Lakeside, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Lakeside weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——88°64°—
- MondayJul 6Overcast——89°63°+1°
- TuesdayJul 7Foggy——88°63°-1°
- WednesdayJul 8Clear——90°66°+2°
- ThursdayJul 9Clear——92°69°+2°
- FridayJul 10Overcast——90°67°-2°
- SaturdayJul 11Overcast——87°67°-3°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.70 fine-to-coarse ratio and 3 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 36 now. With UV 8.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 around 1 PM.
- Present
- AQI 36
- UV peak
- 8.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 39
PM × Wind × Precip
PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.70 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.70
- 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
- 11:03 PM
- Moonset
- 11:07 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Lakeside at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: March 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Lakeside
- Sun88°64°0%
- Mon89°63°1%
- Tue88°63°0%
- Wed90°66°0%
- Thu92°69°0%
- Fri90°67°0%
- Sat87°67°1%
- Sun88°71°4%
- Mon88°74°16%
- Tue87°72°17%
- Wed94°75°7%
- Thu94°78°13%
- Fri104°82°19%
- Sat106°85°15%
- Sun94°81°14%
- Mon95°77°13%
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.
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 Lakeside tops out in August (~74°F) and dips lowest in January (~55°F), with February wettest at 2.1 inches and July driest at 0.1 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 55° | 2.0″ | 10 |
| February | 56° | 2.1″ | 10 |
| March | 58° | 1.9″ | 12 |
| April | 61° | 1.0″ | 10 |
| May | 64° | 0.3″ | 10 |
| June | 68° | 0.1″ | 8 |
| July | 73° | 0.1″ | 3 |
| August | 74° | 0.1″ | 4 |
| September | 73° | 0.1″ | 5 |
| October | 68° | 0.3″ | 6 |
| November | 61° | 1.0″ | 7 |
| December | 55° | 2.0″ | 9 |
Regional context
Lakeside swings from 55°F in January to 73°F in July (18°F) per NOAA NCEI 1991-2020 normals; precipitation in Lakeside runs about 11 inches on roughly 94 measurable days.
Lakeside's moisture rides winter storm tracks: February brings 2.1 inches over 9.6 wet days, while July sees only 0.1 inches across 3.0 days in the dry warm season. That cool-season-wet pattern aligns Lakeside with places like Winter Gardens, CA, Eucalyptus Hills, CA and Bostonia, CA.
With a coldest-month mean of 55°F, Lakeside stays mostly frost-free and grows year-round. The August peak near 74°F is Lakeside's real limit, pushing cool-season vegetables to spring and fall. Across Lakeside, elevation and tree cover drive a 4-7°F spread in Lakeside's overnight lows.
Similar climates: Winter Gardens, CA, Eucalyptus Hills, CA, Bostonia, CA, Granite Hills, CA, Harbison Canyon, CA.
Frequently asked
- When does it freeze in Lakeside?
- Lakeside's last spring frost lands near mid-March, and in Lakeside the first fall frost follows around mid-December.
- What is the rainy season in Lakeside?
- Rainfall in Lakeside peaks in February near 2.1 inches, out of about 11 inches annually.
- What is the warmest month in Lakeside?
- August is Lakeside's warmest month, averaging about 74°F.
- What is the coldest month in Lakeside?
- Lakeside bottoms out in January, with a mean near 55°F.
- When can I start a vegetable garden in Lakeside?
- Lakeside's last frost (mid-March) cues hardy greens; in Lakeside, hold heat-lovers two weeks past.
- How many rainy days does Lakeside get?
- Lakeside records around 94 days of measurable precipitation annually.
- What hardiness zone is Lakeside?
- Lakeside's USDA zone comes from its January mean (55°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Lakeside?
- Lakeside'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 Lakeside?
- See this week's day-by-day rain chances for Lakeside in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Lakeside?
- Current conditions for Lakeside and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Lakeside forecast updated?
- The Lakeside forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Lakeside?
- Today's sunrise and sunset times for Lakeside 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 Lakeside?
- The next few days in Lakeside's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Lakeside, California occupies a hot-summer Mediterranean zone, with January means near 55°F and July around 73°F — a 18°F swing.
Across the year, Lakeside collects about 11 inches of precipitation over roughly 94 days with measurable rain or snow.
The 18°F gap between Lakeside's summer and winter, at 32.9°N, shapes Lakeside's frost calendar.
ZIP codes in Lakeside
- 92021
- 92040