Hesperia, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Hesperia weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——87°68°—
- MondayJul 6Clear——89°65°+2°
- TuesdayJul 7Clear——95°64°+6°
- WednesdayJul 8Clear——99°64°+4°
- ThursdayJul 9Clear——99°66°0°
- FridayJul 10Overcast——97°66°-2°
- SaturdayJul 11Overcast——95°68°-2°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.6 µg/m³, PM10 at 7.2 µg/m³ — typical background levels with no transport signature.
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 31 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 44 around 1 PM.
- Present
- AQI 31
- UV peak
- 10.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 5.6 µg/m³, PM10 at 7.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.78
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:05 PM
- Moonset
- 11:08 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Hesperia at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: March 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 92344, 92345
16-Day Forecast — Hesperia
- Sun87°68°1%
- Mon89°65°1%
- Tue95°64°0%
- Wed99°64°0%
- Thu99°66°0%
- Fri97°66°1%
- Sat95°68°2%
- Sun89°64°3%
- Mon99°64°10%
- Tue93°71°19%
- Wed92°71°7%
- Thu100°73°13%
- Fri101°74°19%
- Sat93°75°10%
- Sun100°72°19%
- Mon101°73°18%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Hesperia
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
The year in Hesperia tops out in July (~81°F) and dips lowest in December (~45°F), with February wettest at 1.3 inches and June driest at 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 46° | 1.0″ | 2 |
| February | 48° | 1.3″ | 3 |
| March | 53° | 0.8″ | 2 |
| April | 59° | 0.3″ | 1 |
| May | 66° | 0.1″ | 0 |
| June | 75° | 0.0″ | 0 |
| July | 81° | 0.2″ | 1 |
| August | 80° | 0.1″ | 0 |
| September | 74° | 0.2″ | 0 |
| October | 63° | 0.3″ | 1 |
| November | 52° | 0.3″ | 1 |
| December | 45° | 0.9″ | 2 |
Regional context
Hesperia's climate, from NOAA NCEI 1991-2020 station normals, pairs 46°F Januarys with 81°F Julys — a 35°F swing. About 5.6 inches of precipitation falls over roughly 13 days a year.
Cool-season fronts carry Hesperia's rain: February logs 1.3 inches on 2.8 days, against June's 0.0 inches on 0.1 — winter does the heavy lifting in Hesperia. That groups Hesperia with places like Oak Hills, CA, Mountain View Acres, CA and Spring Valley Lake, CA on the same cool-season storm track.
Hesperia's growing window opens around mid-March, once Hesperia's overnight lows stop freezing — sow lettuce, chard, arugula, and mustard greens. Warm-soil crops in Hesperia wait about two weeks past Hesperia's last frost, once the soil warms. Hesperia's window closes around mid-December as overnight lows return below freezing. In Hesperia, low spots run 4-7°F colder than nearby slopes, nudging Hesperia's frost dates a week.
Similar climates: Oak Hills, CA, Mountain View Acres, CA, Spring Valley Lake, CA, Victorville, CA, Crestline, CA.
Naturalist notes
By late May, western side-blotched lizards are emerging to bask on open rock surfaces during mid-morning warmth.
Look toward the western horizon after sunset in early June: Venus may appear as a brilliant evening star in twilight.
Frequently asked
- When does it freeze in Hesperia?
- In Hesperia, expect the last spring frost near mid-March; Hesperia's first autumn frost comes around mid-December.
- What is the rainy season in Hesperia?
- February is the wettest month in Hesperia, about 1.3 inches on average; the year totals roughly 6 inches.
- What is the warmest month in Hesperia?
- On average July tops the year in Hesperia at about 81°F.
- What is the coldest month in Hesperia?
- The coldest stretch in Hesperia falls in December, around 45°F on average.
- When can I start a vegetable garden in Hesperia?
- Hardy spring crops go in near mid-March in Hesperia; tender peppers and squash wait 10–14 days.
- How many rainy days does Hesperia get?
- Expect roughly 13 wet days a year in Hesperia.
- What hardiness zone is Hesperia?
- Since December in Hesperia averages 45°F, Hesperia's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Hesperia?
- Hesperia'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 Hesperia?
- See this week's day-by-day rain chances for Hesperia in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Hesperia?
- Current conditions for Hesperia and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Hesperia forecast updated?
- The Hesperia forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Hesperia?
- Today's sunrise and sunset times for Hesperia 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 Hesperia?
- The next few days in Hesperia's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a hot-summer Mediterranean zone, Hesperia, California swings from 46°F in the heart of winter to 81°F at midsummer — a 35°F arc.
Hesperia sees close to 6 inches of precipitation annually, falling across some 13 wet days.
Hesperia sits at 34.4°N; that 35°F seasonal swing frames planting windows and frost dates across Hesperia.
ZIP codes in Hesperia
- 92345
- 92344
- 92340