Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Fitchburg, Fitchburg Municipal Airport (KFIT)

Lat: 42.55°NLon: 71.76°WElev: 348ft.

Mostly Cloudy

52°F

11°C

Humidity 83%
Wind Speed Calm
Barometer 30.38 in (1029.0 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 11 Oct 11:52 am EDT
Extended Forecast for

Groton MA

  • This Afternoon

    This Afternoon: A chance of showers, mainly after 5pm.  Cloudy, with a high near 62. South wind around 6 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers, mainly before 5am.  Patchy fog. Low around 46. Light and variable wind.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Showers and
    Patchy Fog

  • Columbus Day

    Columbus Day: Patchy fog before 10am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 70. North wind 3 to 5 mph.

    High: 70 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 47. Calm wind.

    Low: 47 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of showers, mainly after 2pm.  Mostly cloudy, with a high near 64. Light and variable wind becoming southeast around 6 mph in the morning.  Chance of precipitation is 30%.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 2am, then a chance of showers after 2am.  Mostly cloudy, with a low around 54. Southwest wind around 6 mph.  Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. West wind 7 to 9 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Northwest wind around 6 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61. Northwest wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 61 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers, mainly after 5pm. Cloudy, with a high near 62. South wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly before 5am. Patchy fog. Low around 46. Light and variable wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Columbus Day
Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 70. North wind 3 to 5 mph.
Monday Night
Increasing clouds, with a low around 47. Calm wind.
Tuesday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 64. Light and variable wind becoming southeast around 6 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 54. Southwest wind around 6 mph. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 69. West wind 7 to 9 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 42. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 61. Northwest wind 6 to 9 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 37. Light northwest wind.
Friday
A chance of showers. Mostly cloudy, with a high near 61. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 42. Southwest wind around 8 mph. Chance of precipitation is 50%.
Saturday
A chance of showers. Mostly cloudy, with a high near 57. West wind 10 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Groton MA
 42.6°N 71.58°W (Elev. 299 ft)
8:57 am EDT Oct 11, 2026
12pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database