Iron Junction, Minnesota Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Iron Junction weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——81°48°—
- ThursdayJun 4Light Rain41%0.16″76°60°-5°
- FridayJun 5Drizzle14%—77°58°+1°
- SaturdayJun 6Clear——81°52°+4°
- SundayJun 7Clear——79°52°-2°
- MondayJun 8Heavy Drizzle46%0.13″72°57°-7°
- TuesdayJun 9Foggy46%—74°60°+2°
Ozone at AQI 500. AQI up 28 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 500
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 60
PM × Wind × Precip
PM2.5 at 5.9 µg/m³ (AQI 33) with a 0.89 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:07 AM
- Moonset
- 1:46 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Iron Junction at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: May 31 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Iron Junction
SPC has placed Iron Junction in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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.