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Hazardous Weather Conditions

Current conditions at

Meriden, Meriden Markham Municipal Airport (KMMK)

Lat: 41.51°NLon: 72.83°WElev: 102ft.

Fair

26°C

78°F

Humidity 87%
Wind Speed Calm
Barometer 1017.3 mb (30.05 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 15 Jul 10:53 pm EDT
Extended Forecast for

Portland CT

Heat Advisory July 16, 11:00am until July 17, 10:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Patchy fog. Otherwise, partly cloudy, with a low around 22. Calm wind.

    Low: 22 °C

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 33. Heat index values as high as 41. Light south wind increasing to 6 to 11 km/h in the afternoon.

    High: 33 °C

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Increasing clouds, with a low around 23. South wind 5 to 10 km/h becoming calm after midnight.

    Low: 23 °C

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 31. Heat index values as high as 39. Southwest wind 8 to 16 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 31 °C

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Southwest wind 5 to 10 km/h. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 31.

    High: 31 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 17.

    Low: 17 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 29.

    High: 29 °C

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °C

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 22. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 33. Heat index values as high as 41. Light south wind increasing to 6 to 11 km/h in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Increasing clouds, with a low around 23. South wind 5 to 10 km/h becoming calm after midnight.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 31. Heat index values as high as 39. Southwest wind 8 to 16 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.
Thursday Night
A chance of thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Southwest wind 5 to 10 km/h. Chance of precipitation is 30%.
Friday
Sunny, with a high near 31.
Friday Night
Mostly clear, with a low around 17.
Saturday
Sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
A 50 percent chance of showers after 8am. Partly sunny, with a high near 28.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland CT
 41.57°N 72.62°W (Elev. 10 m)
Last Update:
3:16 pm EDT Jul 15, 2025
Forecast Valid:
11pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
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