It's hard to find a pleasant forecast anywhere in Maryland this week. There are alerts for excessive heat and poor air quality alerts up for almost the entire state for Thursday. The only exception is if you head west, to Garrett or Allegany counties, the only alert-free zone.

For the rest of the state, it's hot and hotter.

The excessive-heat watch takes effect Thursday afternoon for all of Maryland east of Allegany County, including the Eastern Shore. It warns of high temperatures in the upper 90s to 100 degrees, and heat index values as high as 111 degrees.

There appears no chance for a shower Thursday, as forecast temperatures rise to 99 degrees for BWI-Marshall Airport, and heat index values go to 109 degrees.

Friday's predicted high is 100 degrees at the airport, and 104 degrees downtown, with a 30 percent chance of some scattered showers and storms. Saturday looks hot, too, with a high of 100 (102 downtown) before the forecast highs drop back into the 90s on Sunday and the 80s by Tuesday.

frank.roylance@baltsun.com

Maryland weather blog: Frank Roylance on meteorology

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