Citizen station DW3092DW3092
In a volunteer observer's own ground/2.2 mi away/330 ft/73 ft above here
temp, humidity, wind, precip, pressure
Parks/Massachusetts/Callahan State Park
Callahan State Park, Massachusetts
State Park in Middlesex County, Massachusetts47°
69°/41°
Mostly cloudy·
Feels like 47°·Light air 3 mph S
Coming up. Rain is likely this morning, from about 9 AM, the chance peaking at 75% around 10 AM.
Now. Callahan State Park is 47° and mostly cloudy at 2 AM. The dew point is 41°, so the air feels dry and comfortable. Light air from the south at 3 mph.
Today and tonight. It warms to about 67° by 5 PM. Tonight falls to about 42° by 8 AM, with some cloud.
The week. The warmest day ahead is Tuesday, near 62°, and the coolest tomorrow, near 50°. Rain is likely tomorrow (70%). The first freeze could come Sunday, a low of 30°.
The sky tonight. The sun sets at 6:03 PM. The Moon is a waxing crescent, 33% lit, and sets at 9:49 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The day is 11 hours 4 minutes long, 3 minutes shorter than yesterday.
0UV Low
27Air quality
86%Humidity
67%Cloud
Now
2:00 AM
47feels47
now, partly cloudy
Today
Oct 16
6941
98%
12mph
Sat
Oct 17
5040
70%
14mph
Sun
Oct 18
5530
clear day
Mon
Oct 19
5934
mostly clear day
Tue
Oct 20
6237
10%
Wed
Oct 21
5940
mostly clear day
Thu
Oct 22
5637
mostly clear day
47°
69°41°
50°40°
55°30°
59°34°
62°37°
59°40°
56°37°
As of 2:00 AM in Callahan State Park, Massachusetts.
Air quality
The air at Callahan State Park
Index 27, good, led by fine particles. Read at 2 AM from its reporting area, West Middlesex (MA), 11 miles off.
27Good
- Fine particles (PM2.5)27Good16 mi
- Ozone1Good1 ppb17.7 mi
- Coarse particles (PM10)-16 mi
- Nitrogen dioxide18Good19 ppb16 mi
- Sulfur dioxide0Good0.2 ppb16 mi
- Carbon monoxide-0.3 ppm16 mi
The days ahead
Good each day through Sat Oct 17, led by fine particles. Yesterday measured 14, good.
GoodModerate
- 14YesterdayOct 15
- 35TodayOct 16
- 30SatOct 17
Smoke, the next 43 hours
No smoke near the ground through Sat 8 PM.
Precipitation
What has fallen at Callahan State Park
None in the last 24 hours; 0.26 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.26in
3 days agoLast 24 hours 0%
Visibility
How far you can see at Callahan State Park, the next 43 hours
Fog: visibility falls to 0.9 miles Fri 10 AM, under a mile for 1 hour.
F
Now, today, and the week
Weather instrument stations by state
Park
- Designation
- State Park
- Area
- 1.47 sq mi
- Height at its point
- 257 ft
- County
- Middlesex County
- State
- Massachusetts
- Latitude
- 42.3380° N
- Longitude
- 71.4992° W
What is measuring near here
The 6 instruments nearest Callahan State Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.2 miles away.
measured now4 instruments
Beside a road/3.2 mi away/265 ft/8 ft above here
temp, pavement temp, wind, visibility, precip
Stony Brook Reservoir At Dam Near Waltham01104480
At a dam/12.0 mi away/42 ft/215 ft below here
temp, wind, gust, humidity, pressure
At an airfield/14.1 mi away/135 ft/122 ft below here
temp, wind, gust, visibility, precip, pressure
measured daily2 instruments
Sudbury 2.4 WMA-MD-128
In a volunteer observer's own ground/3.4 mi away/153 ft/104 ft below here
precip, snowfall, snow depth
MilfordMILM3
At a cooperative observer's station/12.2 mi away/273 ft/16 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
0in
Snow on the ground
Measured at Milford (MILM3), 12.2 miles from here, read 15 Oct, 07:00. measured daily
Elsewhere in Massachusetts
17 places, each with its own forecast and its own instruments.
Near Callahan State Park
The nearest places, each with its own forecast and the instruments nearest it.
- Marlboroughcity, 2 mi
- Cordavillecommunity, 5 mi
- Framinghamcity, 5 mi
- Hudsoncommunity, 5 mi
- Maynardcommunity, 7 mi
- Cochituatecommunity, 7 mi
- Westboroughcommunity, 8 mi
- Northboroughcommunity, 8 mi
- Hopkintoncommunity, 8 mi
- West Concordcommunity, 9 mi
- Wellesleycommunity, 11 mi
- Clintoncommunity, 11 mi