Weather StoryAlmanac, microseasons, and the day's weather story.

Aurora, Colorado Weather

Summer heat breaks with monsoon. Day 43 of summer. Read this microseason across nine climate regions →

Aurora weather forecast — hour by hour, 7-day outlook, NOAA radar

Aurora, CO
Sunday, August 2 at 8:57 AM
82
°
Clear
Feels like
78°
Humidity
27%
Wind
6 mph
Sunrise
11:59 PM
Sunset
2:10 PM
Aurora, CO
Hour by hour · 24h
24-Hour ForecastAurora, CO: 24-hour forecast. Temperatures range from 75 to 100 degrees Fahrenheit.
L 75°H 100°
Aurora, CO
7-day forecast
  1. Today
    Aug 2
    Overcast
    —
    —
    100°70°—
  2. Monday
    Aug 3
    Overcast
    17%
    —
    100°75°0°
  3. Tuesday
    Aug 4
    Overcast
    17%
    —
    83°60°-17°
  4. Wednesday
    Aug 5
    Overcast
    12%
    —
    90°62°+7°
  5. Thursday
    Aug 6
    Clear
    —
    —
    95°63°+5°
  6. Friday
    Aug 7
    Clear
    —
    —
    99°68°+4°
  7. Saturday
    Aug 8
    Overcast
    —
    —
    101°71°+2°
Aurora, CO
Next 24 hours · Mild now
HOT 90°70°88°105°12p6p12a6anow 79°high 100°low 75°
Aurora, CO
Anemometer · 24h winds · from true
NESW
From · True
NNW
332° · veering 6°
Direction
NNW
332°
Sustained
6
mph
Gust
6
mph
Peak 24h
29
avg 10 mph
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 10 mph · pk 29 mph @ 12:00a
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 349SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Aurora, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
831.1
+2.0 mb in 3h · rising · 24.54 inHg
Now
831.1
mb
3h
+2.0
mb
12h
-4.2
mb
24h
-6.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 828–840
820825830835840845-21h-18h-15h-12h-9h-6h-3h-24hNOW839.6827.9830.3
The low is filling — pressure climbing out of storm territory.
Aurora, CO
Air quality
44
AQI
Good
→-4 in 6h

AQI 44 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 6.4 µg/m³ (AQI 36) with a 0.88 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in stagnant air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
6.4μg/m³
PM 10Good
7μg/m³
NO₂Good
8μg/m³
OzoneModerate
70μg/m³
UV IndexLow
1.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 33 now. With UV 4.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19.

Present
AQI 33
UV peak
4.3 at 1 PM
Sky at peak
clear
Projected peak
AQI 19

PM × Wind × Precip

PM2.5 at 6.4 µg/m³ (AQI 36) with a 0.88 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in stagnant air, not road dust.

PM2.5/PM10
0.88
Wind
light
Recent rain
0h in last 6h
Pattern
stagnant smoke

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³300
Aurora, CO
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
136.0mi
UNLIMITED
185 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
14:57 UTC · Aurora, CO · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
14:57 UTC · Aurora, CO · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Aurora, CO
Satellite · infrared · animated
Aurora, CO
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Aurora, CO
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:30 AM
Sunrise
11:59 PM
Daylight
14h 11m
Sunset
2:10 PM
Civil dusk
8:42 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Aurora, CO
The moon
Waning Gibbous
84% illuminated
Moonrise
9:43 PM
Moonset
10:07 AM
In sign
♓︎ Pisces
Aurora, CO
Microseason
Aug 1–5

Summer heat breaks with monsoon

plant
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Aurora at a glance

  • Today vs. normal: 19°F above the seasonal normal for this latitude
  • Last frost: April 14 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 80010, 80011, 80012, 80013, 80014, 80015, 80016, 80017 +3 more

16-Day Forecast — Aurora

  1. Sun100°70°1%
  2. Mon100°75°17%
  3. Tue83°60°17%
  4. Wed90°62°12%
  5. Thu95°63°7%
  6. Fri99°68°3%
  7. Sat101°71°3%
  8. Sun98°69°11%
  9. Mon101°72°23%
  10. Tue98°69°32%
  11. Wed94°71°43%
  12. Thu90°69°48%
  13. Fri93°68°49%
  14. Sat92°64°50%
  15. Sun95°69°52%
  16. Mon97°67°44%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Aurora

Right now in the garden

Peak growing season

As of August 2, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Aurora

SPC includes Aurora in the general thunderstorm area tomorrow — no severe risk, but storms are possible.

