Blue Hill Meteorological Observatory
42° 12' 44"N, 71° 06' 53"W, Elevation 635 feet
Milton, Massachusetts USA

 

Monday, August 10, 2026
10:50 AM (Eastern Standard Time)
Updated every 10 minutes
 
82.2°F
 27.9°C
Humidity61%
Dew Point67.4°F (19.7°C)
WindS 9 G 13 mph
Heat Index85°F
Barometer30.006" (1016.2 mb)
Solar807 W/m2
Rainfall0.00" (0.00"/hr)
webcam
Facing WNW. Updated every 15 minutes.
Source: Camnet

 

Today's Highs and Lows
Temperature 82.2°F @ 10:44 AM
66.7°F @ 5:15 AM
Dew Point 68.4°F 10:44 AM
60.1°F 4:00 AM
Humidity 81% 5:50 AM
60% 10:46 AM
Wind Gust 17 mph WNW @ 1:23 AM
Wind Speed 13 mph NW @ 4:01 AM
Barometer 30.024" 7:24 AM
29.986" 3:33 AM
Precipitation Max 0.00"1 12:00 AM
Last 24 hours 0.00"
Storm total 0.00"
Evapotranspiration 0.062"
Wind Chill Gust Min 66°F 5:14 AM
Wind Chill Avg Min 66°F 5:15 AM
Heat Index Max 85°F 10:42 AM
Sunshine Max 837 W/m2 10:26 AM
1. Instantaneous rainfall rate.


Yesterday August 9, 2026
  Maximum, Minimum Mean/Total
Temperature 88.1°F @ 1:40 PM
69.8°F @ 5:21 AM
78.9°
Dew Point 73.8°F 9:11 AM
62.1°F 7:45 PM
67.7°
Humidity 92% 5:24 AM
54% 4:07 PM
71.8%
Wind Gust 27 mph W @ 4:12 PM
11.6 276°
Wind Speed 21 mph W @ 4:13 PM
 
Barometer 29.996" 11:46 PM
29.909" 3:47 PM
29.940
Wind Chill Gust Min 70°F 5:21 AM
Wind Chill Avg Min 70°F 5:21 AM
Heat Index Max 96°F 1:39 PM
Sunshine Max 1023 W/m2 11:52 AM 261.9
Degree Days Heating (Base 65°F): 0
Cooling (Base 65°F): 14
Precipitation   0.00"
Evapotranspiration   0.245"
Precipitation Types none
Snowfall 0.0"
Snowcover 0"


Forecast
Partly cloudy with little temperature change.


Number of Days
For August For 2026
Rain: 2
Snow: 0
Heavy Fog: 0
Thunder: 0
High ≥ 90°F: 2
Low ≤ 32°F: 0
High ≤ 32°F: 0
Low ≤ 0°F: 0
Cloudy: 0
Partly Cloudy: 0
Clear: 0
Rain: 70
Snow: 0
Heavy Fog: 0
Thunder: 0
High ≥ 90°F: 10
Low ≤ 32°F: 83
High ≤ 32°F: 30
Low ≤ 0°F: 2
Cloudy: 0
Partly Cloudy: 0
Clear: 0
Date of last rainfall: August 3, 2026 (7 days)


Observed Conditions
Precipitation types none
Snowfall today 0.0 inches
Snow on the ground 0 inches
Snowfall this season 0.0 inches
 
Degree Days
  Today Month Season
Heating - Base 65°F 0 0 2
Cooling - Base 65°F 10 120 639
 
Wind Run
Today 91.0 miles
This month 2357.3 miles
This year 59737.1 miles


Sun, Moon
Twilight begins 4:26 AM
Sunrise 4:48 AM
Sunset 6:51 PM
Twilight ends 7:13 PM
Moonrise 1:46 AM
Moonset 5:49 PM
 
Sunshine Minutes (intensity ≥ 120 W/m2)
Today 278
This Month 5,963
This Year 111,199
Yesterday 698
One Year Ago 688


Monthly and Yearly Statistics
  Monthly
Maximum, Minimum, Mean/Total
Yearly
Maximum, Minimum, Mean/Total
Temperature °F 92.2° on Aug 7 2:20 PM
62.0° on Aug 4 3:43 AM
Mean 76.8°
98.2° on Jul 2 2:13 PM
-0.9° on Jan 31 5:34 AM
Mean 52.3°
Dew Point °F 78.1° on Aug 6 1:26 PM
58.3° on Aug 4 2:49 PM
Mean 68.4°
78.7° on Jun 12 1:47 PM
-14.2° on Jan 24 7:40 AM
Mean 41.9°
Humidity 98% on Aug 3 1:25 PM
41% on Aug 4 2:48 PM
Mean 77.5%
98% on Mar 7 3:12 AM
18% on Apr 9 1:08 PM
Mean 71.5%
Wind Gust (mph) S 47 on Aug 3 1:38 PM
NW 0 on Aug 1 7:28 AM
Mean 236° 10.5
S 90 on Mar 17 12:22 AM
NNW 0 on Jan 4 9:36 AM
Mean 245° 11.2
Wind Speed S 30 on Aug 3 7:46 AM
NW 0 on Aug 1 8:37 AM
S 57 on Mar 17 12:12 AM
N 0 on Jan 4 9:06 AM
Barometer 30.180" on Aug 5 7:53 AM
29.730" on Aug 3 3:36 PM
Mean 30.009"
30.708" on Mar 2 10:38 AM
29.304" on Mar 17 2:16 AM
Mean 30.004"
Precipitation Total 0.75" Total 102.82"
Evapotranspiration Total 1.832" Total 29.669"
Wind Chill Gust °F Min 60° on Aug 4 4:47 AM Min -27° on Feb 8 6:42 AM
Wind Chill Avg °F Min 60° on Aug 4 4:46 AM Min -25° on Feb 8 6:43 AM
Heat Index °F Max 103° on Aug 6 1:46 PM Max 109° on Jul 2 1:10 PM
Sunshine (W/m2) Max 1192 on Aug 2 1:15 PM
Mean 233.4
Max 1306 on Jun 7 10:43 AM
Mean 179.1
Extremes are the first of multiple occurrences.


All-Time Records
  Maximum, Minimum
Temperature °F 99.1° on Jul 6, 2010 1:59 PM
-13.4° on Feb 4, 2023 5:47 AM
Dew Point °F 81.5° on Jul 20, 2019 1:48 PM
-79.1° on Nov 26, 2009 3:18 AM
Humidity 100% on Apr 24, 2004 7:18 AM
0% on Apr 5, 2007 8:24 AM
Wind Gust (mph) SSE 95 on Dec 19, 2023 11:31 AM
ESE 0 on Apr 21, 2004 1:52 AM
Wind Speed S 57 on Apr 13, 2020 3:38 PM
SSW 0 on Apr 21, 2004 2:06 AM
Barometer 30.932" on Dec 14, 2024 10:03 AM
28.675" on Feb 7, 2020 2:58 PM
Precipitation Max rate 96.00"/hr on Jan 12, 2005 5:44 PM
Evapotranspiration Max day 2.823" on Dec 31, 2009 12:00 PM
Wind Chill Gust °F Min -138° on Feb 3, 2023 3:33 AM
Wind Chill Avg °F Min -134° on Feb 3, 2023 3:36 AM
Heat Index °F Max 113° on Jun 20, 2024 12:23 PM
Sunshine (W/m2) Max 1498 on Jul 13, 2024 11:20 AM
Records begin 04/20/2004.
Extremes are the first of multiple occurrences.


Battery Status
Transmitters All OK
Console 4.70V

 

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