Excessive Heat Warning — San Bernardino and Riverside County Valleys-The Inland Empire, CA, San Diego County Inland Valleys, CA, Santa Ana Mountains and Foothills, CA, San Diego County Mountains, CA, Apple and Lucerne Valleys, CA, Coachella Valley, CA, San Diego County Deserts, CA, San Gorgonio Pass Near Banning, CA, Orange County Inland, CA, San Diego County Coastal Areas, CA, San Bernardino County Mountains, CA, Riverside County Mountains, CA, Orange County Coastal, CA 10:00 PM

Thornbury, Canada

Last updated: 12:16 AM CDT  ·  Refresh
19°C
Feels like 18°
Mostly Cloudy
▲ 21°  /  ▼ 14°
Wind
10 mph SSW
Humidity
86%
Dew Point
16°
Pressure
29.04 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
80%
Sunrise
6:38 AM
Sunset
8:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Thornbury is currently mostly cloudy at 19°C. Precipitation is likely — peak probability 76% around 1 AM. Sunrise: 6:38AM · Sunset: 8:07PM.

Alerts

Excessive Heat Warning
San Bernardino and Riverside County Valleys-The Inland Empire, CA, San Diego County Inland Valleys, CA, Santa Ana Mountains and Foothills, CA, San Diego County Mountains, CA, Apple and Lucerne Valleys, CA, Coachella Valley, CA, San Diego County Deserts, CA, San Gorgonio Pass Near Banning, CA, Orange County Inland, CA, San Diego County Coastal Areas, CA, San Bernardino County Mountains, CA, Riverside County Mountains, CA, Orange County Coastal, CA
Expires 10:00 PM
39 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
75%
2 AM
18°
52%
3 AM
18°
53%
4 AM
18°
17%
5 AM
18°
18%
6 AM
18°
18%
7 AM
18°
28%
8 AM
18°
28%
9 AM
18°
28%
10 AM
19°
32%
11 AM
20°
45%
12 PM
20°
40%
1 PM
21°
36%
2 PM
21°
33%
3 PM
21°
38%
4 PM
21°
45%
5 PM
21°
28%
6 PM
20°
25%
7 PM
19°
18%
8 PM
19°
18%
9 PM
19°
18%
10 PM
18°
14%
11 PM
17°
14%
12 AM
17°
12%
7-Day Forecast
Today
21° 14°
Partly Cloudy with a 75% chance of rain.
Fri
21° 14°
Mostly Clear.
Sat
24° 14°
Mostly Cloudy with a 66% chance of rain.
Sun
22° 18°
Overcast with a 81% chance of rain.
Mon
24° 18°
Rain, 64% chance.
Tue
28° 17°
Rain, 78% chance.
Wed
25° 17°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Cloudy 75% 10 mph SSW 86%
2 AM 18° Mostly Cloudy 52% 12 mph SSW 90%
3 AM 18° Partly Cloudy 53% 11 mph SSW 91%
4 AM 18° Partly Cloudy 17% 11 mph SW 92%
5 AM 18° Mostly Clear 18% 11 mph SW 93%
6 AM 18° Partly Cloudy 18% 10 mph SW 93%
7 AM 18° Partly Cloudy 28% 10 mph WSW 93%
8 AM 18° Mostly Cloudy 28% 11 mph WSW 92%
9 AM 18° Mostly Cloudy 28% 12 mph WSW 88%
10 AM 19° Mostly Cloudy 32% 13 mph WSW 86%
11 AM 20° Mostly Cloudy 45% 13 mph WSW 82%
12 PM 20° Mostly Cloudy 40% 13 mph W 81%
1 PM 21° Mostly Cloudy 36% 14 mph W 81%
2 PM 21° Mostly Cloudy 33% 14 mph W 79%
3 PM 21° Partly Cloudy 38% 14 mph W 79%
4 PM 21° Partly Cloudy 45% 14 mph W 78%
5 PM 21° Partly Cloudy 28% 15 mph W 80%
6 PM 20° Partly Cloudy 25% 14 mph WNW 82%
7 PM 19° Partly Cloudy 18% 14 mph WNW 84%
8 PM 19° Partly Cloudy 18% 13 mph WNW 86%
9 PM 19° Partly Cloudy 18% 13 mph NW 86%
10 PM 18° Partly Cloudy 14% 13 mph NW 85%
11 PM 17° Partly Cloudy 14% 13 mph NNW 84%
12 AM 17° Partly Cloudy 12% 12 mph NNW 83%
15-Day Forecast
Today
8/27
Partly Cloudy
75%
14°
21°
Fri
8/28
Mostly Clear
6%
14°
21°
Sat
8/29
Mostly Cloudy
66%
14°
24°
Sun
8/30
Overcast
81%
18°
22°
Mon
8/31
Rain
64%
18°
24°
Tue
9/1
Rain
78%
17°
28°
Wed
9/2
Rain
71%
17°
25°
Thu
9/3
Drizzle
53%
16°
22°
Fri
9/4
Drizzle
44%
14°
23°
Sat
9/5
Rain
68%
16°
23°
Sun
9/6
Drizzle
60%
16°
23°
Mon
9/7
Drizzle
60%
14°
22°
Tue
9/8
Drizzle
60%
14°
24°
Wed
9/9
Drizzle
60%
15°
23°
Thu
9/10
Drizzle
60%
16°
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
33 AQI 6.1 µg/m³
O3
Ground-level ozone
Dominant
39 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 39 Good 39 33
Fri 30 Good 30 26
Sat 18 Good 18 12
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 Aug 27, 04:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE30 J/kg
MLCAPE29 J/kg
MUCAPE64 J/kg
SBCIN-92 J/kg
MLCIN-63 J/kg
Lifted Index0.8
Kinematics
0–6 km Shear26 kt
0–1 km Shear27 kt
Eff. Shear—
0–1 km SRH165
0–3 km SRH165
Eff. SRH—
Storm Motion248° @ 24 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index34.5
Thermo & Levels
PWAT1.56 in
0–3 km LR5.6 °C/km
700–500 LR5.4 °C/km
Total Totals46.4
LCL947 hPa
LFC731 hPa
EL566 hPa
Freezing Lvl11,168 ft