La Prairie, Illinois Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
La Prairie weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast10%—87°70°—
- MondayJul 6Overcast——87°69°0°
- TuesdayJul 7Overcast——83°64°-4°
- WednesdayJul 8Overcast——88°66°+5°
- ThursdayJul 9Light Showers37%—88°70°0°
- FridayJul 10Drizzle44%0.05″78°70°-10°
- SaturdayJul 11Light Showers26%0.13″85°67°+7°
AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.84 fine-to-coarse ratio and 3 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40 now. With UV 5.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 27 around 1 PM.
- Present
- AQI 40
- UV peak
- 5.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 27
PM × Wind × Precip
PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.84 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.84
- 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
- 11:22 PM
- Moonset
- 11:16 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
La Prairie at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62346
16-Day Forecast — La Prairie
- Sun87°70°10%
- Mon87°69°3%
- Tue83°64°1%
- Wed88°66°2%
- Thu88°70°37%
- Fri78°70°44%
- Sat85°67°26%
- Sun88°70°8%
- Mon93°72°4%
- Tue94°76°2%
- Wed79°64°7%
- Thu79°59°24%
- Fri86°64°26%
- Sat90°70°19%
- Sun89°73°26%
- Mon91°74°16%
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 — La Prairie
SPC includes La Prairie in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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 La Prairie
- 62346