Idaho City, Idaho Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Idaho City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear——91°54°—
- SundayJul 5Overcast——94°65°+3°
- MondayJul 6Overcast——91°68°-3°
- TuesdayJul 7Overcast——93°64°+2°
- WednesdayJul 8Overcast——88°66°-5°
- ThursdayJul 9Clear——85°57°-3°
- FridayJul 10Clear——94°60°+9°
AQI 35 (Good), driven by Ozone. AQI up 20 in the last 6 hours — air quality is degrading. Ozone at AQI 55 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 55 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 55
- UV peak
- 8.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 55
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
- 11:46 PM
- Moonset
- 10:50 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Idaho City at a glance
- Today vs. normal: 23°F above the seasonal normal for this latitude
- Last frost: May 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 83631
16-Day Forecast — Idaho City
- Sat91°54°0%
- Sun94°65°1%
- Mon91°68°6%
- Tue93°64°6%
- Wed88°66°1%
- Thu85°57°0%
- Fri94°60°0%
- Sat103°67°0%
- Sun105°74°1%
- Mon105°73°3%
- Tue106°80°7%
- Wed102°77°4%
- Thu104°75°3%
- Fri107°76°3%
- Sat106°77°3%
- Sun110°78°10%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Idaho City
SPC includes Idaho City in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- 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.
ZIP codes in Idaho City
- 83631