Siskiyou County, California, United States

Last updated: 6:00 PM CDT  ·  Refresh
25°C
Feels like 22°
Clear
▲ 27°  /  ▼ 6°
Wind
2 mph E
Humidity
16%
Dew Point
-1°
Pressure
27.34 inHg
Visibility
10 mi
UV Index
5.6
Cloud Cover
0%
Sunrise
7:21 AM
Sunset
6:28 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Siskiyou County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:21AM · Sunset: 6:28PM.

Alerts

No active alerts for this location.
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
3%
5 PM
27°
3%
6 PM
26°
3%
7 PM
23°
3%
8 PM
21°
3%
9 PM
19°
3%
10 PM
16°
3%
11 PM
14°
3%
12 AM
14°
3%
1 AM
13°
3%
2 AM
11°
3%
3 AM
11°
3%
4 AM
9°
3%
5 AM
9°
3%
6 AM
6°
3%
7 AM
6°
3%
8 AM
6°
3%
9 AM
8°
3%
10 AM
11°
3%
11 AM
16°
3%
12 PM
17°
3%
1 PM
19°
3%
2 PM
22°
3%
3 PM
24°
3%
7-Day Forecast
Today
27° 6°
Clear.
Fri
27° 6°
Clear.
Sat
22° 7°
Partly Cloudy.
Sun
23° 5°
Mostly Clear.
Mon
17° 3°
Mostly Cloudy.
Tue
16° 1°
Partly Cloudy.
Wed
19° 0°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 3% 2 mph E 16%
5 PM 27° Clear 3% 2 mph ENE 14%
6 PM 26° Clear 3% 2 mph NNW 18%
7 PM 23° Clear 3% 3 mph NW 23%
8 PM 21° Clear 3% 2 mph N 27%
9 PM 19° Clear 3% 2 mph N 28%
10 PM 16° Clear 3% 4 mph NNW 30%
11 PM 14° Clear 3% 4 mph NNW 31%
12 AM 14° Clear 3% 4 mph NNW 33%
1 AM 13° Clear 3% 5 mph NNW 34%
2 AM 11° Clear 3% 5 mph NNW 36%
3 AM 11° Clear 3% 4 mph NNW 37%
4 AM 9° Clear 3% 4 mph NNW 39%
5 AM 9° Clear 3% 4 mph NNW 40%
6 AM 6° Clear 3% 4 mph NNW 39%
7 AM 6° Clear 3% 4 mph NNW 39%
8 AM 6° Clear 3% 4 mph NNW 39%
9 AM 8° Clear 3% 4 mph NNW 33%
10 AM 11° Clear 3% 3 mph NNW 27%
11 AM 16° Clear 3% 3 mph NNW 22%
12 PM 17° Clear 3% 3 mph NNW 19%
1 PM 19° Clear 3% 3 mph NNW 17%
2 PM 22° Clear 3% 3 mph NW 14%
3 PM 24° Mostly Clear 3% 2 mph NNW 14%
15-Day Forecast
Today
10/15
Clear
3%
6°
27°
Fri
10/16
Clear
3%
6°
27°
Sat
10/17
Partly Cloudy
3%
7°
22°
Sun
10/18
Mostly Clear
3%
5°
23°
Mon
10/19
Mostly Cloudy
17%
3°
17°
Tue
10/20
Partly Cloudy
17%
1°
16°
Wed
10/21
Partly Cloudy
18%
0°
19°
Thu
10/22
Overcast
44%
1°
14°
Fri
10/23
Mostly Clear
35%
1°
15°
Sat
10/24
Clear
12%
0°
17°
Sun
10/25
Clear
12%
-1°
18°
Mon
10/26
Clear
25%
2°
19°
Tue
10/27
Drizzle
60%
3°
18°
Wed
10/28
Clear
60%
3°
17°
Thu
10/29
Drizzle
60%
2°
14°
31
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
23 AQI 4.2 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 31 Good 31 23
Sat 33 Good 33 30
Sun 32 Good 31 32
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Thu Oct 15, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE5 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index9.8
Kinematics
0–6 km Shear5 kt
0–1 km Shear14 kt
Eff. Shear—
0–1 km SRH78
0–3 km SRH125
Eff. SRH—
Storm Motion207° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-18.6
Thermo & Levels
PWAT0.21 in
0–3 km LR6.5 °C/km
700–500 LR6.6 °C/km
Total Totals29.6
LCL630 hPa
LFC926 hPa
EL926 hPa
Freezing Lvl12,644 ft