Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Sunday May 31 11:25:00 2026

Monthly Summary: 
Yearly Summary: 

Today Week Month Year All
High Temperature: 72.9
11:09
91.7
Wednesday
101.1
05/19/2026
101.1
05/19/2026
105.1
06/24/2025
°F
Low Temperature: 42.9
05:11
42.9
Sunday
42.9
05/31/2026
4.4
02/08/2026
-9.1
02/04/2023
°F
High Humidity: 89
05:41
94
Monday
94
05/25/2026
94
03/07/2026
100
05/17/2011
%
Low Humidity: 38
11:06
26
Wednesday
23
05/04/2026
15
04/09/2026
4
06/13/2023
%
High Dewpoint: 47.4
09:42
64.1
Monday
73.6
05/19/2026
73.6
05/19/2026
90.5
07/01/2009
°F
Low Dewpoint: 39.6
05:11
39.6
Sunday
25.5
05/03/2026
-14.8
01/24/2026
-28.2
02/04/2023
°F
High Barometer: 30.003
00:02
30.467
Sunday
30.471
05/23/2026
30.648
03/02/2026
31.100
01/04/2015
inHg
Low Barometer: 29.874
11:19
29.525
Saturday
29.525
05/30/2026
29.219
03/17/2026
28.625
02/07/2020
inHg
High Heat Index: 71.8
11:10
91.8
Wednesday
106.5
05/19/2026
106.5
05/19/2026
119.6
06/20/2024
°F
Low Wind Chill: 42.9
05:11
36.7
Saturday
36.7
05/30/2026
-15.9
02/08/2026
-31.6
02/04/2023
°F
High Wind Speed: 10
09:29
29
Saturday
29
05/05/2026
46
03/17/2026
88
04/13/2020
mph
Ave Wind Speed: 1 2 2 3 3 mph
High Rain Rate: 0.00
00:00
0.23
Sunday
1.37
05/14/2026
655.35
01/27/2026
655.35
04/23/2021
in/hr
Rain Total: 0.10
0.89
2.61 10.66 723.84 in
High UV Index: 6.3
11:24
7.3
Friday
8.5
05/21/2026
8.5
05/21/2026
14.0
07/03/2013
High Solar Radiation: 1002
11:24
1086
Thursday
1134
05/12/2026
1134
05/12/2026
2483
07/25/2015
W/m²
High Particulate:
Matter (PM2.5):
5.610
01:27
12.730
Saturday
376.135
05/03/2026
376.135
05/03/2026
5428.570
04/30/2023
µg/m³