St. Joseph, Minnesota Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
St. Joseph weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle45%—86°64°—
- SundayJul 5Overcast13%—86°60°0°
- MondayJul 6Overcast34%—85°66°-1°
- TuesdayJul 7T-storm w/ Hail47%0.41″83°66°-2°
- WednesdayJul 8Heavy Showers70%0.93″76°61°-7°
- ThursdayJul 9Overcast36%—75°57°-1°
- FridayJul 10Light Drizzle——77°59°+2°
AQI 57 (Moderate), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 9.7 µg/m³, PM10 at 11.2 µg/m³ — typical background levels with no transport signature.
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 40 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 40
- UV peak
- 0.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 9.7 µg/m³, PM10 at 11.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.87
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:40 PM
- Moonset
- 11:28 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Joseph at a glance
- Today vs. normal: 68°F — typical for the season
- 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°45%
- Sun86°62°13%
- Mon85°66°34%
- Tue83°66°47%
- Wed76°61°70%
- Thu75°57°36%
- Fri77°59°9%
- Sat76°53°10%
- Sun75°55°10%
- Mon85°66°7%
- Tue83°59°6%
- Wed83°64°8%
- Thu79°69°10%
- Fri83°65°20%
- Sat85°58°11%
- Sun75°60°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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