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CheckWeather USSouthglenn
Forecast confidence: High · models disagree by 2°F

Southglenn weather

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Partly cloudy,rain likely tomorrow

NWS, the American and the European model agree on a high near 92° in Southglenn today. Tomorrow looks light drizzle around 91°, with a 63% chance of rain.

92°62°
91°62°
88°63°
86°62°
83°61°
89°59°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±4°Tuesdaysplit ±5°Wednesdaysplit ±7°Thursdaysplit ±5°
NWSNational Blend (NBM)
91°
Partly cloudy
Today 91°·Low 65°·Rain 11%
AmericanNOAA GFS
93°
Cloudy
Today 93°·Low 65°·Rain 11%
EuropeanECMWF
91°
Light drizzle
Today 91°·Low 58°·Rain 10%

The weather map: all three models at once

NWS, American, European side by side around Southglenn 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
Partly cloudy
92° 62°
models agree
Tomorrow
Light drizzle
91° 62°
models agree
Mon
Light drizzle
88° 63°
±4°
Tue
Light drizzle
86° 62°
±5°
Wed
Mostly clear
83° 61°
±7°
Thu
Mostly clear
89° 59°
±5°
Fri
Mostly clear
89° 60°
±5°
Sat
Heavy drizzle
79° 58°
±13°
Sun
Light drizzle
71° 56°
±14°
Mon
Light drizzle
77° 51°
±14°
Tue
Light drizzle
82° 53°
±9°
Wed
Clear
88° 52°
models agree
Thu
Cloudy
89° 57°
models agree
Fri
Light drizzle
81° 59°
models agree

Southglenn, CO is at its warmest in Jul (average highs near 89°F) and coldest in Jan (lows around 12°F), with roughly 20 in of precipitation across the year. Below, compare what NWS, American, European forecast for Southglenn 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.

Southglenn climate by month

average daytime high and overnight low across a typical year
Jan
36°
12°
Feb
46°
16°
Mar
50°
23°
Apr
62°
33°
May
71°
43°
Jun
83°
54°
Jul
89°
58°
Aug
89°
60°
Sep
82°
51°
Oct
70°
40°
Nov
52°
26°
Dec
48°
24°

Which forecast is most accurate in Southglenn?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
American logo
American ★ Best
82
/100rank #1
88±1.2°F86±4.4 mph7184% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
77
/100rank #2
87±1.3°F95±1.5 mph5374% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

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±2°91° to 93°±1%10% to 11% chance
Tomorrow±3°90° to 92°±54%9% to 63% chance
Mon±4°86° to 91°±54%34% to 88% chance
Tue±5°83° to 88°±30%23% to 53% chance
Wed±7°81° to 87°±1%22% to 23% 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 Southglenn

today, local time
Sunrise
06:32
Sunset
19:24
Daylight
12h 52m

Common questions

What's the weather in Southglenn today?
On this page we show what NWS, American, European each forecast for Southglenn 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 Southglenn today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Southglenn 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 Southglenn?
Over the last 30 days, the American model has been the most accurate for Southglenn (CheckWeather Score 82/100), ahead of the European at 77. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Southglenn?
July is typically the warmest month in Southglenn, with average highs around 89°F.
How cold does Southglenn get?
The coldest month in Southglenn is January, when overnight lows average about 12°F.
How much rain does Southglenn get?
Southglenn sees roughly 20 in of precipitation a year, with May usually the wettest month.

Nearby

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