Winchester, Wisconsin Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Winchester weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——81°62°—
- MondayJul 6Clear——84°60°+3°
- TuesdayJul 7Overcast——81°57°-3°
- WednesdayJul 8Thunderstorm52%0.10″75°63°-6°
- ThursdayJul 9Overcast52%—76°54°+1°
- FridayJul 10Light Drizzle12%—77°59°+1°
- SaturdayJul 11Overcast——75°55°-2°
AQI 31 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.98 fine-to-coarse ratio and 4 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
PM × Wind × Precip
PM2.5 at 8.6 µg/m³ (AQI 48) with a 0.98 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.98
- 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
- 11:16 PM
- Moonset
- 11:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Winchester at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: May 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Winchester
- Sun81°63°4%
- Mon84°60°0%
- Tue81°57°3%
- Wed75°63°52%
- Thu76°54°52%
- Fri77°59°12%
- Sat75°55°7%
- Sun76°54°6%
- Mon78°57°9%
- Tue82°65°11%
- Wed79°61°25%
- Thu73°60°26%
- Fri82°67°28%
- Sat85°65°27%
- Sun79°58°29%
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.
SPC Convective Outlook
Storm Prediction Center — Winchester
SPC includes Winchester in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
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 Winchester
- 54947