Winthrop, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Winthrop weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast18%—85°67°—
- SundayJul 5Heavy Rain20%1.0″83°66°-2°
- MondayJul 6Overcast——84°66°+1°
- TuesdayJul 7Overcast15%—85°67°+1°
- WednesdayJul 8Thunderstorm49%0.05″78°67°-7°
- ThursdayJul 9Overcast49%—77°61°-1°
- FridayJul 10Thunderstorm——82°61°+5°
AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.4 µg/m³ (AQI 52) with a 0.77 fine-to-coarse ratio and 4 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 during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40 now. With UV 5.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29 around 1 PM.
- Present
- AQI 40
- UV peak
- 5.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 9.4 µg/m³ (AQI 52) with a 0.77 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.77
- Wind
- calm
- 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
- 11:19 PM
- Moonset
- 10:18 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Winthrop at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 55396
16-Day Forecast — Winthrop
- Sat85°67°18%
- Sun83°66°20%
- Mon84°66°3%
- Tue85°67°15%
- Wed78°67°49%
- Thu77°61°49%
- Fri82°61°8%
- Sat75°61°9%
- Sun74°55°16%
- Mon77°56°6%
- Tue81°58°6%
- Wed80°63°11%
- Thu82°59°13%
- Fri87°67°14%
- Sat87°68°20%
- Sun90°70°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Winthrop
SPC has placed Winthrop in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Winthrop
- 55396