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Moreno Valley, California Weather

August begins in scorching stillness. Day 43 of summer. Read this microseason across nine climate regions →

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

Moreno Valley, CA
Sunday, August 2 at 7:59 AM
76
°
Clear
Feels like
78°
Humidity
50%
Wind
1 mph
Sunrise
11:01 PM
Sunset
12:48 PM
Moreno Valley, CA
Hour by hour · 24h
24-Hour ForecastMoreno Valley, CA: 24-hour forecast. Temperatures range from 67 to 103 degrees Fahrenheit.
L 67°H 103°
Moreno Valley, CA
7-day forecast
  1. Today
    Aug 2
    Clear
    —
    —
    103°69°—
  2. Monday
    Aug 3
    Clear
    —
    —
    101°67°-2°
  3. Tuesday
    Aug 4
    Clear
    —
    —
    101°66°0°
  4. Wednesday
    Aug 5
    Clear
    —
    —
    100°68°-1°
  5. Thursday
    Aug 6
    Clear
    —
    —
    101°67°+1°
  6. Friday
    Aug 7
    Light Drizzle
    —
    —
    100°68°-1°
  7. Saturday
    Aug 8
    Clear
    —
    —
    100°69°0°
Moreno Valley, CA
Next 24 hours · Mild now
HOT 90°60°85°110°12p6p12a6anow 71°high 103°low 67°
Moreno Valley, CA
Anemometer · 24h winds · from true
NESW
From · True
WNW
292° · backing 165°
Direction
WNW
292°
Sustained
1
mph
Gust
3
mph
Peak 24h
17
avg 5 mph
Beaufort · 1 · LIGHT AIR
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 5 mph · pk 17 mph @ 6:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 151SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Moreno Valley, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
953.7
-0.4 mb in 3h · steady · 28.16 inHg
Now
953.7
mb
3h
-0.4
mb
12h
-1.9
mb
24h
-3.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 953–958
945950955960965-21h-18h-15h-12h-9h-6h-3h-24hNOW958.2952.6952.6
Deep low — expect rough seas, strong wind, and persistent rain.
Moreno Valley, CA
Air quality
54
AQI
Moderate
↓-7 in 6h

AQI 54 (Moderate), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 12.4 µg/m³ (AQI 57) with a 0.95 fine-to-coarse ratio and 1 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 2.5DRIVERModerate
12.4μg/m³
PM 10Good
13μg/m³
NO₂Good
20μg/m³
OzoneModerate
76μg/m³
UV IndexLow
0.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 36 now. With UV 1.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9.

Present
AQI 36
UV peak
1.0 at 1 PM
Sky at peak
clear
Projected peak
AQI 9

PM × Wind × Precip

PM2.5 at 12.4 µg/m³ (AQI 57) with a 0.95 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.

PM2.5/PM10
0.95
Wind
calm
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
Moreno Valley, CA
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
74.4mi
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
14:59 UTC · Moreno Valley, CA · 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
14:59 UTC · Moreno Valley, CA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Moreno Valley, CA
Satellite · infrared · animated
Moreno Valley, CA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Moreno Valley, CA
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:35 AM
Sunrise
11:01 PM
Daylight
13h 47m
Sunset
12:48 PM
Civil dusk
8:17 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Moreno Valley, CA
The moon
Waning Gibbous
84% illuminated
Moonrise
9:33 PM
Moonset
9:58 AM
In sign
♓︎ Pisces
Moreno Valley, CA
Microseason
Aug 1–5

August begins in scorching stillness

plant
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Moreno Valley at a glance

  • Today vs. normal: 7°F above the seasonal normal for this latitude
  • Last frost: March 11 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 92551, 92553, 92555, 92557

16-Day Forecast — Moreno Valley

  1. Sun103°69°0%
  2. Mon101°67°0%
  3. Tue101°66°0%
  4. Wed100°68°0%
  5. Thu101°67°1%
  6. Fri100°68°1%
  7. Sat100°69°2%
  8. Sun99°67°2%
  9. Mon96°65°2%
  10. Tue96°65°0%
  11. Wed95°65°1%
  12. Thu96°64°6%
  13. Fri98°65°20%
  14. Sat96°66°14%
  15. Sun99°65°9%
  16. Mon101°64°13%

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

Live wind & temperature near Moreno Valley

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.

