Radar courtesy MyRadar | ？ OpenStreetMap contributors

       * Thunderstorm watch for Frederick and Carroll counties until 10 p.m. | Flash flood watch 2 p.m. Thursday to 8 a.m. Friday *

       It was the hottest day of the year thus far for most spots, as temperatures in Washington rose to at least 95 degrees. Highs in the mid- and upper 90s felt only that much worse with the high humidity pushing heat index values near 105. Fortunately, we’re nearing the end of this heat spell. It’s about to come to a halt with rain.

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       Through Tonight: Isolated to widely scattered showers or storms remain possible into the overnight hours. Many spots stay dry, and the storm risk should wane after midnight, but some additional showers may work into the area by sunrise. Lows range from the low 70s in the cooler suburbs to the upper 70s downtown.

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       View the current weather at The Washington Post.

       Tomorrow (Thursday): We may have some showers around in the morning, but rain odds grow into the afternoon, when showers and thunderstorms become likely as skies remain partly to mostly cloudy. Some strong to severe storms, with the potential for strong winds or an isolated tornado, are a good bet, as well. Plus the front is moving slowly, so storms may repeatedly move over the same spots, causing some flooding. Highs range from the mid-80s to around 90, depending on how much sunshine we see.

       See Dan Stillman’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter and Instagram. For related traffic news, check out Gridlock.

       Rain: Widespread rainfall totals around 1.5 to 2.5 inches are a good bet with the slow-moving cold front that passes Friday. Some spots could end up with four or more inches of rain, especially if storms repeatedly cross the same region. This could lead to at least scattered flash flooding by late Thursday.

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