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Cheyenne, Wyoming

Last updated: 5:00 PM CDT  ·  Refresh
61°F
Feels like 51°
Mostly Clear
▲ 61°  /  ▼ 38°
Wind
9 mph W
Humidity
28%
Dew Point
26°
Pressure
23.97 inHg
Visibility
10 mi
UV Index
4.8
Cloud Cover
20%
Sunrise
7:24 AM
Sunset
5:59 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Cheyenne is currently mostly clear at 61°F. Dry conditions are expected through the next 24 hours. Sunrise: 7:24AM · Sunset: 5:59PM.

37 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
61°
3%
5 PM
59°
23%
6 PM
55°
23%
7 PM
52°
23%
8 PM
50°
23%
9 PM
48°
23%
10 PM
46°
16%
11 PM
44°
16%
12 AM
43°
3%
1 AM
43°
3%
2 AM
42°
3%
3 AM
41°
3%
4 AM
40°
3%
5 AM
39°
3%
6 AM
38°
3%
7 AM
38°
3%
8 AM
39°
3%
9 AM
40°
3%
10 AM
44°
3%
11 AM
51°
3%
12 PM
53°
3%
1 PM
56°
3%
2 PM
56°
3%
3 PM
62°
3%
7-Day Forecast
Today
61° 38°
Mostly Clear with a 23% chance of rain.
Thu
62° 38°
Partly Cloudy.
Fri
66° 41°
Partly Cloudy.
Sat
66° 39°
Mostly Clear with a 59% chance of rain.
Sun
60° 40°
Clear with a 60% chance of rain.
Mon
48° 34°
Drizzle, 68% chance.
Tue
53° 35°
Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 61° Mostly Clear 3% 9 mph W 28%
5 PM 59° Mostly Cloudy 23% 9 mph SW 28%
6 PM 55° Partly Cloudy 23% 8 mph SSE 34%
7 PM 52° Mostly Cloudy 23% 6 mph SSE 44%
8 PM 50° Mostly Cloudy 23% 6 mph S 51%
9 PM 48° Mostly Cloudy 23% 6 mph S 57%
10 PM 46° Mostly Cloudy 16% 6 mph S 61%
11 PM 44° Mostly Cloudy 16% 7 mph S 65%
12 AM 43° Mostly Cloudy 3% 7 mph S 69%
1 AM 43° Partly Cloudy 3% 7 mph S 72%
2 AM 42° Mostly Clear 3% 5 mph SSW 75%
3 AM 41° Clear 3% 5 mph SSW 78%
4 AM 40° Mostly Clear 3% 5 mph SSW 78%
5 AM 39° Mostly Clear 3% 5 mph SW 79%
6 AM 38° Partly Cloudy 3% 5 mph SW 78%
7 AM 38° Partly Cloudy 3% 6 mph SW 72%
8 AM 39° Partly Cloudy 3% 6 mph SW 68%
9 AM 40° Partly Cloudy 3% 6 mph SW 62%
10 AM 44° Partly Cloudy 3% 7 mph SW 50%
11 AM 51° Partly Cloudy 3% 7 mph SSW 38%
12 PM 53° Mostly Clear 3% 8 mph SSW 32%
1 PM 56° Partly Cloudy 3% 8 mph SSW 32%
2 PM 56° Partly Cloudy 3% 8 mph SSW 32%
3 PM 62° Partly Cloudy 3% 9 mph S 32%
15-Day Forecast
Today
10/28
Mostly Clear
23%
38°
61°
Thu
10/29
Partly Cloudy
3%
38°
62°
Fri
10/30
Partly Cloudy
8%
41°
66°
Sat
10/31
Mostly Clear
59%
39°
66°
Sun
11/1
Clear
60%
40°
60°
Mon
11/2
Drizzle
68%
34°
48°
Tue
11/3
Clear
35%
35°
53°
Wed
11/4
Clear
60%
36°
54°
Thu
11/5
Drizzle
60%
33°
52°
Fri
11/6
Drizzle
60%
37°
56°
Sat
11/7
Drizzle
60%
36°
54°
Sun
11/8
Clear
25%
36°
55°
Mon
11/9
Clear
25%
37°
56°
Tue
11/10
Drizzle
60%
37°
55°
Wed
11/11
Clear
60%
36°
55°
37
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
12 AQI 2.2 µg/m³
O3
Ground-level ozone
Dominant
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 37 Good 37 12
Fri 36 Good 36 17
Sat 32 Good 32 27
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 Wed Oct 28, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE17 J/kg
MLCAPE1 J/kg
MUCAPE17 J/kg
SBCIN0 J/kg
MLCIN-0 J/kg
Lifted Index1.0
Kinematics
0–6 km Shear41 kt
0–1 km Shear6 kt
Eff. Shear—
0–1 km SRH29
0–3 km SRH141
Eff. SRH—
Storm Motion286° @ 35 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index—
Thermo & Levels
PWAT0.36 in
0–3 km LR9.2 °C/km
700–500 LR7.7 °C/km
Total Totals—
LCL608 hPa
LFC812 hPa
EL526 hPa
Freezing Lvl5,394 ft