Frost, Minnesota Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Frost weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle37%0.02″77°63°—
- FridayJun 5Foggy15%—83°62°+6°
- SaturdayJun 6Foggy——85°61°+2°
- SundayJun 7Heavy Drizzle48%0.03″84°68°-1°
- MondayJun 8Drizzle55%—83°69°-1°
- TuesdayJun 9Thunderstorm32%0.02″83°69°0°
- WednesdayJun 10Thunderstorm12%—95°74°+12°
AQI 37 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (steady decline since this morning). PM2.5 at 9.3 µg/m³ (AQI 51) with a 0.97 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
PM × Wind × Precip
PM2.5 at 9.3 µg/m³ (AQI 51) with a 0.97 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:27 AM
- Moonset
- 3:14 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Frost at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: May 8 (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 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 — Frost
SPC has placed Frost in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
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.