St Helena 4WSWHNAC1
At a river or reservoir gauge/3.6 mi away/1,608 ft/1,254 ft above here
temp, wind, gust, humidity, pressure
Parks/California/Bale Grist Mill State Historic Park
Now. Bale Grist Mill State Historic Park is 69° and clear at 9 PM. The dew point is 40°, so the air feels dry and comfortable. Light air from the north at 2 mph.
Today and tonight. Tonight falls to about 58° by 7 AM, under a mostly clear sky. No rain is expected for the rest of the day.
The week. The warmest day ahead is tomorrow, near 91°, and the coolest Monday, near 67°. The days ahead look dry.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the 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 sky is forecast to stay clear: a good night to look up. The day is 11 hours 14 minutes long, 2 minutes shorter than yesterday.
As of 9:00 PM in Bale Grist Mill State Historic Park, California.
Air quality
Index 45, good, led by fine particles. Read at 9 PM from its reporting area, Santa Rosa (CA), 12 miles off.
Good each day through Tue Oct 20, led by ozone. Yesterday measured 39, good.
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.
Precipitation
None in the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
The 6 instruments nearest Bale Grist Mill State Historic Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.
measured now4 instruments
St Helena 4WSWHNAC1
At a river or reservoir gauge/3.6 mi away/1,608 ft/1,254 ft above here
temp, wind, gust, humidity, pressure
Citizen station FW7177FW7177
In a volunteer observer's own ground/13.3 mi away/162 ft/192 ft below here
temp, humidity, wind, precip, pressure
Santa RosaSTS
At an airfield/16.5 mi away/103 ft/251 ft below here
temp, wind, gust, visibility, precip, pressure
Bodega 6 WSW93245
At a climate reference station/34.0 mi away/63 ft/291 ft below here
temp, humidity, wind, solar, precip
measured daily2 instruments
Angwin Pacific Union CollegeANGC1
On a college campus/4.3 mi away/1,795 ft/1,441 ft above here
snowfall, snow depth, precip, high, low
St. Helena 1.1 SCA-NP-7
In a volunteer observer's own ground/4.4 mi away/248 ft/106 ft below here
precip, snowfall, snow depth
-
Snow on the ground
33 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.