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

Hazardous Weather Conditions

Current conditions at

Hartford, Hartford-Brainard Airport (KHFD)

Lat: 41.74°NLon: 72.65°WElev: 16ft.

Overcast

73°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 30.03 in (1016.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 15 Jul 12:53 am EDT
Extended Forecast for

Unionville CT

Heat Advisory July 15, 11:00am until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 96. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 70. Light south wind.

    Low: 70 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 100. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Southwest wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 89 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers before 9pm. Partly cloudy, with a low around 74. Southwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87. Northwest wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 65. North wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Heat index values as high as 96. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 70. Light south wind.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 89. Heat index values as high as 100. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Southwest wind 5 to 8 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers before 9pm. Partly cloudy, with a low around 74. Southwest wind around 6 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87. Northwest wind 5 to 7 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 65. North wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 84. Light north wind.
Saturday Night
Mostly cloudy, with a low around 66. Light southwest wind.
Sunday
A chance of showers. Partly sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 83. West wind around 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Unionville CT
 41.73°N 72.91°W (Elev. 397 ft)
Last Update:
1:16 am EDT Jul 15, 2025
Forecast Valid:
1am EDT Jul 15, 2025-6pm EDT Jul 21, 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