Lake Koshkonong, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lake Koshkonong weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast37%—82°69°—
- SundayJul 5Overcast14%—83°66°+1°
- MondayJul 6Partly Cloudy——79°63°-4°
- TuesdayJul 7Overcast——81°57°+2°
- WednesdayJul 8Light Showers26%—81°60°0°
- ThursdayJul 9Light Showers46%0.05″72°66°-9°
- FridayJul 10Partly Cloudy26%—79°57°+7°
AQI 28 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 33. Overcast through the UV peak window (cloud cover ~74%) — 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 33. Overcast through the UV peak window (cloud cover ~74%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 4.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
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
- 10:54 PM
- Moonset
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lake Koshkonong at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Lake Koshkonong
- Sat82°69°37%
- Sun83°66°14%
- Mon79°63°1%
- Tue81°57°2%
- Wed81°60°26%
- Thu72°66°46%
- Fri79°57°26%
- Sat82°62°10%
- Sun68°58°13%
- Mon73°55°8%
- Tue75°59°6%
- Wed79°61°20%
- Thu81°66°14%
- Fri84°68°19%
- Sat84°69°29%
- Sun85°70°29%
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 — Lake Koshkonong
SPC includes Lake Koshkonong in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Lake Koshkonong
- 53538