Moreno Valley, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Moreno Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Clear——91°63°—
- MondayJul 6Clear——92°60°+1°
- TuesdayJul 7Clear——97°61°+5°
- WednesdayJul 8Clear——101°62°+4°
- ThursdayJul 9Clear——102°66°+1°
- FridayJul 10Overcast——101°64°-1°
- SaturdayJul 11Overcast——94°66°-7°
AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.72 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 47 around 1 PM.
- Present
- AQI 33
- UV peak
- 10.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 47
PM × Wind × Precip
PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.72 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.72
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:04 PM
- Moonset
- 11:07 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Moreno Valley at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: March 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 92551, 92553, 92555, 92557
16-Day Forecast — Moreno Valley
- Sun91°63°1%
- Mon92°60°1%
- Tue97°61°0%
- Wed101°62°0%
- Thu102°66°0%
- Fri101°64°0%
- Sat94°66°1%
- Sun91°64°2%
- Mon101°67°10%
- Tue105°73°16%
- Wed103°75°8%
- Thu105°76°21%
- Fri103°76°18%
- Sat101°74°10%
- Sun105°74°10%
- Mon106°72°10%
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 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.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall 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.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 50° | 2.5″ | 11 |
| February | 52° | 2.7″ | 10 |
| March | 54° | 2.5″ | 13 |
| April | 60° | 1.2″ | 9 |
| May | 67° | 0.4″ | 6 |
| June | 73° | 0.0″ | 2 |
| July | 79° | 0.4″ | 3 |
| August | 80° | 0.3″ | 3 |
| September | 76° | 0.3″ | 3 |
| October | 68° | 0.5″ | 5 |
| November | 57° | 1.2″ | 7 |
| December | 50° | 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.
ZIP codes in Moreno Valley
- 92551
- 92553
- 92555
- 92557
- 92552
- 92554
- 92556