National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Meriden, Meriden Markham Municipal Airport (KMMK)

Lat: 41.51°NLon: 72.83°WElev: 102ft.

Mostly Cloudy

63°F

17°C

Humidity 40%
Wind Speed NW 7 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 21 May 2:53 am EDT
Extended Forecast for

Portland CT

  • Overnight

    Overnight: A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 55. North wind around 5 mph.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers, mainly before 11am. Cloudy, with a high near 67. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 71. Northeast wind around 6 mph becoming east in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 48. South wind around 6 mph becoming calm in the evening.

    Low: 48 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers likely after 2pm. Cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Cloudy then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers after 5am. Mostly cloudy, with a low around 55. North wind around 5 mph.
Thursday
A 40 percent chance of showers, mainly before 11am. Cloudy, with a high near 67. North wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Calm wind.
Friday
Mostly sunny, with a high near 71. Northeast wind around 6 mph becoming east in the afternoon.
Friday Night
Increasing clouds, with a low around 48. South wind around 6 mph becoming calm in the evening.
Saturday
Showers likely after 2pm. Cloudy, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Showers. Low around 48. Chance of precipitation is 90%.
Sunday
Showers, mainly before 2pm. High near 62. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 52.
Memorial Day
A 40 percent chance of showers after 8am. Mostly cloudy, with a high near 73.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland CT
 41.57°N 72.62°W (Elev. 10 ft)
Last Update:
2:19 am EDT May 21, 2026
Forecast Valid:
3am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation