Grand Marais, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Grand Marais weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast11%—71°59°—
- SundayJul 5Overcast——74°61°+3°
- MondayJul 6Overcast——65°55°-9°
- TuesdayJul 7T-storm w/ Hail22%—72°58°+7°
- WednesdayJul 8Showers49%0.30″69°57°-3°
- ThursdayJul 9Overcast35%—61°56°-8°
- FridayJul 10Light Drizzle—0.04″65°54°+4°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.1 µg/m³, PM10 at 10.2 µg/m³ — typical background levels with no transport signature.
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 32 now. With UV 5.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 32
- UV peak
- 5.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 10.1 µg/m³, PM10 at 10.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.99
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:08 PM
- Moonset
- 9:58 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Grand Marais at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: June 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 55604
16-Day Forecast — Grand Marais
- Sat71°59°11%
- Sun74°61°3%
- Mon65°55°6%
- Tue72°58°22%
- Wed69°57°49%
- Thu61°56°35%
- Fri65°54°8%
- Sat67°55°13%
- Sun67°56°15%
- Mon66°56°10%
- Tue69°55°11%
- Wed78°57°13%
- Thu69°59°19%
- Fri75°61°24%
- Sat69°58°26%
- Sun68°59°21%
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 — Grand Marais
SPC includes Grand Marais in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Grand Marais
- 55604