Forecast: Humidity Retreats, but Heat Repeats
Even after strong fronts blow by in late July, the heat seldom noticeably breaks. But thankfully, these fronts can briefly lower the humidity. Behind the front that set off yesterday's gusty storms, today will be one of those low-humidity days. Unfortunately, the humidity will reassert itself by midweek and we'll have to reintroduce thunderstorms into the forecast as well.
Sunny and dry. 87-91. I wouldn't be surprised if our high temperature is 88 or 89 for the fourth straight day (which is exactly average, by the way). But it won't feel as hot owing to relatively low humidity (dewpoints in the upper 50s) and a delightful breeze from the northwest at 5-10 mph.
Clear and very pleasant overnight with lows in the upper 60s in town, low 60s in the suburbs.
Confidence: High
Keep reading for the forecast through the week.
TOMORROW (TUESDAY)
Very warm, moderately humid. 89-93. Winds will shift around to out of the south and the heat and humidity will increase in response. Afternoon heat indices may top out in the mid 90s with just a light breeze.
Overnight, it will be warm and characteristically muggy, with lows in the mid 70s downtown to near 70 in the suburbs.
Confidence: Medium-High
Wednesday and Thursday will be both be hot and oppressively humid. High temperatures will reach the low-to-mid 90s with heat indices closing in on 100. Thunderstorms are possible both afternoons/evenings, with the best chance on Thursday as a cold front approaches. Confidence: Medium-High
Friday and Saturday should be sunny and dry behind the front, and not as humid. Highs will likely range from 86-90. Confidence: Medium
Sunday may be a bit more humid with a chance of storms as the next front approaches. Highs will likely be in the upper 80s to around 90. Confidence: Low-Medium
By
Jason Samenow
| July 28, 2008; 5:00 AM ET
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Posted by: Murre | July 28, 2008 6:33 AM | Report abuse
Bombocast: Currently 85F, 29.97 rising. Cloudy; cirrostratus, cirrus, parhelion (8:35AM), some altostratus.
Forecast: Today, variably cloudy, 87F. Tonight, clearing, 68F, near 60F outside Beltway. Tomorrow, Warmer, increasing humidity. 90F.
Remarks, more cloudiness than predicted earlier. This is chiefly high cloudiness, and does not seem to presage precipitation at this stage. Identified as cirrostratus due to faint halo and appearance of parhelion (sundog) through ice crystals. TV mets are forecasting 90F today. I'm forecasting lower high due to persistent clouds. If clouds clear this afternoon, temperature could reach 90F.
Posted by: El Bombo | July 28, 2008 12:22 PM | Report abuse
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It is wonderful outside! We have the windows open. If only it could stay like this all day.