St. Martin, Minnesota Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
St. Martin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain40%0.81″83°64°—
- SundayJul 5Overcast12%—85°62°+2°
- MondayJul 6Overcast43%—85°67°0°
- TuesdayJul 7T-storm w/ Hail49%0.35″80°66°-5°
- WednesdayJul 8Heavy Showers70%0.51″76°61°-4°
- ThursdayJul 9Overcast35%—75°57°-1°
- FridayJul 10Light Drizzle11%—77°59°+2°
AQI 53 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.4 µg/m³, PM10 at 10.8 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 43 now. With UV 0.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 43
- UV peak
- 0.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 9.4 µg/m³, PM10 at 10.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.87
- Wind
- breezy
- Recent rain
- 1h 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
- 11:41 PM
- Moonset
- 11:30 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Martin at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: May 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Martin
- Sat83°64°40%
- Sun85°61°12%
- Mon85°67°43%
- Tue80°66°49%
- Wed76°61°70%
- Thu75°57°35%
- Fri77°59°11%
- Sat76°53°11%
- Sun75°54°10%
- Mon86°66°8%
- Tue81°59°8%
- Wed81°63°8%
- Thu81°69°10%
- Fri82°64°20%
- Sat83°58°11%
- Sun75°58°13%
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 — St. Martin
SPC has placed St. Martin in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- 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 St. Martin
- 56376
- 56362