  • TODAYNONENo severe risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

Sun & seasons in Aurora

Aurora sits in Arapahoe County, where the year’s longest day runs 14h 59m of daylight and its shortest just 9h 21m — a swing of +5h 38m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Denver, the state’s largest city, lies about 9 miles to the WNW. The nearest town Aurora tracks is Denver, roughly 9 miles to the WNW.

Air quality in Aurora’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 46). See the full air-quality history for Aurora.

January 1–5: Deep freeze grips the high peaks.January 6–10: Ice thickens on alpine tarns.January 11–15: Springs stir beneath locked earth.January 16–20: Grouse call from the transition zone.January 21–25: First signals of the soil's turning.January 26–31: Stream water crystallizes thick.February 1–5: The year's coldest fortnight begins.February 6–10: East wind carries a subtle promise.February 11–15: Snowmelt springs whisper beneath ice.February 16–20: Red-wing calls rise from the wetlands.February 21–25: Rain begins to trace the snowline upward.February 26–28: Mist gathers in the warming canyons.March 1–5: Grass and trees stir from their sleep.March 6–10: Hibernators break through frozen ground.March 11–15: First blooms open to the spring sun.March 16–20: Mountain bluebirds return to the summits.March 21–25: Spring equinox at the divide.March 26–31: Aspen catkins burst in clusters.April 1–5: Thunderstorms rumble over granite peaks.April 6–10: Swallows and swifts slice the warming sky.April 11–15: Sandhill cranes call through the wetlands.April 16–20: Rainbows arch over the snowfields.April 21–25: New growth explodes across the montane.April 26–30: Last frost yields to summer growth.May 1–5: Wildflowers crest the high meadows.May 6–10: Summer monsoon clouds gather southward.May 11–15: Snowmelt crests toward the divide.May 16–20: High country wildflowers peak.May 21–25: Summer heat accelerates the growing season.May 26–31: Summer settles into the high country.June 1–5: Pikas hayfeeding in granite peaks.June 6–10: Glacier lily carpets the snowmelt.June 11–15: Paintbrush crowns the ridges.June 16–20: Thunderheads build by noon.June 21–25: Long light holds the peaks.June 26–30: Monsoon moisture drifts north.July 1–5: Monsoon storms drench the south.July 6–10: Wind builds through canyons.July 11–15: Lightning crowns every peak.July 16–20: Elk herds claim alpine meadows.July 21–25: Pika caches reach their peak.July 26–31: Monsoon pulses weaken northward.August 1–5: Summer heat breaks with monsoon.August 6–10: First frost creeps to peaks.August 11–15: Cool wind returns from north.August 16–20: Monsoon clouds gather over the peaks.August 21–25: The monsoon breaks into scattered showers.August 26–31: Summer insects thin as autumn wind rises.September 1–5: Elk descend from summer high meadows.September 6–10: Dew crystallizes on high grass at dawn.September 11–15: Hawks begin the long crossing southward.September 16–20: Equinox: darkness claims the high passes.September 21–25: Thunder retreats as the monsoon dies.September 26–30: First frost hardens the high valleys.October 1–5: October: the aspen stands reach their peak.October 6–10: Aspen gold slides downslope with the chill.October 11–15: Snow settles on the high passes.October 16–20: Elk bugling fades as rut nears its end.October 21–25: First hard frost grips the basin.October 26–31: Late rains settle into November patterns.November 1–5: Aspen canopy falls to earth.November 6–10: Granite bones emerge from cover.November 11–15: Earth begins to harden.November 16–20: Bare ranges hold silence.November 21–25: Snow returns to the peaks.November 26–30: North wind strips the landscape.December 1–5: Deep darkness settles over the ranges.December 6–10: Winter locks the high country.December 11–15: Elk withdraw to winter range.December 16–20: Ice thickens across frozen water.December 21–25: Winter solstice — the sun returns.December 26–31: The year closes in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · August 1–5

Summer heat breaks with monsoon

Late summer monsoon surge; southern reaches drench under Gulf moisture; northern peaks cool rapidly as monsoon remnants push north.

