Griffith, Indiana Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Griffith weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Showers77%2.4″82°68°—
- SundayJul 5Foggy17%—74°65°-8°
- MondayJul 6Overcast——80°67°+6°
- TuesdayJul 7Overcast——82°66°+2°
- WednesdayJul 8Partly Cloudy13%—86°65°+4°
- ThursdayJul 9Drizzle29%0.12″81°68°-5°
- FridayJul 10Overcast29%—79°66°-2°
AQI 39 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 5.9 µg/m³ (AQI 33) with a 0.97 fine-to-coarse ratio and 4 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
Ozone × UV × Sky
Ozone at AQI 33. Overcast through the UV peak window (cloud cover ~86%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 0.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 5.9 µg/m³ (AQI 33) with a 0.97 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.97
- 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
- 10:47 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Griffith at a glance
- Today vs. normal: 70°F — typical for the season
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46319
16-Day Forecast — Griffith
- Sat82°68°77%
- Sun74°65°17%
- Mon80°67°5%
- Tue82°66°3%
- Wed86°65°13%
- Thu81°68°29%
- Fri79°66°29%
- Sat85°64°17%
- Sun72°62°9%
- Mon73°62°10%
- Tue78°65°11%
- Wed85°64°13%
- Thu88°68°29%
- Fri85°72°27%
- Sat89°71°11%
- Sun90°72°29%
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 — Griffith
SPC has placed Griffith in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 Griffith
- 46319