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

Summerlin South, Nevada Weather

The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →

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

Summerlin South, NV
Sunday, July 5 at 8:08 AM
87
°
Clear
Feels like
83°
Humidity
20%
Wind
6 mph
Sunrise
10:30 PM
Sunset
1:01 PM
Summerlin South, NV
Hour by hour · 24h
24-Hour ForecastSummerlin South, NV: 24-hour forecast. Temperatures range from 79 to 102 degrees Fahrenheit.
L 79°H 102°
Summerlin South, NV
7-day forecast
  1. Today
    Jul 5
    Overcast
    —
    —
    102°82°—
  2. Monday
    Jul 6
    Overcast
    —
    —
    101°79°-1°
  3. Tuesday
    Jul 7
    Clear
    —
    —
    103°84°+2°
  4. Wednesday
    Jul 8
    Clear
    —
    —
    105°87°+2°
  5. Thursday
    Jul 9
    Clear
    —
    —
    105°86°0°
  6. Friday
    Jul 10
    Clear
    —
    —
    105°83°0°
  7. Saturday
    Jul 11
    Clear
    —
    —
    107°87°+2°
Summerlin South, NV
Next 24 hours · Warm now
HOT 90°70°90°110°6a12p6p12anow 87°high 102°low 79°
Summerlin South, NV
Anemometer · 24h winds · from true
NESW
From · True
NNE
014° · backing 55°
Direction
NNE
014°
Sustained
6
mph
Gust
6
mph
Peak 24h
30
avg 11
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 11 · pk 30 @ 9:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 253SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Summerlin South, NV
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
915.9
+2.3 mb in 3h · rising rapidly · 27.05 inHg
Now
915.9
mb
3h
+2.3
mb
12h
+1.2
mb
24h
-1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 913–918
905910915920925-21h-18h-15h-12h-9h-6h-3h-24hNOW918.3913.2915.9
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Summerlin South, NV
Air quality
20
AQI
Good
↓-17 in 6h▲Peak ~33 @ 9 PM

AQI 20 (Good), driven by PM2.5. AQI down 17 over the last 6 hours — air quality is improving sharply. PM2.5 at 6.9 µg/m³ (AQI 38), ratio 0.54 with 6 mph wind — characteristic of long-range haze transport rather than a local source.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.

PM 2.5DRIVERGood
6.9μg/m³
PM 10Good
13μg/m³
NO₂Good
6μg/m³
OzoneGood
59μg/m³
UV IndexModerate
2.2

What's driving it

PM × Wind × Precip

PM2.5 at 6.9 µg/m³ (AQI 38), ratio 0.54 with 6 mph wind — characteristic of long-range haze transport rather than a local source.

PM2.5/PM10
0.54
Wind
light
Recent rain
0h in last 6h
Pattern
transport

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
Summerlin South, NV
Sky cover · visibility · 24h
Cloud cover
5%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
159.8mi
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
15:08 UTC · Summerlin South, NV · 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
15:08 UTC · Summerlin South, NV · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Summerlin South, NV
Satellite · infrared · animated
Summerlin South, NV
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Summerlin South, NV
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:00 AM
Sunrise
10:30 PM
Daylight
14h 31m
Sunset
1:01 PM
Civil dusk
8:33 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Summerlin South, NV
The moon
Waning Gibbous
72% illuminated
Moonrise
10:58 PM
Moonset
11:00 AM
In sign
♓︎ Pisces
Summerlin South, NV
Microseason
Jul 1–5

The monsoon settles in

insect
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Summerlin South at a glance

  • Today vs. normal: 11°F above the seasonal normal for this latitude
  • Last frost: March 24 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — Summerlin South

  1. Sun101°81°2%
  2. Mon101°79°2%
  3. Tue103°84°0%
  4. Wed105°87°0%
  5. Thu105°86°0%
  6. Fri105°83°1%
  7. Sat107°87°1%
  8. Sun107°89°5%
  9. Mon104°89°9%
  10. Tue100°85°13%
  11. Wed96°81°8%
  12. Thu98°86°10%
  13. Fri105°87°6%
  14. Sat112°96°10%
  15. Sun112°96°6%
  16. Mon111°97°10%

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

Right now in the garden

Peak growing season

As of July 5, 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.