Day 214 of 365 · Wedge 43 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

The year in Aurora tops out in July (~75°F) and dips lowest in December (~32°F), with May wettest at 2.3 inches and January driest at 0.5 inches.

MonthMean tempPrecipRainy days
January32°0.5″2
February33°0.5″2
March42°1.1″3
April48°1.7″4
May58°2.3″5
June69°1.7″4
July75°2.1″4
August73°1.8″4
September64°1.5″3
October51°1.0″3
November40°0.7″2
December32°0.5″2

Regional context

Per NOAA NCEI 1991-2020 normals, Aurora runs from a 32°F January mean to 75°F in July, a 43°F seasonal spread, with near 15.4 inches of precipitation across about 38 wet days.

Precipitation in Aurora runs summer-dominant: May averages 2.3 inches across 5.2 days of warm-season storms, while January drops to 0.5 inches over 1.6 rainy days of drier cool air. It is a warm-season-wet pattern Aurora shares with places like Aetna Estates, CO, Watkins, CO and Denver, CO.

Around mid-April, Aurora sheds its freezing nights — peas, lettuce, spinach, and radishes go into Aurora's beds. Heat-demanding starts go out a fortnight on in Aurora, after the soil warms and cold snaps clear. By mid-November, frost is back in Aurora — protect or harvest anything tender. A creek-bottom lot in Aurora can lag Aurora's last frost 7-10 days behind a south slope.

Similar climates: Aetna Estates, CO, Watkins, CO, Denver, CO, Foxfield, CO, Four Square Mile, CO.

Naturalist notes

Late May brings the emergence of prairie sunflower buds across Colorado's Front Range grasslands.

Mountain bluebirds return to their nesting territories during April's warming days.

Frequently asked

When does it freeze in Aurora?
In Aurora, expect the last spring frost near mid-April; Aurora's first autumn frost comes around mid-November.
What is the rainy season in Aurora?
May is the wettest month in Aurora, about 2.3 inches on average; the year totals roughly 15 inches.
What is the warmest month in Aurora?
The warmest stretch in Aurora comes in July, around 75°F on average.
What is the coldest month in Aurora?
On average December is the chilliest month in Aurora, about 32°F.
When can I start a vegetable garden in Aurora?
Aurora's last frost (mid-April) cues hardy greens; in Aurora, hold heat-lovers two weeks past.
How many rainy days does Aurora get?
Expect roughly 38 wet days a year in Aurora.
What hardiness zone is Aurora?
Aurora's USDA zone comes from its December mean (32°F); enter the ZIP on the USDA lookup for the number.
What is the 10-day forecast for Aurora?
Aurora's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Aurora?
See this week's day-by-day rain chances for Aurora in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Aurora?
Current conditions for Aurora and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Aurora forecast updated?
The Aurora forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Aurora?
Today's sunrise and sunset times for Aurora are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Aurora?
The next few days in Aurora's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Aurora's hot desert climate in Colorado pairs 32°F Januarys with 75°F Julys, 43°F apart across the seasons.

Across the year, Aurora collects about 15 inches of precipitation over roughly 38 days with measurable rain or snow.

The 43°F gap between Aurora's summer and winter, at 39.7°N, shapes Aurora's frost calendar.

All cities in Colorado →

Denver, CO weather →

ZIP codes in Aurora

  • 80247
  • 80137
  • 80045
  • 80018
  • 80019
  • 80016
  • 80014
  • 80015
  • 80012
  • 80013
  • 80010
  • 80017
  • 80011
  • 80040
  • 80041
  • 80042
  • 80044
  • 80046
  • 80047

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.