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CheckWeather USCheyenne
Forecast confidence: High · models disagree by 3°F

Cheyenne weather

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Light drizzle,rain likely tomorrow

NWS, the American and the European model agree on a high near 86° in Cheyenne today. Tomorrow looks rain around 85°, with a 59% chance of rain.

86°61°
85°59°
82°60°
81°59°
79°52°
85°55°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±8°Thursdaysplit ±4°
NWSNational Blend (NBM)
85°
Light drizzle
Today 85°·Low 61°·Rain 12%
AmericanNOAA GFS
88°
Cloudy
Today 88°·Low 59°·Rain 12%
EuropeanECMWF
86°
Light drizzle
Today 86°·Low 62°·Rain 12%

The weather map: all three models at once

NWS, American, European side by side around Cheyenne and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Light drizzle
86° 61°
models agree
Tomorrow
Rain
85° 59°
models agree
Mon
Light drizzle
82° 60°
models agree
Tue
Partly cloudy
81° 59°
models agree
Wed
Mostly clear
79° 52°
±8°
Thu
Mostly clear
85° 55°
±4°
Fri
Mostly clear
84° 58°
±6°
Sat
Drizzle
69° 50°
±14°
Sun
Light drizzle
66° 46°
±12°
Mon
Mostly clear
73° 44°
±16°
Tue
Light drizzle
76° 50°
±8°
Wed
Partly cloudy
85° 55°
models agree
Thu
Cloudy
82° 57°
models agree
Fri
Heavy drizzle
77° 61°
models agree

Cheyenne, WY is at its warmest in Jul (average highs near 83°F) and coldest in Jan (lows around 16°F), with roughly 18 in of precipitation across the year. Below, compare what NWS, American, European forecast for Cheyenne right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Cheyenne climate by month

average daytime high and overnight low across a typical year
Jan
32°
16°
Feb
40°
20°
Mar
43°
23°
Apr
54°
31°
May
65°
42°
Jun
75°
54°
Jul
83°
58°
Aug
81°
58°
Sep
77°
52°
Oct
63°
40°
Nov
47°
29°
Dec
44°
28°

Which forecast is most accurate in Cheyenne?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
85
/100rank #1
88±1.2°F94±2.0 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
65
/100rank #2
74±2.6°F92±2.5 mph3665% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°85° to 88°models agree12% to 12% chance
Tomorrow±1°85° to 86°±38%21% to 59% chance
Mon±3°81° to 84°±45%12% to 57% chance
Tue±3°79° to 82°±7%14% to 21% chance
Wed±8°76° to 84°±6%14% to 20% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Cheyenne

today, local time
Sunrise
06:30
Sunset
19:25
Daylight
12h 55m

Common questions

What's the weather in Cheyenne today?
On this page we show what NWS, American, European each forecast for Cheyenne today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Cheyenne today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Cheyenne and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Cheyenne?
Over the last 30 days, the European model has been the most accurate for Cheyenne (CheckWeather Score 85/100), ahead of the American at 65. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Cheyenne?
July is typically the warmest month in Cheyenne, with average highs around 83°F.
How cold does Cheyenne get?
The coldest month in Cheyenne is January, when overnight lows average about 16°F.
How much rain does Cheyenne get?
Cheyenne sees roughly 18 in of precipitation a year, with May usually the wettest month.

Nearby

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