Heat Advisory HEAT ADVISORY - Middlesex County

Observed at
Lowell, Massachusetts
06-12-2026 12:50 PM

Temperature

89.7°F

Hour Change

3.0°F

Wet Bulb Temp

79.1°F

Humidity

62%

Hour Change

-4%

Dewpoint

74.9°F

Hour Change

1.0°F

Wind

1 mph from 0° (N)

Wind Gust

3 mph

Barometer

29.61 inHg

3 Hour Trend

-0.03 inHg

Today's Rain

0.00 in

Current Rain Rate

0.00 in/hr

Last Hour of Rain

0.00 in

Apparent Temp

99.4°F

Wind Chill

89.7°F

Heat Index

100.1°F

Est. Cumulus Base

3539 feet

Today's Highs / Lows

Temperature
Climate Normals

High: 77.9℉ ; Low: 54.0℉

High Temperature

Low Temperature

89.7°F at 12:49 PM

72.3°F at 05:12 AM

High Humidity

Low Humidity

92% at 05:25 AM

61% at 12:38 PM

High Dewpoint

Low Dewpoint

75.5°F at 11:44 AM

69.5°F at 05:12 AM

High Barometer

Low Barometer

29.67 inHg at 12:14 AM

29.61 inHg at 12:40 PM

High Wind Gust

11 mph from 355° at 11:45 AM

High Rain Rate

0.00 in/hr at 12:00 AM

Low Wind Chill

72.3°F at 05:12 AM

High Heat Index

100.2°F at 12:47 PM

Yesterday's Statistics

High Temperature

Low Temperature

93.9°F at 04:11 PM

69.7°F at 06:08 AM

High Humidity

Low Humidity

91% at 06:01 AM

48% at 04:12 PM

High Dewpoint

Low Dewpoint

73.5°F at 11:35 AM

66.7°F at 05:08 AM

High Barometer

Low Barometer

29.73 inHg at 12:00 AM

29.63 inHg at 06:09 PM

High Wind Gust

10 mph from 290° at 05:47 PM

Rain

0.00 in

High Rain Rate

0.00 in/hr at 12:00 AM

Low Wind Chill

69.7°F at 06:08 AM

High Heat Index

103.1°F at 02:43 PM

Website Powered By WeeWX Software:  WeeWX.COM
Weewx uptime: 4 days, 4 hours, 58 minutes
Server uptime: 4 days, 5 hours, 39 minutes
weewx v5.3.1


*Regional Observations*




USA Extremes: Thursday, June 11, 2026
(Lower 48)

High Temperature
110°F at Needles, CA

Low Temperature
20°F at Stanley Ranger Station, ID

High Precipatation
2.26in at Dubuque Regional Ap, IA

Data courtesy of NWS-CPC



Lowell Webcams

Courtesy McDonough Funeral Home


New England Webcams


Atmospheric CO2
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday

Sunday: Mostly Sunny
Mostly Sunny
Hi 92 °F Lo 65 °F Hi 90 °F Lo 63 °F Hi 93 °F



CURRENT SURFACE MAPS

GeoColor - True Color daytime, multispectral IR at night

Click Above Images to Enlarge



24 Hour Plots - Mouseover for Weekly Plots



Lowell Almanac Information
Station Elevation: 178 ft  Latitude: 42° 37' 33" N  Longitude: 71° 20' 12" W

Today's Almanac
Sun
Start astro twilight: 02:52:10 AM
Start civil twilight: 04:32:13 AM
Sunrise: 05:06:56 AM
Transit: 12:45:15 PM
Sunset: 08:23:44 PM
End civil twilight: 08:58:30 PM
End astro twilight: 10:38:49 PM
Azimuth: 183.3°
Altitude: 70.5°
Right ascension: 81.0°
Declination: 23.2°
Solstice: 06/21/2026 04:24:30 AM
Equinox: 09/22/2026 08:05:13 PM
Moon
Rise: 02:35:29 AM
Transit: 10:08:23 AM
Set: 05:56:07 PM
Azimuth: 249.4°
Altitude: 50.9°
Right ascension: 42.9°
Declination: 21.2°
New moon: 06/14/2026 10:54:10 PM
Full moon: 06/29/2026 07:56:41 PM
Phase: Waning crescent
(9% full)


Today's Total Daylight:  15 hours, 16 minutes, 47 seconds
0 minutes, 36 seconds More than Yesterday

Lowell's Daily Climatology



Detailed Historical Data