Great Western Lake, Okanogan County, Washington, United States

Last updated: 5:56 PM CDT · Refresh

11°C

Feels like 8°

Overcast

▲ 16° / ▼ 6°

Wind

6 mph S

Humidity

82%

Dew Point

8°

Pressure

27.27 inHg

Visibility

10 mi

UV Index

1.9

Cloud Cover

97%

Sunrise

6:29 AM

Sunset

7:12 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Great Western Lake is currently overcast at 11°C. Precipitation is likely — peak probability 79% around 7 PM. Sunrise: 6:29AM · Sunset: 7:12PM.

34 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

11°

30%

4 PM

10°

36%

5 PM

12°

41%

6 PM

11°

64%

7 PM

11°

78%

8 PM

10°

75%

9 PM

9°

53%

10 PM

9°

32%

11 PM

8°

12 AM

8°

1 AM

8°

2 AM

8°

3 AM

8°

4 AM

8°

5 AM

6°

6 AM

6°

7 AM

6°

8 AM

7°

9 AM

8°

10 AM

11°

11 AM

11°

12 PM

12°

1 PM

14°

2 PM

14°

7-Day Forecast

Today

16° 6°

Rain, 64% chance.

Mon

17° 6°

Partly Cloudy.

Tue

17° 9°

Overcast with a 20% chance of rain.

Wed

23° 8°

Clear.

Thu

26° 8°

Clear.

Fri

26° 10°

Clear.

Sat

26° 11°

Mostly Cloudy.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 11° Overcast 30% 6 mph S 82%

4 PM 10° Overcast 36% 5 mph S 80%

5 PM 12° Overcast 41% 4 mph SSW 84%

6 PM 11° Rain 64% 4 mph SW 88%

7 PM 11° Rain 78% 3 mph SSW 92%

8 PM 10° Overcast 75% 3 mph SSW 94%

9 PM 9° Overcast 53% 3 mph SSW 94%

10 PM 9° Overcast 32% 3 mph SW 95%

11 PM 8° Overcast 7% 2 mph SW 96%

12 AM 8° Mostly Cloudy 7% 2 mph SW 96%

1 AM 8° Mostly Cloudy 7% 2 mph SW 97%

2 AM 8° Mostly Cloudy 7% 2 mph SW 96%

3 AM 8° Mostly Cloudy 4% 2 mph WSW 95%

4 AM 8° Mostly Cloudy 3% 2 mph N 94%

5 AM 6° Mostly Cloudy 3% 2 mph N 91%

6 AM 6° Mostly Cloudy 3% 2 mph N 89%

7 AM 6° Partly Cloudy 3% 2 mph NNE 89%

8 AM 7° Partly Cloudy 3% 2 mph SW 84%

9 AM 8° Partly Cloudy 5% 2 mph SW 79%

10 AM 11° Partly Cloudy 5% 3 mph SSW 76%

11 AM 11° Partly Cloudy 5% 3 mph SSW 71%

12 PM 12° Partly Cloudy 3% 4 mph SSW 66%

1 PM 14° Partly Cloudy 3% 4 mph SSW 60%

2 PM 14° Partly Cloudy 3% 5 mph SSW 59%

15-Day Forecast

Today

9/13

Rain

64%

6°

16°

Mon

9/14

Partly Cloudy

6°

17°

Tue

9/15

Overcast

20%

9°

17°

Wed

9/16

Clear

8°

23°

Thu

9/17

Clear

8°

26°

Fri

9/18

Clear

10°

26°

Sat

9/19

Mostly Cloudy

11°

26°

Sun

9/20

Clear

9°

25°

Mon

9/21

Mostly Clear

10°

24°

Tue

9/22

Overcast

15%

10°

24°

Wed

9/23

Overcast

33%

9°

22°

Thu

9/24

Clear

25%

8°

21°

Fri

9/25

Clear

25%

7°

20°

Sat

9/26

Clear

60%

8°

21°

Sun

9/27

Clear

25%

8°

21°

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

PM_2.5

Fine particulate matter

18 AQI 3.2 µg/m³

O₃

Ground-level ozone

Dominant

34 AQI 37 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Mon 34 Good 34 18

Tue 30 Good 30 26

Wed 28 Good 28 13

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. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Sun Sep 13, 21:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE58 J/kg

MLCAPE31 J/kg

MUCAPE58 J/kg

SBCIN0 J/kg

MLCIN0 J/kg

Lifted Index1.0

Kinematics

0–6 km Shear50 kt

0–1 km Shear7 kt

Eff. Shear—

0–1 km SRH-31

0–3 km SRH10

Eff. SRH—

Storm Motion116° @ 19 kt

0–1 km EHI-0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index29.4

Thermo & Levels

PWAT0.65 in

0–3 km LR6.2 °C/km

700–500 LR6.4 °C/km

Total Totals51.1

LCL878 hPa

LFC923 hPa

EL670 hPa

Freezing Lvl4,806 ft

Great Western Lake, Okanogan County, Washington, United States

Alerts