Sun & seasons in Moreno Valley

Moreno Valley sits in Riverside County, where the year’s longest day runs 14h 25m of daylight and its shortest just 9h 53m — a swing of +4h 31m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Los Angeles, the state’s largest city, lies about 70 miles to the W. The nearest town Moreno Valley tracks is Riverside, roughly 11 miles to the W.

Air quality in Moreno Valley’s county has trended cleaner since 2020; its cleanest year on record was 2022 (median AQI 77). See the full air-quality history for Moreno Valley.

January 1–5: New year in coastal mist.January 6–10: Hills hold the winter cold.January 11–15: Light lengthens over wet earth.January 16–20: The green pulse quickens.January 21–25: Spring green spreads inland.January 26–31: Winter's grip releases.February 1–5: Fog lifts, flowers open.February 6–10: Blooms erupt across chaparral.February 11–15: Winter blooms at their peak.February 16–20: Rivers recede, flowers spread.February 21–25: Earth warms, flowers rush upslope.February 26–28: Spring advances on cool winds.March 1–5: Grass and trees bud and break.March 6–10: Insects wake and feed.March 11–15: Blossoms crown the hillsides.March 16–20: Monarch chrysalis emergence.March 21–25: Light overtakes dark at equinox.March 26–31: California poppy ablaze.April 1–5: Spring rain feeds the seedlings.April 6–10: Warblers flood the understory.April 11–15: Allen's hummingbirds in courtship dives.April 16–20: Coastal fog settles; sun breaks midday.April 21–25: Oak canopies full and green.April 26–30: Chaparral awakens after spring rains.May 1–5: Coastal wildflowers at their peak.May 6–10: Gray whales complete their migration north.May 11–15: Redwood coast in cool shade.May 16–20: Fog and sun in daily rhythm.May 21–25: Summer approaches; hills turn gold.May 26–31: Dry season begins; tule fog in valleys.June 1–5: Coastal fog thickens at dawn.June 6–10: California poppies fade as heat rises.June 11–15: Summer solstice light stretched thin.June 16–20: Bay laurel fragrance sweetens shade.June 21–25: Longest daylight, driest air.June 26–30: Fog banks mask the turning tide.July 1–5: Summer heat deepens across the valleys.July 6–10: Warm winds drive dryness inland.July 11–15: Pacific high settles in firmly.July 16–20: Young hawks take to the thermals.July 21–25: Peak fire season, peak heat.July 26–31: Chaparral poised for ignition.August 1–5: August begins in scorching stillness.August 6–10: Autumn's first cool breath arrives.August 11–15: Cool winds signal the turning year.August 16–20: Evening cicada chorus.August 21–25: Marine layer descent.August 26–31: Monarch staging begins.September 1–5: Fire season intensity.September 6–10: Dew on drying grasses.September 11–15: Raptor passage begins.September 16–20: Equinox descent.September 21–25: Ceanothus blooms again.September 26–30: Insects retreat below.October 1–5: Creeks begin to whisper.October 6–10: Santa Ana wind season.October 11–15: Wildflower anticipation.October 16–20: Chaparral embers glow.October 21–25: First atmospheric river looms.October 26–31: Rains return at last.November 1–5: Coast live oak leaves turn amber.November 6–10: California lilac blooms in winter light.November 11–15: First rain greens the chaparral.November 16–20: Coastal fog thickens as storms approach.November 21–25: Thanksgiving rains swell the valleys.November 26–30: Autumn's last breath yields to winter.December 1–5: December arrives, storms accelerate.December 6–10: Winter solstice season intensifies.December 11–15: Deep winter: rivers at flood stage.December 16–20: Winter salmon runs peak in northern rivers.December 21–25: Winter solstice: the sun turns.December 26–31: Year's end in wind and rain.🌱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

August begins in scorching stillness

Calm days dominate early August; temperatures peak; the entire ecosystem is in survival mode.

