100 Heat Index For Montgomery County; Advisory Issued

MONTGOMERY COUNTY, MD — Remember last week when Montgomery County had some breaks in the rain, the humidity dropped and it was a decent weekend for boating, fishing, hanging out at the beach? It's over, at least for a few days, prompting Montgomery County to issue a Hyperthermia Alert for Tuesday.

With a heat index expected to hit 100, the alert will be in effect until 11 a.m. to 7 p.m.

A hazardous weather outlook and an air quality have been issued for the next three days as the feels-like temperature is supposed to continue to zoom past 100 degrees, according to the National Weather Service.

For folks with asthma or heart conditions, the heat and humidity make being outdoors difficult. Authorities have issued a Code Orange Air Quality Alert Tuesday for the Washington, D.C., metro area. A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups.

Sensitive groups include children, people suffering from asthma, heart disease or other lung diseases and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors.

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Here's an early look at the forecast through Labor Day:

Monday Night: Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

Tuesday: Mostly sunny, with a high near 94. Heat index values as high as 104. Calm wind becoming southwest around 6 mph in the afternoon.

Tuesday Night: Mostly clear, with a low around 75. South wind around 6 mph.

Wednesday: Mostly sunny, with a high near 94. Heat index values as high as 101. Southwest wind 3 to 7 mph.

Wednesday Night: Partly cloudy, with a low around 75. Southwest wind 3 to 7 mph.

Thursday: Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 60%.

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.

Friday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.

Friday Night: A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 50%.

Saturday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.

Saturday Night: A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.

Sunday Night: Partly cloudy, with a low around 70.

Labor Day: A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.

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