Marine on St. Croix, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marine on St. Croix weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle23%0.01″86°64°—
- SundayJul 5Overcast14%—85°67°-1°
- MondayJul 6Overcast——85°65°0°
- TuesdayJul 7Overcast14%—88°67°+3°
- WednesdayJul 8Thunderstorm55%0.37″78°66°-10°
- ThursdayJul 9Overcast52%—80°58°+2°
- FridayJul 10Drizzle——85°59°+5°
AQI 55 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.6 µg/m³ (AQI 58) with a 0.76 fine-to-coarse ratio and 3 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 45 now. With UV 5.8 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 45
- UV peak
- 5.8 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 12.6 µg/m³ (AQI 58) with a 0.76 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.76
- 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
- 11:14 PM
- Moonset
- 10:11 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Marine on St. Croix at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: May 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Marine on St. Croix
- Sat86°64°23%
- Sun85°67°14%
- Mon85°65°6%
- Tue88°67°14%
- Wed78°66°55%
- Thu80°58°52%
- Fri85°59°8%
- Sat76°63°11%
- Sun76°57°17%
- Mon79°54°6%
- Tue81°58°7%
- Wed85°63°12%
- Thu87°58°11%
- Fri91°66°16%
- Sat88°67°26%
- Sun93°71°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 — Marine on St. Croix
SPC includes Marine on St. Croix in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Marine on St. Croix
- 55047