Today (Tuesday): It will be mostly sunny with temperatures in the high to mid 90s and slightly warmer, but humidity will be tolerable and dew points will stay in the 50s. Winds will decrease on Monday, with a light wind mainly out of the northwest at 5 to 10 mph, becoming more southwesterly as the sun sets. Confidence: High
tonight: Humidity will return, with a few clouds and lows only dropping into the 70s F. Light winds will be out of the south at 5 to 10 mph. Reliability: High
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Tomorrow (Wednesday): While there is no official “average day” that equates to a “good day,” this day easily meets that criteria. It will be mostly sunny from morning through midday, with temperatures rising to the mid to near 100°F. Humidity will be moderate to high (dew points in the mid to upper 60s F), and the heat index will reach 100 to 105. If you must be outdoors, use caution and stay hydrated. The highest temperature recorded on the calendar in Washington DC was 101° in 1952.
Showers and thunderstorms possible by late afternoon or evening. Some storms may be severe with strong winds and large hail. Many locations will get at least 1/4 to 1/2 inch of rain, with locally heavier amounts possible in some locations. Winds will be from the southwest at 10 to 15 mph, with higher gusts near the storm’s edge. Reliability: Medium
tomorrow night: Scattered showers and thunderstorms will be possible in the evening and overnight, with lows dropping into the mid to lower 60s Fahrenheit and partly to mostly cloudy skies. Reliability: Moderate
Thursday and Friday Mostly sunny (though some clouds may remain early Thursday morning), with highs in the upper 80s and low to moderate humidity. A slight chance of showers or thunderstorms each day in the late afternoon or evening. Partly cloudy Thursday and Friday night with lows dropping into the 60s to near 70s Thursday night and rising into the 70s with increased humidity Friday night. Confidence: Moderate
of weekend Humidity will return to moderate to high with highs in the low 90s on Saturday and mid 90s on Sunday, with partly sunny skies. Rain and storms will again be a possibility, especially on Sunday judging by current conditions. Saturday night will be partly to mostly cloudy and muggy, with lows in the mid to upper 70s F, with rain and storms possible. Reliability: Moderate
