St. Joseph, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Joseph weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Showers47%0.18″86°64°—
- SundayJul 5Overcast17%—84°64°-2°
- MondayJul 6Overcast26%—84°65°0°
- TuesdayJul 7T-storm w/ Hail34%1.5″85°66°+1°
- WednesdayJul 8Heavy Showers60%2.8″77°65°-8°
- ThursdayJul 9Light Drizzle42%—78°59°+1°
- FridayJul 10Drizzle——69°59°-9°
AQI 52 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.0 µg/m³ (AQI 55) with a 0.79 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
Ozone × UV × Sky
Ozone at AQI 50 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 50
- UV peak
- 2.9 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 50
PM × Wind × Precip
PM2.5 at 11.0 µg/m³ (AQI 55) with a 0.79 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.79
- 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
- 11:21 PM
- Moonset
- 10:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Joseph at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: May 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Joseph
- Sat86°64°47%
- Sun84°64°17%
- Mon84°65°26%
- Tue85°66°34%
- Wed77°65°60%
- Thu78°59°42%
- Fri69°59°8%
- Sat76°57°14%
- Sun78°56°15%
- Mon80°59°9%
- Tue83°62°5%
- Wed82°65°10%
- Thu80°66°10%
- Fri72°59°20%
- Sat68°60°11%
- Sun80°58°13%
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. Joseph
SPC has placed St. Joseph in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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. Joseph
- 56374