Hemet, California Weather
Ceanothus blooms again. Day 93 of summer. Read this microseason across nine climate regions →
Hemet weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 12:40 AM PDT · Open-Meteo
- TodaySep 21Overcast later——81°64°—
- TuesdaySep 22Overcast——87°61°+6°
- WednesdaySep 23Clear——97°63°+10°
- ThursdaySep 24Clear——96°67°-1°
- FridaySep 25Clear——97°66°+1°
- SaturdaySep 26Overcast——96°67°-1°
- SundaySep 27Overcast——96°69°0°
Air quality now AQI 49 · Good
AQI 49 (Good), driven by PM2.5. AQI up 7 over the last 6 hours (gradual rise). PM2.5 at 6.0 µg/m³ (AQI 33) with a 0.79 fine-to-coarse ratio and 5 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 31 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 14.
- Present
- AQI 31
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 6.0 µg/m³ (AQI 33) with a 0.79 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.79
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:06 PM
- Moonset
- 1:32 AM
- In sign
- ♑︎ Capricorn
Ceanothus blooms again
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Hemet at a glance
- Today vs. normal: Today averages 73°F (high 81°F, low 64°F), 2°F below the 75°F normal for Sep 21
- Last frost: January 31 (1991–2020 median, NOAA station 7 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant beans, squash, fall brassicas, carrots; harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Hemet
- Mon80°62°2%
- Tue87°61°0%
- Wed97°63°2%
- Thu96°67°9%
- Fri97°66°3%
- Sat96°67°1%
- Sun96°69°6%
- Mon100°71°11%
- Tue99°78°16%
- Wed87°72°12%
- Thu73°66°4%
- Fri92°65°6%
- Sat94°72°10%
- Sun97°74°9%
- Mon82°68°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Hemet
Interactive wind and temperature map centered on Hemet — it loads in your browser. Open the full weather map.
Right now in the garden
Peak growing season
As of September 21, the growing season is at its peak — the first frost (around December 10) is weeks away. Fall transplants go in about 10–12 weeks before the first frost, September 17 to October 1 here. This city's planting calendar for September: plant beans, squash, fall brassicas, and carrots; harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Hemet
Hemet sits in Riverside County, where the year’s longest day runs 14h 24m of daylight and its shortest just 9h 54m — a swing of +4h 29m 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 85 miles to the WNW. The nearest town Hemet tracks is Moreno Valley, roughly 18 miles to the NW.
Air quality in Hemet
Air quality in Hemet’s county has trended cleaner since 2020; its cleanest year on record was 2022 (median AQI 77). See the full air-quality history for Hemet.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | fall brassicas, carrots |
| February | lettuce, peas, spinach, radishes | lettuce, spinach, radishes |
| March | — | lettuce, peas, spinach, radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach |
| May | tomatoes, peppers, beans, squash | summer squash, garlic |
| June | beans, squash | tomatoes, peppers, beans, summer squash |
| July | beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| September | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| October | — | tomatoes, peppers, beans, summer squash, winter squash |
| November | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| December | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
A year in weather
The year in Hemet tops out in August (~80°F) and dips lowest in December (~52°F), with February wettest at 2.8 inches and June driest at 0.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 53° | 2.7″ | 4 |
| February | 54° | 2.8″ | 5 |
| March | 58° | 1.7″ | 4 |
| April | 61° | 0.8″ | 2 |
| May | 67° | 0.5″ | 1 |
| June | 73° | 0.1″ | 0 |
| July | 79° | 0.2″ | 0 |
| August | 80° | 0.1″ | 0 |
| September | 76° | 0.3″ | 1 |
| October | 68° | 0.5″ | 1 |
| November | 59° | 0.8″ | 2 |
| December | 52° | 1.9″ | 3 |
Regional context
Similar climates East Hemet, CA, San Jacinto, CA, Winchester, CA
Drawing on NOAA NCEI 1991-2020 normals, Hemet's January averages 53°F and July 79°F — 26°F apart — while precipitation totals roughly 12.2 inches over some 23 days.
Cool-season fronts carry Hemet's rain: February logs 2.8 inches on 4.5 days, against June's 0.1 inches on 0.1 — winter does the heavy lifting in Hemet. That groups Hemet with places like East Hemet, CA, San Jacinto, CA and Winchester, CA on the same cool-season storm track.
The cool-season window in Hemet starts at January 31, when nights stop freezing — think lettuce, chard, arugula, and mustard greens. In Hemet, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Hemet's frost date. Hemet's window closes around December 10 as Hemet's overnight lows return below freezing. Sheltered Hemet yards can escape a light frost.
Similar climates: East Hemet, CA, San Jacinto, CA, Winchester, CA, Valle Vista, CA, Homeland, CA.
Frequently asked
- When does it freeze in Hemet?
- Frost typically leaves Hemet by January 31 and returns to Hemet near December 10.
- What is the rainy season in Hemet?
- Rainfall in Hemet peaks in February near 2.8 inches, out of about 12 inches annually.
- What is the warmest month in Hemet?
- Hemet peaks in August, when the mean runs near 80°F.
- What is the coldest month in Hemet?
- December is Hemet's coldest month, averaging about 52°F.
- When can I start a vegetable garden in Hemet?
- Around January 31, start frost-hardy crops in Hemet; tomatoes and basil belong a fortnight later.
- How many rainy days does Hemet get?
- Hemet records around 23 days of measurable precipitation annually.
- What hardiness zone is Hemet?
- Because Hemet bottoms near 52°F in December, that winter low sets Hemet's USDA zone — verify by ZIP.
- What is the 10-day forecast for Hemet?
- Hemet'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 Hemet?
- See this week's day-by-day rain chances for Hemet in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Hemet?
- Current conditions for Hemet and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Hemet forecast updated?
- The Hemet forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Hemet?
- Today's sunrise and sunset times for Hemet 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 Hemet?
- The next few days in Hemet's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Hemet sits at 33.7°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Hemet
- 92543
- 92544
- 92545
- 92546