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——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

August is Moreno Valley's warmest stretch (~80°F) and December its coldest (~50°F); precipitation crests in February at 2.7 inches and ebbs in June to 0.0 inches.

MonthMean tempPrecipRainy days
January50°2.5″11
February52°2.7″10
March54°2.5″13
April60°1.2″9
May67°0.4″6
June73°0.0″2
July79°0.4″3
August80°0.3″3
September76°0.3″3
October68°0.5″5
November57°1.2″7
December50°2.2″10

Regional context

Drawing on NOAA NCEI 1991-2020 normals, Moreno Valley's January averages 50°F and July 79°F — 29°F apart — while precipitation totals roughly 14.3 inches over some 81 days.

Moreno Valley's moisture rides winter storm tracks: February brings 2.7 inches over 10.2 wet days, while June sees only 0.0 inches across 1.8 days in the dry warm season. It is a winter-storm rhythm Moreno Valley shares with places like March ARB, CA, Mead Valley, CA and Lakeview, CA.

Moreno Valley rarely sees a hard freeze — its coldest month sits near 50°F — so planting spans most of the calendar. Heat peaks in August around 80°F, which confines cool-season crops to the shoulders of summer. Within Moreno Valley, low or inland lots lose 3-5°F overnight versus Moreno Valley's coastal ground.

Similar climates: March ARB, CA, Mead Valley, CA, Lakeview, CA, Highgrove, CA, Loma Linda, CA.

Naturalist notes

California poppies begin their peak bloom in late April, painting hillsides orange across the region.

Anna's hummingbirds start their primary nesting season in March, with males performing elaborate dive displays.

Frequently asked

When does it freeze in Moreno Valley?
In Moreno Valley, expect the last spring frost near mid-March; Moreno Valley's first autumn frost comes around mid-December.
What is the rainy season in Moreno Valley?
February is the wettest month in Moreno Valley, about 2.7 inches on average; the year totals roughly 14 inches.
What is the warmest month in Moreno Valley?
On average August tops the year in Moreno Valley at about 80°F.
What is the coldest month in Moreno Valley?
The coldest stretch in Moreno Valley falls in December, around 50°F on average.
When can I start a vegetable garden in Moreno Valley?
Around mid-March, start frost-hardy crops in Moreno Valley; tomatoes and basil belong a fortnight later.
How many rainy days does Moreno Valley get?
Expect roughly 81 wet days a year in Moreno Valley.
What hardiness zone is Moreno Valley?
With December around 50°F, Moreno Valley's zone reflects that minimum — the USDA ZIP map confirms Moreno Valley's band.
What is the 10-day forecast for Moreno Valley?
Moreno Valley'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 Moreno Valley?
See this week's day-by-day rain chances for Moreno Valley in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Moreno Valley?
Current conditions for Moreno Valley and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Moreno Valley forecast updated?
The Moreno Valley forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Moreno Valley?
Today's sunrise and sunset times for Moreno Valley 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 Moreno Valley?
The next few days in Moreno Valley's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

The hot-summer Mediterranean climate of Moreno Valley, California carries typical Januarys near 50°F and Julys around 79°F — 29°F of seasonal travel.

Moreno Valley sees close to 14 inches of precipitation annually, falling across some 81 wet days.

From 33.9°N, Moreno Valley sees a 29°F seasonal swing that governs Moreno Valley's planting and frost windows.

All cities in California →

Riverside, CA weather →

ZIP codes in Moreno Valley

  • 92551
  • 92553
  • 92555
  • 92557
  • 92552
  • 92554
  • 92556

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.