Watertown, Minnesota Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Watertown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Rain66%0.13″83°64°—
- FridayJun 5Showers25%0.30″77°64°-6°
- SaturdayJun 6Clear——82°59°+5°
- SundayJun 7Drizzle35%—85°63°+3°
- MondayJun 8Showers60%0.30″76°66°-9°
- TuesdayJun 9Light Drizzle47%—80°67°+4°
- WednesdayJun 10Thunderstorm16%—92°66°+12°
PM2.5 at 10.0 µg/m³, PM10 at 11.9 µg/m³ — typical background levels with no transport signature. AQI flat over the last 6 hours (within ±3 points).
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 49 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 49
- UV peak
- 1.2 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 49
PM × Wind × Precip
PM2.5 at 10.0 µg/m³, PM10 at 11.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.84
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:02 AM
- Moonset
- 2:02 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Watertown at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: May 16 (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 — Watertown
SPC has placed Watertown in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- DAY 3NONENo severe 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.