National Weather Service United States Department of Commerce

The flash flooding threat will begin moving east out of the Plains into the Upper Midwest and Great Lakes on Thursday

Flash flooding will continue to be possible on Thursday but will begin moving out of the central and northern Plains. The area of concern will be the Upper Midwest edging into the the eastern Great Lakes region. 1 to 2 inches of rainfall will be possible into Friday.
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Hazardous Weather Conditions

Current Conditions

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Portland ME

7 Day Forecast

For More Weather Information:

Gray/Portland, ME Local Forecast Office

Tonight

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 64 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 76 °F

Thursday
Night

Mostly Clear

Mostly
Clear

Low: 56 °F

Friday

Sunny

Sunny

High: 70 °F

Friday
Night

Mostly Clear

Mostly
Clear

Low: 57 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 74 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 63 °F

Sunday

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

High: 80 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

Low: 65 °F

Detailed Forecast

  • Tonight A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Northwest wind around 5 mph. Chance of precipitation is 20%.
  • Thursday Mostly sunny, with a high near 76. Northwest wind 5 to 10 mph.
  • Thursday Night Mostly clear, with a low around 56. Northwest wind around 10 mph.
  • Friday Sunny, with a high near 70. North wind 5 to 10 mph becoming east in the afternoon.
  • Friday Night Mostly clear, with a low around 57. Southwest wind around 5 mph.
  • Saturday Mostly sunny, with a high near 74.
  • Saturday Night Mostly cloudy, with a low around 63.
  • Sunday A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
  • Sunday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
  • Labor Day A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
  • Monday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
  • Tuesday A 30 percent chance of showers. Partly sunny, with a high near 75.
  • Tuesday Night Mostly cloudy, with a low around 62.
  • Wednesday Partly sunny, with a high near 76.