Byron, Minnesota Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Byron weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast29%—83°64°—
- MondayJul 6Mostly Clear——84°65°+1°
- TuesdayJul 7Overcast12%—83°65°-1°
- WednesdayJul 8T-storm w/ Hail73%—83°67°0°
- ThursdayJul 9Light Drizzle73%—77°63°-6°
- FridayJul 10Overcast——76°62°-1°
- SaturdayJul 11Overcast——81°59°+5°
AQI 40 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 8.4 µg/m³ (AQI 47) with a 0.87 fine-to-coarse ratio and 5 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 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 45
- UV peak
- 2.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 45
PM × Wind × Precip
PM2.5 at 8.4 µg/m³ (AQI 47) with a 0.87 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
- 11:32 PM
- Moonset
- 11:21 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Byron at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: May 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 55920
16-Day Forecast — Byron
- Sun83°64°29%
- Mon84°65°2%
- Tue83°65°12%
- Wed83°67°73%
- Thu77°63°73%
- Fri76°62°6%
- Sat81°59°6%
- Sun88°65°5%
- Mon76°60°7%
- Tue75°57°9%
- Wed79°60°12%
- Thu81°62°20%
- Fri88°64°24%
- Sat91°68°20%
- Sun89°71°20%
- Mon91°72°29%
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 — Byron
SPC has placed Byron in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
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 Byron
- 55920