Kuna, Idaho Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Kuna weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——79°57°—
- FridayJun 5Overcast——88°53°+9°
- SaturdayJun 6Overcast——72°51°-16°
- SundayJun 7Overcast——68°44°-4°
- MondayJun 8Heavy Drizzle—0.09″75°53°+7°
- TuesdayJun 9Drizzle42%0.13″59°54°-16°
- WednesdayJun 10Overcast26%—75°52°+16°
PM2.5 at 10.0 µg/m³, PM10 at 13.5 µg/m³ — typical background levels with no transport signature. AQI flat over the last 6 hours (within ±4 points).
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 43 now. With UV 6.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 by mid-afternoon.
- Present
- AQI 43
- UV peak
- 6.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 38
PM × Wind × Precip
PM2.5 at 10.0 µg/m³, PM10 at 13.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.74
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:29 AM
- Moonset
- 3:41 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Kuna at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 7 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 4, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Kuna's warmest month is July (~75°F mean) and its coldest is January (~31°F). Rainfall peaks in December (1.4 inches) and bottoms out in August (0.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 1.4″ | 5 |
| February | 37° | 1.0″ | 4 |
| March | 45° | 1.3″ | 4 |
| April | 50° | 1.1″ | 4 |
| May | 59° | 1.4″ | 4 |
| June | 67° | 0.7″ | 2 |
| July | 75° | 0.3″ | 1 |
| August | 74° | 0.2″ | 1 |
| September | 64° | 0.4″ | 1 |
| October | 52° | 0.8″ | 3 |
| November | 40° | 1.2″ | 4 |
| December | 31° | 1.4″ | 5 |
Regional context
Kuna sits within a warm-summer Mediterranean climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Boise, ID, Nampa, ID, Coeur d'Alene, ID, Meridian, ID, Caldwell, ID.
Frequently asked
- When does it freeze in Kuna?
- Kuna's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Kuna?
- December is the wettest month with about 1.4 inches of rain on average; the city receives roughly 11 inches annually.
- What is the warmest month in Kuna?
- July is typically warmest, averaging about 75°F.
- What is the coldest month in Kuna?
- January is typically coldest, averaging about 31°F.
- When can I start a vegetable garden in Kuna?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-May); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Kuna get?
- Kuna averages about 37 rainy days per year.
- What hardiness zone is Kuna?
- Kuna's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Kuna, Idaho sits in a warm-summer Mediterranean climate zone. January means hover near 31°F while July averages 75°F — a 44°F seasonal swing.
Across the year, Kuna receives about 11 inches of precipitation spread over roughly 37 rainy days.
The rhythm of the year is set by latitude (43.5°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.