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Posted at 05:00 AM ET, 08/28/2012

Forecast: Brief cooldown before late-week, last-minute summer heat

EXPRESS FORECAST

Today: AM shower chances. Partly sunny PM. 84-89 | Tonight: Mostly clear, cooler. 60-68.| Tomorrow: Mostly sunny, comfortably warm. 83-87. | Get Express Forecast by E-mail

TODAY'S DAILY DIGIT

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10


Some morning showers possible, but more sun and drier humidity by afternoon boost the day’s digit. Get the Digit on Twitter| Discuss on Facebook

FORECAST IN DETAIL


With September arriving this coming holiday weekend, I didn’t want to have to forecast more 90s for highs. But here they are again, lurking for late week into the start of the weekend. We could edge close to 90 this afternoon too when the sun returns, but today’s situation is accompanied by low humidity. Tomorrow is the best day of the week before heat rebuilds over the area. I think we could possibly see some Isaac remnants edge into the area toward Sun-Mon. Confidence is still low though.

Today (Tuesday): A 30% chance of morning commute showers as a cold front pushes its way through the area. The main impact from the front is to dry out our air to enable more sunshine (by midday and especially afternoon) and lower our humidity. Highs could still manage the mid-to-upper 80s, but dew points drop through the 60s. Breezes from the southwest in the early morning switch to come out of the northwest at 5-10 mph by late morning. Confidence: Medium

Tonight: Mostly clear skies and light winds allow temperatures to drop into the upper 60s for the city and down as low as the low 60s in the outer suburbs. Confidence: Medium-high

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

Tomorrow (Wednesday): I was very close to giving the day a Nice Day sun, but a few spots may edge up above the 85 degree threshold. Most of us should be somewhere in the middle 80s for afternoon highs with very low humidity, light breezes, and lots of sunshine. Confidence: Medium-high

Tomorrow night: I wonder if we should develop a “Nice Night” symbol, because this should easily qualify. Lows range from the cooler middle 50s in the outer suburbs to the very comfortable middle 60s in the city with low humidity under partly cloudy to mostly clear skies. Confidence: Medium-High

A LOOK AHEAD

Thursday finds our pleasant high pressure experience about to exit the area with warmer winds returning. Skies should still be mostly sunny and humidity should only be slightly higher than Wednesday. But temperatures heat up to the mid-to-upper 80s. Partly cloudy Thursday night with lows ranging through the 60s. Confidence: Medium

Friday sees soaring temperatures up into the low-to-mid 90s. Humidity edges a bit higher too to help heat indices rise into the mid-to-upper 90s instead. Skies are expected to be sunny at least as most of us start an extended weekend. Higher humidity Friday night keeps lows in the upper 60s to middle 70s with a few clouds possible. Confidence: Low-Medium

The holiday weekend finds more heat and humidity, especially on Saturday with highs in the low-to-mid 90s, heat indices toward the upper 90s, and partly sunny skies. A 20% chance of late day storms exists, especially west toward the mountains. More clouds move in Saturday night with lows in the upper 60s to mid 70s again. As it looks right now, Sunday into Labor Day Monday look mostly cloudy with highs in the mid-to-upper 80s. Precipitation chances increase from 40% on Sunday to possibly as high as 60% on Monday as the remnants of Isaac attempt to work through the area. Confidence is still low on this detail as the storm’s remnants could still miss the area. Confidence: Low

By  |  05:00 AM ET, 08/28/2012

Categories:  Forecasts

 
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