Woburn Weather Center  60.3°F

05/18/2026 11:25:00 PM

Monthly Reports:
Yearly Reports:
Heat Advisory + 1 More Alert
Heat Advisory

HEAT ADVISORY IN EFFECT FROM 11 AM TUESDAY TO 8 PM EDT WEDNESDAY

Heat Advisory issued May 18 at 12:57PM EDT until May 20 at 8:00PM EDT by NWS Boston/Norton MA

* WHAT...Heat index values up to 96 expected.

* WHERE...Much of Southern New England, except for the eastern slopes of the Berkshires, the Rhode Island and Massachusetts South Coast, Cape Cod and the Islands.

* WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday.

* IMPACTS...Hot temperatures, a moderate degree of humidity with little relief Tuesday night may cause heat illnesses.

* ADDITIONAL DETAILS...This is the first multi-day period of hot temperatures. Those not yet accustomed to hot temperatures with a moderate degree of humidity should take appropriate heat-related precautions.

* INSTRUCTIONS...Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives, neighbors and pets.

Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Expires: May 19 at 7:00 AM EDT
Air Quality Alert

AIR QUALITY ALERT IN EFFECT FROM 11 AM TO 11 PM EDT TUESDAY

Air Quality Alert issued May 18 at 11:21PM EDT by NWS Boston/Norton MA

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, from 11 AM to 11 PM EDT Tuesday.

An Air Quality Alert day means that Ground Level Ozone concentrations within the region may approach or exceed levels that are Unhealthy for Sensitive Groups.

Air is unhealthy for sensitive children and adults, such as those with asthma, lung or heart disease, and older adults. Sensitive children and adults should limit prolonged outdoor activity.

For additional information, please visit the Massachusetts Department of Environmental Protection website at: https://mass.gov/dep/massair/forecast

Expires: May 19 at 11:15 PM EDT
Current Conditions
Air Quality 58    MODERATE   
PM 2.5 13 µg/m³
Outside Temperature 60.3°F
Apparent Temperature 62.3°F
Humidex 65.9°F
Dew Point 56.4°F
Outside Humidity 87%
Barometer 30.084 inHg (0.027)
Rising Rapidly
Wind 0 mph N/A ( N/A)
Rain Rate 0.00 in/h
Rain Today 0.00 in
Rain Yesterday 0.04 in
Storm Rain 0.00 in
Last Rain 05/17/2026 02:25:00 AM
1 day, 21 hours, 0 minutes ago
UV Index 0.0
ET Today 0.16 in
Radiation 0 W/m²
Inside Temperature 67.1°F
 
Today
 
Week
 
Month
 
Year
Outside Temperature 73.9
54.5
86.2
54.1
86.2
35.1
86.2
-6.9
°F
Air Quality Index 61
18
72
18
127
0
173
0
AQI
PM 2.5 14
3
20
3
46
0
87
0
µg/m³
Heat Index 73.1 85.9 85.9 85.9 °F
Wind Chill 54.5 54.1 35.1 -6.9 °F
Dew Point 57.0
45.5
61.6
45.5
61.6
24.3
63.1
-16.3
°F
Outside Humidity 96
40
98
29
99
24
99
15
%
Barometer 30.248
30.050
30.248
29.837
30.248
29.669
30.701
29.263
inHg
Rain 0.00 0.04 1.31 7.15 in
Rain Rate 0.00 0.06 0.47 1.17 in/h
Wind Max 14
223
14
223
25
187
36
206
mph
°
Wind Average 1 1 1 1 mph
Wind RMS 2 2 1 2 mph
Vector Average
Average Direction
1
102
1
83
0
243
0
330
mph
°
UV Index 7.0
0.0
8.0
0.0
11.0
0.0
11.0
0.0
Evapotranspiration 0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
in
Radiation 839
0
954
0
1196
0
1196
0
W/m²
Inside Temperature 78.8
66.9
81.0
66.9
81.0
59.9
81.0
59.9
°F
Climatological Data
TODAY
Normal High Temp 68.5°F
Record High Temp 94.3°F in 2017
Normal Low Temp 47.4°F
Record Low Temp 31.0°F in 2023
Normal Avg Temp 58.3°F
YESTERDAY
Normal High Temp 71.8°F
Record High Temp 91.6°F in 2017
Normal Low Temp 48.9°F
Record Low Temp 36.4°F in 2023
Normal Avg Temp 60.5°F
Avg Temp 70.6°F
Departure From Normal 10.12F
SEASONAL TEMPERATURES
Last Temp Of 32°F 04/25/2026 06:55:00 AM
23 days, 16 hours, 30 minutes ago
Last Temp Of 90°F 08/17/2025 03:25:00 PM
274 days, 8 hours, 0 minutes ago
Climatological Period 2006 To 2025
Celestial
Rise 5:19 AM   Rise 6:21 AM
Set 8:03 PM   Set 10:56 PM
Daylight 14:43   Waxing crescent
8%
Sensor Status
Battery Status
Outside T/H OK
Rain Gauge OK
Anemometer OK
Lightning Detector OK
Basement Leak Detector OK
Attic T/H OK
Freezer T/H OK
Garage T/H OK
Dining Room T/H OK
Refrigerator T/H OK
Basement T/H OK
Master Bedroom T/H OK
Latitude 42° 27.48' N
Longitude 071° 11.73' W
Altitude 161 feet
Hardware ECOWITT
Temp WH32EP
Rain WH40H
Anemometer WS68
Lightning WH57
PurpleAir
PA-II-Flex1,2
Server Uptime 1 day, 6 hours, 32 minutes
WeeWX Uptime 0 days, 12 hours, 53 minutes
GW2000 Gateway Uptime 23 days, 11 hours, 26 minutes
GW2000 Gateway Memory 129 KB
WeeWX version 5.3.1
Skin Pauland 5.3.1
1 EPA Correction Applied
2 EPA Final AQI Update
Wx Networks Uploaded To
CWOP N1OTX
Mesowest AP564
PurpleAir Pauland.net
PWSWeather KMAWOBUR2
WOW Woburn Weather Center
Weather Underground KMAWOBUR2
History: Day Week Month Year
Barometer Outside Temperature dayaqi apparent temperature Outside Humidity Wind Speed windrose Rain UV Index Radiation Inside Temperature

This station is controlled by WeeWX, an experimental weather software system written in Python.