Freeze Warning — South Central Siskiyou County, CA, Northeast Siskiyou and Northwest Modoc Counties, CA, Modoc County, CA, Klamath Basin, OR, Northern and Eastern Klamath County and Western Lake County, OR, Central and Eastern Lake County, OR 11:00 AM

Klamath Falls, Oregon

Last updated: 8:29 AM CDT  ·  Refresh
3°C
Feels like 1°
Mostly Clear
▲ 21°  /  ▼ 3°
Wind
2 mph NE
Humidity
81%
Dew Point
2°
Pressure
25.76 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
13%
Sunrise
6:37 AM
Sunset
7:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Klamath Falls is currently mostly clear at 3°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:37AM · Sunset: 7:30PM.

Alerts

Freeze Warning
South Central Siskiyou County, CA, Northeast Siskiyou and Northwest Modoc Counties, CA, Modoc County, CA, Klamath Basin, OR, Northern and Eastern Klamath County and Western Lake County, OR, Central and Eastern Lake County, OR
Expires 11:00 AM
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
3°
3%
7 AM
2°
3%
8 AM
4°
3%
9 AM
7°
3%
10 AM
10°
3%
11 AM
12°
3%
12 PM
14°
3%
1 PM
18°
3%
2 PM
19°
3%
3 PM
19°
3%
4 PM
20°
3%
5 PM
21°
3%
6 PM
19°
3%
7 PM
18°
3%
8 PM
16°
3%
9 PM
14°
3%
10 PM
13°
3%
11 PM
12°
3%
12 AM
12°
3%
1 AM
9°
3%
2 AM
9°
3%
3 AM
8°
3%
4 AM
8°
3%
5 AM
8°
3%
7-Day Forecast
Today
21° 3°
Clear.
Tue
26° 7°
Mostly Clear.
Wed
29° 10°
Clear.
Thu
25° 10°
Mostly Cloudy.
Fri
24° 7°
Clear.
Sat
18° 4°
Clear.
Sun
20° 1°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 3° Mostly Clear 3% 2 mph NE 81%
7 AM 2° Clear 3% 2 mph NE 77%
8 AM 4° Clear 3% 2 mph ESE 73%
9 AM 7° Clear 3% 2 mph SE 64%
10 AM 10° Clear 3% 2 mph SSE 55%
11 AM 12° Clear 3% 2 mph SSE 46%
12 PM 14° Clear 3% 2 mph SSE 40%
1 PM 18° Clear 3% 2 mph S 33%
2 PM 19° Clear 3% 1 mph SW 29%
3 PM 19° Clear 3% 2 mph WNW 26%
4 PM 20° Clear 3% 2 mph NW 25%
5 PM 21° Clear 3% 3 mph NNW 26%
6 PM 19° Mostly Clear 3% 4 mph N 30%
7 PM 18° Mostly Clear 3% 4 mph N 35%
8 PM 16° Mostly Clear 3% 5 mph N 40%
9 PM 14° Mostly Clear 3% 5 mph N 44%
10 PM 13° Clear 3% 6 mph N 48%
11 PM 12° Clear 3% 6 mph N 52%
12 AM 12° Clear 3% 5 mph N 55%
1 AM 9° Clear 3% 5 mph N 58%
2 AM 9° Clear 3% 5 mph N 60%
3 AM 8° Clear 3% 5 mph N 61%
4 AM 8° Clear 3% 5 mph N 62%
5 AM 8° Clear 3% 5 mph N 61%
15-Day Forecast
Today
9/7
Clear
3%
3°
21°
Tue
9/8
Mostly Clear
3%
7°
26°
Wed
9/9
Clear
3%
10°
29°
Thu
9/10
Mostly Cloudy
3%
10°
25°
Fri
9/11
Clear
3%
7°
24°
Sat
9/12
Clear
8%
4°
18°
Sun
9/13
Clear
3%
1°
20°
Mon
9/14
Clear
8%
4°
23°
Tue
9/15
Clear
3%
7°
25°
Wed
9/16
Clear
3%
7°
24°
Thu
9/17
Clear
25%
7°
25°
Fri
9/18
Drizzle
60%
9°
24°
Sat
9/19
Clear
60%
9°
24°
Sun
9/20
Clear
25%
8°
24°
Mon
9/21
Clear
25%
9°
23°
39
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
28 AQI 5.0 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 39 Good 39 28
Wed 38 Good 38 22
Thu 44 Good 44 21
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 Mon Sep 7, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE29 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index15.1
Kinematics
0–6 km Shear32 kt
0–1 km Shear5 kt
Eff. Shear—
0–1 km SRH6
0–3 km SRH40
Eff. SRH—
Storm Motion352° @ 24 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index6.9
Thermo & Levels
PWAT0.38 in
0–3 km LR2.8 °C/km
700–500 LR5.2 °C/km
Total Totals32.8
LCL847 hPa
LFC—
EL—
Freezing Lvl6,621 ft