Le Mars, Iowa Weather
Toward the solstice glow. Day 88 of spring. Read this microseason across nine climate regions →
Le Mars weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——79°49°—
- TuesdayJun 16Overcast——78°52°-1°
- WednesdayJun 17Light Showers56%—82°56°+4°
- ThursdayJun 18Heavy Drizzle——66°52°-16°
- FridayJun 19Drizzle13%0.06″79°51°+13°
- SaturdayJun 20Light Drizzle40%—75°60°-4°
- SundayJun 21Overcast40%—77°63°+2°
AQI 35 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (gradual decline). PM2.5 at 6.2 µg/m³ (AQI 34) 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 6.2 µg/m³ (AQI 34) 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:46 AM
- Moonset
- 9:25 PM
- In sign
- ♊︎ Gemini
Toward the solstice glow
Le Mars at a glance
- Today vs. normal: 22°F below the seasonal normal for this latitude
- Last frost: May 3 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Le Mars
- Mon79°49°3%
- Tue78°52°1%
- Wed82°56°56%
- Thu66°52°3%
- Fri79°51°13%
- Sat75°60°40%
- Sun77°63°40%
- Mon75°58°27%
- Tue77°60°19%
- Wed85°66°21%
- Thu90°66°17%
- Fri93°74°36%
- Sat96°76°29%
- Sun95°64°26%
- Mon83°62°36%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Le Mars
SPC has placed Le Mars in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Le Mars
- 51031