National Weather Service United States Department of Commerce

Oppressive heat and humidity building into the central and southeast U.S.

A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
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Hazardous Weather Conditions

Current Conditions

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Thurmont MD

7 Day Forecast

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 18 °C

Thursday

Heavy Rain Chance for Measurable Precipitation 60%

Heavy
Rain

High: 31 °C

Thursday
Night

Heavy Rain Chance for Measurable Precipitation 60%

Heavy
Rain

Low: 19 °C

Friday

Scattered Thunderstorms Chance for Measurable Precipitation 50%

Scattered
Thunderstorms

High: 29 °C

Friday
Night

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

Low: 18 °C

Saturday

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

High: 24 °C

Saturday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 16 °C

Sunday

Mostly Cloudy

Mostly
Cloudy

High: 23 °C

Sunday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 14 °C

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 18. South wind around 18 km/h.
  • Thursday Showers and thunderstorms likely, mainly after 5pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 31. South wind 5 to 11 km/h becoming northwest in the morning. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.
  • Thursday Night Showers and thunderstorms likely, mainly before 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.
  • Friday Scattered showers and thunderstorms. Mostly cloudy, with a high near 29. Calm wind. Chance of precipitation is 50%.
  • Friday Night A chance of showers and thunderstorms. Cloudy, with a low around 18. East wind 5 to 8 km/h. Chance of precipitation is 50%.
  • Saturday A chance of showers. Mostly cloudy, with a high near 24. Chance of precipitation is 40%.
  • Saturday Night A chance of showers. Mostly cloudy, with a low around 16. Chance of precipitation is 30%.
  • Sunday Mostly cloudy, with a high near 23.
  • Sunday Night A chance of showers. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
  • Monday A chance of showers. Partly sunny, with a high near 24. Chance of precipitation is 30%.
  • Monday Night Partly cloudy, with a low around 16.
  • Tuesday Mostly sunny, with a high near 26.
  • Tuesday Night Partly cloudy, with a low around 17.
  • Wednesday Mostly sunny, with a high near 28.