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
Bale Grist Mill State Historic Park, California
State Historic Park in Napa County, California* WHAT...Hot conditions with maximum temperatures in the mid-90s to near 105. Mild minimum temperatures and weak onshore flow will limit overnight relief. * WHERE...The East Bay and San Francisco Bay Shoreline, North Bay Interior Mountains and Valleys, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 10 PM PDT Thursday. * IMPACTS...This level of heat affects anyone without effective cooling and/or adequate hydration. Impacts likely in some health systems, heat-sensitive industries and infrastructure.
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
71°
100°/65°
Clear·
Feels like 71°·Light air 1 mph NW
Alert. A Heat Advisory is in force for Bale Grist Mill State Historic Park until 10 PM Thursday. Read the alert in full, and see what it means in the Field Book.
Now. Bale Grist Mill State Historic Park is 71° and clear at 11 PM. The dew point is 55°, so the air feels dry and comfortable. Light air from the northwest at 1 mph.
Today and tonight. Tonight falls to about 65° 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 Wednesday, near 95°, and the coolest Sunday, near 75°. The days ahead look dry. Wednesday is hot, 95°: heat is a danger to anyone outdoors for long.
The sky now. The Moon is a waning crescent, 22% lit, and rises at 2:50 AM after midnight. The next new Moon is Saturday, Oct 10. Look for Saturn, bright in the south-southeast. A planet shines with a steady light where the stars around it twinkle. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 39 minutes long, 3 minutes shorter than yesterday.
0UV Low
22Air quality
81%Humidity
0%Cloud
Now
11:00 PM
71feels71
now, clear
Today
Oct 5
10065
mostly clear day
Wed
Oct 7
9561
UV 7
Thu
Oct 8
9559
UV 7
Fri
Oct 9
8960
UV 7
Sat
Oct 10
7955
UV 6
Sun
Oct 11
7551
UV 6
Mon
Oct 12
7751
UV 6
71°
100°65°
95°61°
95°59°
89°60°
79°55°
75°51°
77°51°
As of 11:00 PM in Bale Grist Mill State Historic Park, California.
Air quality
The air at Bale Grist Mill State Historic Park
Index 22, good, led by fine particles. Read at 11 PM from its reporting area, Santa Rosa (CA), 12 miles off.
22Good
- Fine particles (PM2.5)22Good-
- Ozone17Good-
The days ahead
Highest 84, moderate, today, led by ozone. Yesterday measured 40, good.
GoodModerate
- 40YesterdayOct 4
- 84TodayOct 5
- 77TueOct 6
- ModerateWedOct 7
- ModerateThuOct 8
- ModerateFriOct 9
- GoodSatOct 10
Smoke, the next 43 hours
Little smoke near the ground through Wed 5 PM: the index from smoke stays at 22 or under.
Precipitation
What has fallen at Bale Grist Mill State Historic Park
None in the last 3 days, to Mon 10 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at Bale Grist Mill State Historic Park, the next 43 hours
Visibility stays 10 miles or more through Wed 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Park
- Designation
- State Historic Park
- Area
- 32,300 sq ft
- Height at its point
- 354 ft
- County
- Napa County
- State
- California
- Latitude
- 38.5411° N
- Longitude
- 122.5087° W
What is measuring near here
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
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
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in California
33 places, each with its own forecast and its own instruments.
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Near Bale Grist Mill State Historic Park
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