Gilbert, Arizona Weather
The monsoon exhales. Day 43 of summer. Read this microseason across nine climate regions →
Gilbert weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Overcast——113°91°—
- MondayAug 3Overcast——112°87°-1°
- TuesdayAug 4Drizzle——109°87°-3°
- WednesdayAug 5Light Showers11%—108°89°-1°
- ThursdayAug 6Light Showers20%—107°90°-1°
- FridayAug 7Overcast14%—104°85°-3°
- SaturdayAug 8Drizzle19%—108°93°+4°
AQI 65 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM10 at 48.4 µg/m³ (AQI 45) with a 0.25 fine-to-coarse ratio under 11 mph wind — coarse road or agricultural dust being kicked up.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM10 at 48.4 µg/m³ (AQI 45) with a 0.25 fine-to-coarse ratio under 11 mph wind — coarse road or agricultural dust being kicked up.
- PM2.5/PM10
- 0.25
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- blown dust
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).
Red sky at night, sailor's delight.
- Moonrise
- 9:10 PM
- Moonset
- 9:35 AM
- In sign
- ♓︎ Pisces
The monsoon exhales
Gilbert at a glance
- Today vs. normal: 30°F above the seasonal normal for this latitude
- Last frost: March 7 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 85233, 85234, 85295, 85296, 85297, 85298
16-Day Forecast — Gilbert
- Sun113°91°5%
- Mon112°87°8%
- Tue109°87°8%
- Wed108°89°11%
- Thu107°90°20%
- Fri104°85°14%
- Sat108°93°19%
- Sun104°87°20%
- Mon104°86°24%
- Tue101°89°14%
- Wed101°88°14%
- Thu105°90°25%
- Fri105°88°42%
- Sat107°90°47%
- Sun110°94°27%
- Mon110°96°29%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Gilbert
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.
SPC Convective Outlook
Storm Prediction Center — Gilbert
SPC includes Gilbert in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Sun & seasons in Gilbert
Gilbert sits in Maricopa County, where the year’s longest day runs 14h 22m of daylight and its shortest just 9h 57m — a swing of +4h 25m between the June and December solstices.
Phoenix, the state’s largest city, lies about 27 miles to the NW. The nearest town Gilbert tracks is Chandler, roughly 6 miles to the WSW.
Air quality in Gilbert’s county has trended cleaner since 2020; its cleanest year on record was 2023 (median AQI 72). See the full air-quality history for Gilbert.
Microseason · August 1–5
The monsoon exhales
Afternoon storms lose intensity and frequency. Days remain brutally hot but humidity begins its slow descent. Arroyos still flow but more intermittently.
Day 214 of 365 · Wedge 43 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
Gilbert peaks at about 94°F in July and bottoms near 52°F in December; August brings the heaviest rain (1.7 inches) and June the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 53° | 0.8″ | 6 |
| February | 57° | 1.0″ | 6 |
| March | 63° | 1.0″ | 5 |
| April | 72° | 0.3″ | 3 |
| May | 82° | 0.0″ | 1 |
| June | 91° | 0.0″ | 1 |
| July | 94° | 0.7″ | 9 |
| August | 91° | 1.7″ | 13 |
| September | 88° | 0.8″ | 7 |
| October | 76° | 0.3″ | 3 |
| November | 62° | 0.8″ | 4 |
| December | 52° | 1.4″ | 6 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Gilbert sees 53°F Januarys and 94°F Julys, a 41°F range, plus around 9 inches of precipitation across 62 days.
Gilbert's moisture rides winter storm tracks: August brings 1.7 inches over 13.3 wet days, while June sees only 0.0 inches across 0.6 days in the dry warm season. That cool-season-wet pattern aligns Gilbert with places like Chandler, AZ, Mesa, AZ and Queen Creek, AZ.
Freezes are uncommon in Gilbert, where the coldest month averages 52°F; cool-season crops grow fall through spring. Summer heat in July (about 94°F) is the binding constraint, not cold. Within Gilbert, low or inland lots lose 3-5°F overnight versus Gilbert's coastal ground.
Similar climates: Chandler, AZ, Mesa, AZ, Queen Creek, AZ, Sun Lakes, AZ, Goodyear Village, AZ.
Naturalist notes
Late May brings the bloom of palo verde trees, their bright yellow flowers marking Arizona's state tree in full display.
Cactus wrens begin their second nesting cycle in May, building fresh dome-shaped nests in cholla and other desert plants.
Frequently asked
- When does it freeze in Gilbert?
- Frost typically leaves Gilbert by mid-March and returns to Gilbert near mid-December.
- What is the rainy season in Gilbert?
- Gilbert sees its heaviest rain in August (around 1.7 inches), part of roughly 9 inches a year.
- What is the warmest month in Gilbert?
- July is Gilbert's warmest month, averaging about 94°F.
- What is the coldest month in Gilbert?
- Gilbert bottoms out in December, with a mean near 52°F.
- When can I start a vegetable garden in Gilbert?
- Gilbert's last frost (mid-March) cues hardy greens; in Gilbert, hold heat-lovers two weeks past.
- How many rainy days does Gilbert get?
- Expect roughly 62 wet days a year in Gilbert.
- What hardiness zone is Gilbert?
- Gilbert's USDA zone comes from its December mean (52°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Gilbert?
- Gilbert'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 Gilbert?
- See this week's day-by-day rain chances for Gilbert in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Gilbert?
- Current conditions for Gilbert and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Gilbert forecast updated?
- The Gilbert forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Gilbert?
- Today's sunrise and sunset times for Gilbert 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 Gilbert?
- The next few days in Gilbert's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Gilbert, Arizona occupies a hot desert zone, with January means near 53°F and July around 94°F — a 41°F swing.
Gilbert sees close to 9 inches of precipitation annually, falling across some 62 wet days.
The 41°F gap between Gilbert's summer and winter, at 33.3°N, shapes Gilbert's frost calendar.
ZIP codes in Gilbert
- 85233
- 85234
- 85236
- 85297
- 85296
- 85295
- 85298
- 85244
- 85299