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CheckWeather USLittleton
Forecast confidence: Medium · models disagree by 7°F

Littleton weather

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Drizzle,rain likely tomorrow

NWS, the American and the European model put Littleton's high today between 81° and 87°, a 7° split. Tomorrow looks heavy drizzle around 76°, with a 99% chance of rain.

83°59°
76°54°
71°51°
74°54°
79°55°
77°56°
Todaysplit ±7°Tomorrowsplit ±7°Sundaysplit ±7°Mondaysplit ±10°Tuesdaysplit ±8°Wednesdaymodels agree
NWSNational Blend (NBM)
81°
Drizzle
Today 81°·Low 59°·Rain 38%
AmericanNOAA GFS
87°
Cloudy
Today 87°·Low 60°·Rain 38%
EuropeanECMWF
82°
Heavy drizzle
Today 82°·Low 58°·Rain 71%
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Littleton weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Littleton weather in numbers

from 30 years of measured normals

Littleton swings 77°F across the year, from 89°F highs in July to 12°F lows in January, and May is usually the wettest month in a year that brings about 20 in of precipitation.

Warmest month
July
89°F average high
Coldest month
January
12°F average low
Wettest month
May
20 in a year
Below freezing
5 months
January, February, March, November and December
Comfortable
2 months
April and October
Residents
46,000
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The weather map: all three models at once

NWS, American, European side by side around Littleton and nearby towns.Live rain radar →
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Littleton hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Littleton 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Drizzle
83° 59°
±7°
Tomorrow
Heavy drizzle
76° 54°
±7°
Sun
Light drizzle
71° 51°
±7°
Mon
Light drizzle
74° 54°
±10°
Tue
Light drizzle
79° 55°
±8°
Wed
Partly cloudy
77° 56°
models agree
Thu
Cloudy
79° 57°
models agree
Fri
Partly cloudy
79° 58°
±11°
Sat
Mostly clear
81° 61°
±9°
Sun
Mostly clear
81° 55°
±4°
Mon
Light drizzle
76° 55°
±9°
Tue
Cloudy
81° 54°
±13°
Wed
Cloudy
84° 57°
models agree
Thu
Partly cloudy
86° 57°
models agree

Littleton, Colorado (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 Littleton 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.

Littleton 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 Littleton?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
78
/100rank #1
90±1.0°F95±1.6 mph5374% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
77
/100rank #2
86±1.4°F89±3.6 mph5877% 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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±7°81° to 87°±33%38% to 71% chance
Tomorrow±7°73° to 80°±61%38% to 99% chance
Sun±7°68° to 75°±43%43% to 86% chance
Mon±10°70° to 80°±23%16% to 39% chance
Tue±8°75° to 84°±21%28% to 49% 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 Littleton

today, local time
Sunrise
06:44
Sunset
19:03
Daylight
12h 19m

Common questions

What's the weather in Littleton today?
On this page we show what NWS, American, European each forecast for Littleton 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 Littleton today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Littleton 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 Littleton?
Over the last 30 days, the European model has been the most accurate for Littleton (CheckWeather Score 78/100), ahead of the American 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 Littleton?
July is typically the warmest month in Littleton, with average highs around 89°F.
How cold does Littleton get?
The coldest month in Littleton is January, when overnight lows average about 12°F.
How much rain does Littleton get?
Littleton sees roughly 20 in of precipitation a year, with May usually the wettest month.

Nearby

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