In a volunteer observer's own ground/1.2 mi away/414 ft/206 ft above here
temp, humidity, wind, precip, pressure
Weather/California/San Luis Obispo
San Luis Obispo, California
City in San Luis Obispo County, California* WHAT...Temperatures up to 95 expected. * WHERE...Coastal areas of southwest California * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. In the event of a nearby wildfire, smoke may increase heat and physical stress. If smoke impacts your area; 1) Have a cooling plan in place as smoke could limit your ability to cool your home through open windows and 2) If you have air conditioning, set on air recirculation within the home to avoid smoke exposure. Local officials may have additional guidance.
64°
89°/54°
Clear·
Feels like 64°·Light breeze 7 mph NNE
Alert. A Heat Advisory is in force for San Luis Obispo until 8 PM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. San Luis Obispo is 64° and clear at 10 PM. The dew point is 44°, so the air feels dry and comfortable. Light breeze from the north-northeast at 7 mph.
Today and tonight. Tonight falls to about 58° by 4 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 93°, and the coolest Tuesday, near 67°. Rain is possible Tuesday (45%) and Wednesday (46%). The windiest day is tomorrow, with wind to 28 mph.
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 20 minutes long, 2 minutes shorter than yesterday.
0UV Low
43Air quality
53%Humidity
0%Cloud
Now
10:00 PM
64feels64
now, clear
Today
Oct 15
8954
18mph
UV 7
Fri
Oct 16
9358
28mph
UV 7
Sat
Oct 17
9165
16mph
UV 7
Sun
Oct 18
8258
UV 7
Mon
Oct 19
7253
19mph
UV 6
Tue
Oct 20
6750
45%
17mph
Wed
Oct 21
6749
46%
14mph
64°
89°54°
93°58°
91°65°
82°58°
72°53°
67°50°
67°49°
As of 10:00 PM in San Luis Obispo, California.
Air quality
The air at San Luis Obispo
Index 43, good, led by ozone. Read at 10 PM from its reporting area, Morro Bay (CA), 11 miles off.
43Good
- Fine particles (PM2.5)-15.5 mi
- Ozone43Good34 ppb15.5 mi
- Coarse particles (PM10)-15.5 mi
- Nitrogen dioxide7Good7.7 ppb15.5 mi
The days ahead
Good each day through Tue Oct 20, led by ozone. Yesterday measured 41, good.
GoodModerate
- 41YesterdayOct 14
- GoodTodayOct 15
- GoodFriOct 16
- GoodSatOct 17
- GoodSunOct 18
- GoodMonOct 19
- GoodTueOct 20
Smoke, the next 44 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at San Luis Obispo
None in the last 3 days, to Thu 9 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 San Luis Obispo, the next 44 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
On the radar over San Luis Obispo, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
Weather instrument stations by state
What is measuring near here
The 5 instruments nearest San Luis Obispo, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.
measured now3 instruments
Rank3,805of 4,465
At an airfield/2.7 mi away/182 ft/26 ft below here
temp, wind, gust, visibility, precip, pressure
At a river or reservoir gauge/7.0 mi away/1,161 ft/953 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
San Luis Obispo PolySBPC1
At a cooperative observer's station/2.2 mi away/361 ft/153 ft above here
snowfall, snow depth, precip, high, low
San Luis Obispo 2.2 NNWCA-SL-18
In a volunteer observer's own ground/2.2 mi away/324 ft/116 ft above here
precip, snowfall, snow depth
Station report
The weather at San Luis Obispo, drawn
The nearest airport reporting now, 2.7 mi from San Luis Obispo, California. From its report of Oct 15, 2026, 9:56 PM local time: 3 of its 6 sheets.
The sky
No cloud below 12,000 ft; visibility 10 mi or more.
The air
61.0 F with a dew point of 44.0 F, 53 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,900 ft up.
The wind
From the east southeast (110 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 28 mph.
The full report of San Luis Obispo, in 6 sheets, each beside the Field Book plates that explain it
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.
Big Bear Mountainski areaBishopcityBridgeporttownChina Peakski areaDodge Ridgeski areaDonner PassfeatureFresnocityHeavenlysurveyed ski areaHomewoodski areaJune Mountainski areaKirkwoodsurveyed ski areaLos AngelescityMammoth LakestownMammoth Mountainsurveyed ski areaMount ShastafeatureMount Shasta CitycityMount Shasta Ski Parkski areaMount WhitneyfeatureMountain Highski areaNorthstarsurveyed ski areaPalisades Tahoesurveyed ski areaReddingcitySacramentocitySan DiegocitySan FranciscocitySierra NevadafeatureSierra-at-Tahoeski areaSnow Valleyski areaSouth Lake TahoecitySugar Bowlski areaSusanvillecityTruckeetownYosemitefeature
Near San Luis Obispo
The nearest places, each with its own forecast and the instruments nearest it.
- California Polytechnic State Universitycommunity, 2 mi
- Los Ranchoscommunity, 4 mi
- Ednacommunity, 5 mi
- Avila Beachcommunity, 7 mi
- Santa Margaritacommunity, 8 mi
- Pismo Beachcity, 9 mi
- Los Ososcommunity, 10 mi
- Garden Farmscommunity, 10 mi
- Grover Beachcity, 11 mi
- Arroyo Grandecity, 11 mi
- Oceanocommunity, 12 mi
- Morro Baycity, 13 mi