Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Tuesday September 2 18:05:00 2025

Monthly Summary: 
Yearly Summary: 

Today Week Month Year All
High Temperature: 81.0
12:31
81.2
Tuesday
81.0
09/02/2025
105.1
06/24/2025
105.1
06/24/2025
°F
Low Temperature: 60.0
06:38
55.7
Thursday
57.6
09/01/2025
9.0
01/22/2025
-9.1
02/04/2023
°F
High Humidity: 89
07:00
89
Tuesday
89
09/02/2025
96
03/31/2025
100
05/17/2011
%
Low Humidity: 39
11:40
27
Thursday
39
09/02/2025
15
03/28/2025
4
06/13/2023
%
High Dewpoint: 59.1
01:49
64.8
Friday
60.7
09/01/2025
78.3
07/17/2025
90.5
07/01/2009
°F
Low Dewpoint: 50.9
15:18
43.2
Thursday
50.9
09/02/2025
-9.1
01/22/2025
-28.2
02/04/2023
°F
High Barometer: 30.181
00:02
30.239
Monday
30.239
09/01/2025
30.611
02/02/2025
31.100
01/04/2015
inHg
Low Barometer: 30.024
17:43
29.773
Tuesday
30.024
09/02/2025
28.889
02/16/2025
28.625
02/07/2020
inHg
High Heat Index: 80.7
12:31
80.7
Tuesday
80.7
09/02/2025
116.1
07/25/2025
119.6
06/20/2024
°F
Low Wind Chill: 60.0
06:38
55.7
Thursday
57.6
09/01/2025
-4.0
01/22/2025
-31.6
02/04/2023
°F
High Wind Speed: 8
11:48
20
Friday
8
09/02/2025
36
03/06/2025
88
04/13/2020
mph
Ave Wind Speed: 0 1 0 2 3 mph
High Rain Rate: 0.00
00:00
0.31
Friday
0.00
09/01/2025
655.35
01/04/2025
655.35
04/23/2021
in/hr
Rain Total: 0.00
0.14
0.00 25.41 699.06 in
High UV Index: 5.8
12:16
6.7
Tuesday
5.8
09/02/2025
9.8
07/07/2025
14.0
07/03/2013
High Solar Radiation: 807
12:32
979
Wednesday
807
09/02/2025
1243
06/01/2025
2483
07/25/2015
W/m²
High Particulate:
Matter (PM2.5):
16.665
07:29
122.435
Sunday
16.665
09/02/2025
631.010
07/02/2025
5428.570
04/30/2023
µg/m³