Casco, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Casco weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast14%—78°66°—
- SundayJul 5Overcast——78°60°0°
- MondayJul 6Clear——75°59°-3°
- TuesdayJul 7Overcast——80°57°+5°
- WednesdayJul 8Showers48%0.33″81°63°+1°
- ThursdayJul 9Showers48%0.02″74°60°-7°
- FridayJul 10Overcast25%—76°56°+2°
AQI 27 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 5.4 µg/m³ (AQI 30) with a 0.84 fine-to-coarse ratio and 6 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 5.4 µg/m³ (AQI 30) with a 0.84 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.84
- Wind
- light
- 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
- 10:52 PM
- Moonset
- 9:51 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Casco at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: May 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 54205
16-Day Forecast — Casco
- Sat78°66°14%
- Sun78°60°6%
- Mon75°59°1%
- Tue80°57°5%
- Wed81°63°48%
- Thu74°60°48%
- Fri76°56°25%
- Sat81°61°15%
- Sun65°57°15%
- Mon76°56°14%
- Tue77°60°14%
- Wed79°62°19%
- Thu80°69°23%
- Fri84°67°20%
- Sat79°66°26%
- Sun86°65°26%
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 — Casco
SPC includes Casco 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 Casco
- 54205