Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Friday August 29 17:25:00 2025

Monthly Summary: 
Yearly Summary: 

Today Week Month Year All
High Temperature: 76.4
11:10
90.9
Saturday
100.0
08/12/2025
105.1
06/24/2025
105.1
06/24/2025
°F
Low Temperature: 63.8
08:10
55.7
Thursday
55.7
08/28/2025
9.0
01/22/2025
-9.1
02/04/2023
°F
High Humidity: 88
04:38
91
Monday
94
08/01/2025
96
03/31/2025
100
05/17/2011
%
Low Humidity: 55
13:02
27
Thursday
23
08/12/2025
15
03/28/2025
4
06/13/2023
%
High Dewpoint: 64.8
10:39
67.8
Monday
75.9
08/13/2025
78.3
07/17/2025
90.5
07/01/2009
°F
Low Dewpoint: 56.7
06:34
43.2
Thursday
43.2
08/28/2025
-9.1
01/22/2025
-28.2
02/04/2023
°F
High Barometer: 30.000
00:10
30.094
Thursday
30.394
08/06/2025
30.611
02/02/2025
31.100
01/04/2015
inHg
Low Barometer: 29.860
15:53
29.672
Monday
29.672
08/25/2025
28.889
02/16/2025
28.625
02/07/2020
inHg
High Heat Index: 76.7
11:10
90.4
Saturday
105.1
08/13/2025
116.1
07/25/2025
119.6
06/20/2024
°F
Low Wind Chill: 63.8
08:10
55.7
Thursday
55.7
08/28/2025
-4.0
01/22/2025
-31.6
02/04/2023
°F
High Wind Speed: 20
12:04
28
Friday
28
08/22/2025
36
03/06/2025
88
04/13/2020
mph
Ave Wind Speed: 2 1 1 2 3 mph
High Rain Rate: 0.31
07:13
0.31
Friday
9.14
08/14/2025
655.35
01/04/2025
655.35
04/23/2021
in/hr
Rain Total: 0.14
0.14
1.53 25.41 699.06 in
High UV Index: 5.9
12:48
7.2
Sunday
8.2
08/19/2025
9.8
07/07/2025
14.0
07/03/2013
High Solar Radiation: 886
12:49
979
Wednesday
1011
08/01/2025
1243
06/01/2025
2483
07/25/2015
W/m²
High Particulate:
Matter (PM2.5):
6.330
05:23
381.295
Saturday
381.295
08/23/2025
631.010
07/02/2025
5428.570
04/30/2023
µg/m³