Frost Advisory — Coastal Del Norte, CA, Interior Del Norte, CA, Northern Coastal Humboldt, CA, Southwestern Humboldt, CA, Northeastern Interior Humboldt, CA, Southeastern Interior Humboldt, CA, Coastal Mendocino, CA, Southwestern Interior Mendocino, CA 11:00 AM

False Klamath, California

Last updated: 5:23 PM CDT  ·  Refresh
12°C
Feels like 9°
Clear
▲ 13°  /  ▼ 6°
Wind
9 mph NW
Humidity
74%
Dew Point
8°
Pressure
29.62 inHg
Visibility
10 mi
UV Index
5.8
Cloud Cover
4%
Sunrise
7:42 AM
Sunset
6:15 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: False Klamath is currently clear at 12°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:42AM · Sunset: 6:15PM.

Alerts

Frost Advisory
Coastal Del Norte, CA, Interior Del Norte, CA, Northern Coastal Humboldt, CA, Southwestern Humboldt, CA, Northeastern Interior Humboldt, CA, Southeastern Interior Humboldt, CA, Coastal Mendocino, CA, Southwestern Interior Mendocino, CA
Expires 11:00 AM
28 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
12°
3%
4 PM
13°
16%
5 PM
12°
16%
6 PM
11°
16%
7 PM
10°
16%
8 PM
10°
16%
9 PM
9°
8%
10 PM
8°
8%
11 PM
8°
3%
12 AM
8°
3%
1 AM
8°
3%
2 AM
7°
3%
3 AM
7°
3%
4 AM
7°
3%
5 AM
7°
3%
6 AM
7°
3%
7 AM
6°
3%
8 AM
7°
3%
9 AM
8°
3%
10 AM
9°
3%
11 AM
10°
3%
12 PM
10°
3%
1 PM
11°
3%
2 PM
11°
3%
7-Day Forecast
Today
13° 6°
Clear.
Thu
12° 6°
Partly Cloudy.
Fri
11° 6°
Mostly Clear with a 36% chance of rain.
Sat
11° 6°
Mostly Clear with a 43% chance of rain.
Sun
14° 3°
Clear.
Mon
16° 7°
Drizzle, 60% chance.
Tue
17° 9°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 12° Clear 3% 9 mph NW 74%
4 PM 13° Clear 16% 9 mph NNW 76%
5 PM 12° Clear 16% 8 mph NNW 79%
6 PM 11° Clear 16% 7 mph N 83%
7 PM 10° Clear 16% 6 mph N 87%
8 PM 10° Mostly Clear 16% 6 mph NNE 89%
9 PM 9° Mostly Clear 8% 5 mph NNE 89%
10 PM 8° Mostly Clear 8% 4 mph NNE 89%
11 PM 8° Mostly Clear 3% 4 mph NNE 89%
12 AM 8° Mostly Clear 3% 4 mph NNE 88%
1 AM 8° Mostly Clear 3% 4 mph NNE 88%
2 AM 7° Mostly Clear 3% 4 mph NE 86%
3 AM 7° Partly Cloudy 3% 5 mph NE 85%
4 AM 7° Haze 3% 5 mph NE 84%
5 AM 7° Haze 3% 5 mph ENE 83%
6 AM 7° Fog 3% 4 mph ENE 82%
7 AM 6° Fog 3% 4 mph NE 82%
8 AM 7° Haze 3% 4 mph NE 82%
9 AM 8° Partly Cloudy 3% 3 mph NE 79%
10 AM 9° Partly Cloudy 3% 3 mph N 77%
11 AM 10° Partly Cloudy 3% 4 mph N 75%
12 PM 10° Partly Cloudy 3% 5 mph NNW 74%
1 PM 11° Partly Cloudy 3% 6 mph NNW 73%
2 PM 11° Partly Cloudy 3% 7 mph NNW 73%
15-Day Forecast
Today
10/28
Clear
16%
6°
13°
Thu
10/29
Partly Cloudy
3%
6°
12°
Fri
10/30
Mostly Clear
36%
6°
11°
Sat
10/31
Mostly Clear
43%
6°
11°
Sun
11/1
Clear
3%
3°
14°
Mon
11/2
Drizzle
60%
7°
16°
Tue
11/3
Clear
35%
9°
17°
Wed
11/4
Clear
25%
9°
15°
Thu
11/5
Drizzle
60%
8°
14°
Fri
11/6
Drizzle
60%
8°
14°
Sat
11/7
Drizzle
60%
6°
15°
Sun
11/8
Drizzle
60%
10°
16°
Mon
11/9
Drizzle
90%
10°
16°
Tue
11/10
Drizzle
60%
9°
14°
Wed
11/11
Rain
90%
9°
14°
28
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
26 AQI 4.7 µg/m³
O3
Ground-level ozone
Dominant
28 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 28 Good 28 26
Fri 29 Good 27 29
Sat 30 Good 30 25
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Oct 28, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE3 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index7.5
Kinematics
0–6 km Shear31 kt
0–1 km Shear3 kt
Eff. Shear—
0–1 km SRH-17
0–3 km SRH47
Eff. SRH—
Storm Motion326° @ 29 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-5.5
Thermo & Levels
PWAT0.52 in
0–3 km LR4.6 °C/km
700–500 LR6.7 °C/km
Total Totals39.7
LCL943 hPa
LFC—
EL—
Freezing Lvl8,953 ft