West Lafayette, Ohio Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
West Lafayette weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast35%—92°70°—
- SundayJul 5Showers37%0.35″87°69°-5°
- MondayJul 6Thunderstorm71%—85°69°-2°
- TuesdayJul 7Thunderstorm21%—74°64°-11°
- WednesdayJul 8Overcast——86°62°+12°
- ThursdayJul 9Light Drizzle28%—84°63°-2°
- FridayJul 10Thunderstorm64%0.24″77°68°-7°
AQI 72 (Moderate), driven by Ozone. AQI up 38 in the last 6 hours — air quality is degrading. Ozone at AQI 90 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 90 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 90
- UV peak
- 4.2 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 90
PM × Wind × Precip
PM2.5 at 8.9 µg/m³, PM10 at 10.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.86
- 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
- 11:21 PM
- Moonset
- 10:31 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
West Lafayette at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43845
16-Day Forecast — West Lafayette
- Sat93°70°35%
- Sun87°70°37%
- Mon85°69°71%
- Tue74°64°21%
- Wed86°62°6%
- Thu84°63°28%
- Fri77°68°64%
- Sat82°63°33%
- Sun76°56°17%
- Mon74°54°16%
- Tue79°54°14%
- Wed83°55°29%
- Thu85°59°32%
- Fri84°63°33%
- Sat83°68°35%
- Sun75°67°61%
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 — West Lafayette
SPC has placed West Lafayette in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 West Lafayette
- 43845