Upper San Pedro River Valley including Sierra Vista/Benson, AZ

Last updated: 7:19 AM CDT  ·  Refresh
25°C
Feels like 29°
Partly Cloudy
▲ 35°  /  ▼ 24°
Wind
2 mph SSE
Humidity
90%
Dew Point
23°
Pressure
30.08 inHg
Visibility
10 mi
UV Index
2.8
Cloud Cover
37%
Sunrise
6:29 AM
Sunset
7:50 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Upper San Pedro River Valley including Sierra Vista/Benson is currently partly cloudy at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2081 J/kg) — isolated convective development possible. Sunrise: 6:29AM · Sunset: 7:50PM.

Alerts

No active alerts for this location.
36 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
21%
8 AM
26°
21%
9 AM
28°
14%
10 AM
30°
17%
11 AM
31°
17%
12 PM
33°
17%
1 PM
34°
17%
2 PM
34°
20%
3 PM
34°
20%
4 PM
34°
20%
5 PM
35°
21%
6 PM
34°
21%
7 PM
33°
14%
8 PM
31°
14%
9 PM
30°
14%
10 PM
29°
12%
11 PM
28°
12%
12 AM
28°
7%
1 AM
27°
7%
2 AM
27°
7%
3 AM
27°
7%
4 AM
27°
7%
5 AM
26°
7%
6 AM
26°
7%
7-Day Forecast
Today
35° 24°
Partly Cloudy with a 21% chance of rain.
Wed
36° 26°
Partly Cloudy.
Thu
37° 24°
Partly Cloudy.
Fri
38° 23°
Partly Cloudy.
Sat
39° 23°
Mostly Clear with a 33% chance of rain.
Sun
38° 24°
Partly Cloudy with a 33% chance of rain.
Mon
39° 24°
Partly Cloudy with a 34% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 25° Partly Cloudy 21% 2 mph SSE 90%
8 AM 26° Mostly Clear 21% 2 mph S 82%
9 AM 28° Mostly Clear 14% 2 mph S 75%
10 AM 30° Mostly Clear 17% 2 mph SSW 68%
11 AM 31° Mostly Clear 17% 3 mph SSW 63%
12 PM 33° Mostly Clear 17% 4 mph SSW 56%
1 PM 34° Mostly Clear 17% 4 mph S 51%
2 PM 34° Partly Cloudy 20% 5 mph S 49%
3 PM 34° Partly Cloudy 20% 5 mph S 48%
4 PM 34° Partly Cloudy 20% 6 mph S 48%
5 PM 35° Partly Cloudy 21% 6 mph S 52%
6 PM 34° Partly Cloudy 21% 7 mph S 57%
7 PM 33° Mostly Cloudy 14% 7 mph S 63%
8 PM 31° Partly Cloudy 14% 6 mph SSW 69%
9 PM 30° Partly Cloudy 14% 6 mph SSW 73%
10 PM 29° Mostly Clear 12% 6 mph SSW 77%
11 PM 28° Mostly Clear 12% 6 mph SSW 79%
12 AM 28° Clear 7% 5 mph SSW 80%
1 AM 27° Clear 7% 5 mph SSW 83%
2 AM 27° Clear 7% 4 mph SSW 86%
3 AM 27° Clear 7% 4 mph SSW 88%
4 AM 27° Mostly Clear 7% 4 mph SSW 90%
5 AM 26° Mostly Clear 7% 3 mph SSW 90%
6 AM 26° Mostly Clear 7% 3 mph SSW 91%
15-Day Forecast
Today
8/11
Partly Cloudy
21%
24°
35°
Wed
8/12
Partly Cloudy
17%
26°
36°
Thu
8/13
Partly Cloudy
9%
24°
37°
Fri
8/14
Partly Cloudy
3%
23°
38°
Sat
8/15
Mostly Clear
33%
23°
39°
Sun
8/16
Partly Cloudy
33%
24°
38°
Mon
8/17
Partly Cloudy
34%
24°
39°
Tue
8/18
Rain
66%
24°
39°
Wed
8/19
Rain
66%
24°
39°
Thu
8/20
Thunderstorm
51%
24°
37°
Fri
8/21
Drizzle
66%
23°
38°
Sat
8/22
Drizzle
60%
23°
38°
Sun
8/23
Drizzle
60%
23°
37°
Mon
8/24
Drizzle
60%
23°
38°
Tue
8/25
Rain
90%
23°
37°
36
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
31 AQI 5.5 µg/m³
O3
Ground-level ozone
Dominant
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 36 Good 36 31
Thu 21 Good 21 19
Fri 41 Good 22 41
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 Tue Aug 11, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE932 J/kg
MLCAPE171 J/kg
MUCAPE932 J/kg
SBCIN-192 J/kg
MLCIN0 J/kg
Lifted Index-2.8
Kinematics
0–6 km Shear7 kt
0–1 km Shear9 kt
Eff. Shear6 kt
0–1 km SRH6
0–3 km SRH1
Eff. SRH1
Storm Motion255° @ 18 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.0
Thermo & Levels
PWAT1.75 in
0–3 km LR4.7 °C/km
700–500 LR5.6 °C/km
Total Totals41.6
LCL998 hPa
LFC749 hPa
EL197 hPa
Freezing Lvl15,794 ft