning, we could be pressing up against 90F by this weekend!

Posted by: MattRogers | April 29, 2010 6:20 AM | Report abuse

I am impressed with the patchy frost, despite DC only getting down to 47-- warmer than last night! And we're already up to 54 at the Convention Center.

Posted by: Camden-CapitalWeatherGang | April 29, 2010 8:27 AM | Report abuse

Weather seems finally to be getting warmer...big downer today is the Caps' premature elimination.

Posted by: Bombo47jea | April 29, 2010 9:37 AM | Report abuse

If there is an upside now I can watch the Nats every night without wearing out the controller.

Posted by: MKadyman | April 29, 2010 10:41 AM | Report abuse

Saturday is the One Day Hike from GTown to Harper's Ferry. With this cold snap we have had, I'm worried people are going to underestimate the heat potential.

Posted by: SPS1 | April 29, 2010 10:52 AM | Report abuse

UV index is a solid 10 all over the region. Be very careful not to expose yourself to too much direct sunlight until 4pm. These are extreme readings. Could go a bit higher before lower today. Solar noon is 1:04PM for most of the Beltway area.

Posted by: Camden-CapitalWeatherGang | April 29, 2010 12:28 PM | Report abuse

I want to believe that the discussion of a mid-week cool-off isn't one that includes another frost warning?? Yesterday afternoon and evening felt a lot more like March than late April!!

Posted by: erbele | April 29, 2010 12:57 PM | Report abuse

Very nice but still breezy out there. Could definitely feel the wind running across Key Bridge.

Posted by: marathoner | April 29, 2010 2:11 PM | Report abuse

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