Winchester, Idaho Weather
Paintbrush crowns the ridges. Day 88 of spring. Read this microseason across nine climate regions →
Winchester weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——77°50°—
- TuesdayJun 16Overcast——77°58°0°
- WednesdayJun 17Clear——69°49°-8°
- ThursdayJun 18Overcast——76°51°+7°
- FridayJun 19Overcast——80°58°+4°
- SaturdayJun 20Overcast——78°59°-2°
- SundayJun 21Partly Cloudy——75°52°-3°
AQI 26 (Good), driven by Ozone. AQI down 10 over the last 6 hours (gradual decline). Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 36. Overcast through the UV peak window (cloud cover ~99%) — afternoon ozone should stay flat.
- Present
- AQI 36
- UV peak
- 7.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 17
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
- 4:53 AM
- Moonset
- 9:09 PM
- In sign
- ♋︎ Cancer
Paintbrush crowns the ridges
Winchester at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: May 23 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Winchester
- Mon77°50°1%
- Tue77°58°2%
- Wed69°49°0%
- Thu76°51°0%
- Fri80°58°1%
- Sat78°59°1%
- Sun75°52°2%
- Mon74°51°1%
- Tue78°54°3%
- Wed72°48°6%
- Thu59°41°4%
- Fri70°43°10%
- Sat79°51°6%
- Sun84°58°6%
- Mon91°62°10%
- Tue87°60°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Warm-season window is open
As of June 15, 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.
ZIP codes in Winchester
- 83555