St. Croix Falls, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Croix Falls weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain23%0.13″84°63°—
- SundayJul 5Overcast17%—84°66°0°
- MondayJul 6Overcast——84°66°0°
- TuesdayJul 7Thunderstorm27%1.3″87°65°+3°
- WednesdayJul 8Showers60%0.74″70°60°-17°
- ThursdayJul 9Overcast54%—78°57°+8°
- FridayJul 10Light Drizzle—0.01″72°56°-6°
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.4 µg/m³ (AQI 53) with a 0.75 fine-to-coarse ratio and 5 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
Ozone × UV × Sky
Ozone at AQI 46 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 2.8 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 46
PM × Wind × Precip
PM2.5 at 10.4 µg/m³ (AQI 53) with a 0.75 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.75
- 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
- 11:14 PM
- Moonset
- 10:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Croix Falls at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Croix Falls
- Sat83°63°23%
- Sun84°66°17%
- Mon84°66°8%
- Tue87°65°27%
- Wed70°60°60%
- Thu78°57°54%
- Fri72°56°9%
- Sat75°53°11%
- Sun77°55°17%
- Mon79°56°6%
- Tue83°60°8%
- Wed83°64°14%
- Thu84°65°16%
- Fri74°61°26%
- Sat67°57°18%
- Sun79°56°14%
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 — St. Croix Falls
SPC includes St. Croix Falls in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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 St. Croix Falls
- 54024