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CheckWeather USThornton
Forecast confidence: High · models disagree by 1°F

Thornton weather

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Partly cloudy,rain likely tomorrow

NWS, the American and the European model agree on a high near 93° in Thornton today. Tomorrow looks light drizzle around 92°, with a 37% chance of rain.

93°63°
92°65°
88°64°
87°65°
84°65°
91°63°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±8°Thursdaysplit ±5°
NWSNational Blend (NBM)
92°
Partly cloudy
Today 92°·Low 66°·Rain 4%
AmericanNOAA GFS
94°
Cloudy
Today 94°·Low 62°·Rain 4%
EuropeanECMWF
93°
Mostly clear
Today 93°·Low 62°·Rain 25%

The weather map: all three models at once

NWS, American, European side by side around Thornton 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
93° 63°
models agree
Tomorrow
Light drizzle
92° 65°
models agree
Mon
Cloudy
88° 64°
models agree
Tue
Light drizzle
87° 65°
models agree
Wed
Mostly clear
84° 65°
±8°
Thu
Partly cloudy
91° 63°
±5°
Fri
Mostly clear
90° 65°
models agree
Sat
Light drizzle
81° 59°
±13°
Sun
Light drizzle
73° 56°
±12°
Mon
Light drizzle
77° 52°
±16°
Tue
Mostly clear
82° 55°
±9°
Wed
Clear
89° 58°
models agree
Thu
Cloudy
89° 64°
models agree
Fri
Light drizzle
83° 65°
models agree

Thornton, CO is at its warmest in Jul (average highs near 88°F) and coldest in Jan (lows around 13°F), with roughly 19 in of precipitation across the year. Below, compare what NWS, American, European forecast for Thornton 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.

Thornton climate by month

average daytime high and overnight low across a typical year
Jan
34°
13°
Feb
43°
17°
Mar
50°
24°
Apr
62°
34°
May
70°
45°
Jun
81°
55°
Jul
88°
60°
Aug
87°
61°
Sep
83°
53°
Oct
69°
41°
Nov
50°
27°
Dec
47°
25°

Which forecast is most accurate in Thornton?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
81
/100rank #1
88±1.2°F91±3.0 mph6581% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
79
/100rank #2
82±1.8°F92±2.6 mph6581% 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±1°92° to 94°±21%4% to 25% chance
Tomorrow±2°91° to 93°±25%12% to 37% chance
Mon±1°87° to 88°±43%33% to 76% chance
Tue±4°85° to 89°±22%21% to 43% chance
Wed±8°80° to 88°models agree16% to 16% 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 Thornton

today, local time
Sunrise
06:31
Sunset
19:25
Daylight
12h 54m

Common questions

What's the weather in Thornton today?
On this page we show what NWS, American, European each forecast for Thornton 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 Thornton today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Thornton 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 Thornton?
Over the last 30 days, the European model has been the most accurate for Thornton (CheckWeather Score 81/100), ahead of the American at 79. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Thornton?
July is typically the warmest month in Thornton, with average highs around 88°F.
How cold does Thornton get?
The coldest month in Thornton is January, when overnight lows average about 13°F.
How much rain does Thornton get?
Thornton sees roughly 19 in of precipitation a year, with May usually the wettest month.

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