Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Tuesday December 16 14:10:00 2025

Monthly Summary: 
Yearly Summary: 

Today Week Month Year All
High Temperature: 38.2
13:24
49.4
Wednesday
49.4
12/10/2025
105.1
06/24/2025
105.1
06/24/2025
°F
Low Temperature: 23.0
04:02
14.0
Tuesday
12.9
12/05/2025
9.0
01/22/2025
-9.1
02/04/2023
°F
High Humidity: 68
04:06
88
Sunday
92
12/02/2025
96
03/31/2025
100
05/17/2011
%
Low Humidity: 42
14:00
25
Tuesday
25
12/08/2025
15
03/28/2025
4
06/13/2023
%
High Dewpoint: 19.0
11:57
41.8
Wednesday
41.8
12/10/2025
78.3
07/17/2025
90.5
07/01/2009
°F
Low Dewpoint: 13.7
04:02
-2.2
Tuesday
-5.6
12/05/2025
-9.1
01/22/2025
-28.2
02/04/2023
°F
High Barometer: 30.154
07:47
30.206
Tuesday
30.304
12/05/2025
30.611
02/02/2025
31.100
01/04/2015
inHg
Low Barometer: 30.054
00:12
29.231
Thursday
29.231
12/11/2025
28.889
02/16/2025
28.625
02/07/2020
inHg
High Heat Index: 38.2
13:24
47.4
Wednesday
47.4
12/10/2025
116.1
07/25/2025
119.6
06/20/2024
°F
Low Wind Chill: 14.0
04:00
-2.1
Monday
-2.1
12/15/2025
-4.0
01/22/2025
-31.6
02/04/2023
°F
High Wind Speed: 11
13:37
26
Thursday
30
12/04/2025
36
03/06/2025
88
04/13/2020
mph
Ave Wind Speed: 2 3 3 2 3 mph
High Rain Rate: 0.00
00:00
0.06
Wednesday
0.09
12/02/2025
655.35
01/04/2025
655.35
04/23/2021
in/hr
Rain Total: 0.00
0.09
0.50 37.91 711.56 in
High UV Index: 2.0
10:58
2.8
Thursday
2.8
12/11/2025
9.8
07/07/2025
14.0
07/03/2013
High Solar Radiation: 385
11:15
408
Thursday
476
12/07/2025
1243
06/01/2025
2483
07/25/2015
W/m²
High Particulate:
Matter (PM2.5):
7.555
09:19
36.855
Sunday
36.855
12/14/2025
631.010
07/02/2025
5428.570
04/30/2023
µg/m³