Johnson, Minnesota Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Johnson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle55%0.01″85°63°—
- FridayJun 5Heavy Rain43%1.4″76°64°-9°
- SaturdayJun 6Partly Cloudy11%—83°60°+7°
- SundayJun 7Light Drizzle22%—85°65°+2°
- MondayJun 8Overcast47%—81°68°-4°
- TuesdayJun 9Thunderstorm18%—92°66°+11°
- WednesdayJun 10Thunderstorm20%—92°74°0°
Ozone at AQI 41 now. AQI flat over the last 6 hours (within ±3 points). With UV 4.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 16 by mid-afternoon.
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 41 now. With UV 4.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 16 by mid-afternoon.
- Present
- AQI 41
- UV peak
- 4.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 16
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
- 5:15 AM
- Moonset
- 2:09 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Johnson at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: May 19 (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 — Johnson
SPC has placed Johnson in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.