Cambridge Computer Laboratory Rooftop Weather at 03:52 AM on 09 May 26:

Temperature:  4.8 C
Pressure:     1000 mBar
Humidity:     86 %
Dewpoint:     2.7 C
Wind:         0 knots 
Sunshine:     0.0 hours (today)
Rainfall:     0.0 mm since midnight

Summary:      very humid, cold, calm, 4.8 C