January 1–5: Desert awakens in still light.January 6–10: Moisture lingers beneath the crust.January 11–15: First warmth breaks the shallow freeze.January 16–20: Quail begin their territorial chorus.January 21–25: Buds swell beneath the hard sun.January 26–31: Winter reaches its brightest point.February 1–5: Gold floods the bajada.February 6–10: Wildflower bloom spreads upslope.February 11–15: Hummingbirds stake territory claims.February 16–20: Sonoran wildflowers reach peak diversity.February 21–25: Rain clouds gather on the horizon.February 26–28: Late winter warmth intensifies.March 1–5: Green reaches from the roots upward.March 6–10: Desert creatures wake fully from dormancy.March 11–15: Saguaro flowers crown the desert.March 16–20: Caterpillars turn to wings.March 21–25: Equinox ignites the blooms.March 26–31: Saguaro crowns with flowers.April 1–5: Pre-monsoon heat begins.April 6–10: Brittlebush carpets the desert floor.April 11–15: Heat dome settles in hard.April 16–20: Saguaro fruit splits open red.April 21–25: Monsoon moisture approaches.April 26–30: Last frost recedes to memory.May 1–5: Monsoon signal fires light skies.May 6–10: First haboobs roll across.May 11–15: Heat reaches extremes daily.May 16–20: Saguaro crowns open white.May 21–25: Summer arrives in dust and lightning.May 26–31: Voices rise in monsoon dark.June 1–5: Heat hardens the dust.June 6–10: Monsoon shadows gather.June 11–15: The dry breath stills.June 16–20: The first anvil tops.June 21–25: Haboob rises from the basin.June 26–30: Monsoon doors creak open.July 1–5: The monsoon settles in.July 6–10: Verdant eruption.July 11–15: The lightning oracle speaks.July 16–20: Young raptors claim the thermal.July 21–25: Humidity weight.July 26–31: Storm chambers fruit.August 1–5: The monsoon exhales.August 6–10: The long drought renews.August 11–15: Currents turn cool and distant.August 16–20: Cicada chorus deepens.August 21–25: Monsoon's final breath.August 26–31: Heat begins to relent.September 1–5: Harvest moon over stone.September 6–10: Dew returns to the flats.September 11–15: Raptors ride the thermals.September 16–20: Equinox evening shadow.September 21–25: Thunder finally silent.September 26–30: Insects burrow deep.October 1–5: Desert dries to deep gold.October 6–10: Sandhill cranes return.October 11–15: Brittle beauty blooms.October 16–20: Frost paints stones white.October 21–25: First killing frost falls.October 26–31: Winter rains whisper in.November 1–5: Mesquite leaves turn gold.November 6–10: Ocotillo stands sentinel.November 11–15: First frost traces ridges.November 16–20: Saguaro stands naked.November 21–25: Pacific storms break the drought.November 26–30: North wind strips the way.December 1–5: Desert deepens into winter.December 6–10: True winter arrives.December 11–15: The shortest day looms.December 16–20: Solstice stillness settles.December 21–25: The sun turns north.December 26–31: Year's end 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 · July 1–5

The monsoon settles in

Afternoon thunderstorms now daily ritual. Rains transform the desert green within 72 hours. Dust clears; air smells alive. Microburst winds flatten entire sections of mesquite.

Day 186 of 365 · Wedge 37 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 Summerlin South tops out in July (~93°F) and dips lowest in December (~47°F), with February wettest at 0.9 inches and May driest at 0.1 inches.

MonthMean tempPrecipRainy days
January48°0.6″2
February53°0.9″2
March60°0.5″1
April67°0.3″1
May76°0.1″0
June87°0.1″0
July93°0.4″1
August91°0.4″1
September83°0.4″1
October69°0.4″1
November56°0.3″1
December47°0.5″1

Regional context

By the nearest station's NOAA NCEI 1991-2020 normals, Summerlin South sees 48°F Januarys and 93°F Julys, a 44°F range, plus around 4.8 inches of precipitation across 12 days.

Precipitation in Summerlin South peaks in the cool season: February averages 0.9 inches across 2.2 storm-fed days, while May bottoms out at 0.1 inches over just 0.2 rainy days. It is a winter-storm rhythm Summerlin South shares with places like Spring Valley, NV, Blue Diamond, NV and Las Vegas, NV.

Summerlin South rarely sees a hard freeze — its coldest month sits near 47°F — so planting spans most of the calendar. Heat peaks in July around 93°F, which confines cool-season crops to the shoulders of summer. Across Summerlin South, elevation and tree cover drive a 4-7°F spread in Summerlin South's overnight lows.

Similar climates: Spring Valley, NV, Blue Diamond, NV, Las Vegas, NV, Enterprise, NV, Winchester, NV.

Frequently asked

When does it freeze in Summerlin South?
In Summerlin South, expect the last spring frost near mid-April; Summerlin South's first autumn frost comes around mid-November.
What is the rainy season in Summerlin South?
February is the wettest month in Summerlin South, about 0.9 inches on average; the year totals roughly 5 inches.
What is the warmest month in Summerlin South?
On average July tops the year in Summerlin South at about 93°F.
What is the coldest month in Summerlin South?
The coldest stretch in Summerlin South falls in December, around 47°F on average.
When can I start a vegetable garden in Summerlin South?
Around mid-April, start frost-hardy crops in Summerlin South; tomatoes and basil belong a fortnight later.
How many rainy days does Summerlin South get?
Expect roughly 12 wet days a year in Summerlin South.
What hardiness zone is Summerlin South?
Because Summerlin South bottoms near 47°F in December, that winter low sets Summerlin South's USDA zone — verify by ZIP.
What is the 10-day forecast for Summerlin South?
Summerlin South'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 Summerlin South?
See this week's day-by-day rain chances for Summerlin South in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Summerlin South?
Current conditions for Summerlin South and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Summerlin South forecast updated?
The Summerlin South forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Summerlin South?
Today's sunrise and sunset times for Summerlin South 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 Summerlin South?
The next few days in Summerlin South's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Set in a hot desert zone, Summerlin South, Nevada swings from 48°F in the heart of winter to 93°F at midsummer — a 45°F arc.

Summerlin South sees close to 5 inches of precipitation annually, falling across some 12 wet days.

Summerlin South sits at 36.1°N; that 45°F seasonal swing frames planting windows and frost dates across Summerlin South.

All cities in Nevada →

Spring Valley, NV weather →

ZIP codes in Summerlin South

  • 89135

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.