Chesterton, Indiana Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chesterton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain81%1.8″83°69°—
- SundayJul 5Overcast12%—78°67°-5°
- MondayJul 6Overcast——77°65°-1°
- TuesdayJul 7Overcast——76°62°-1°
- WednesdayJul 8Clear10%—82°63°+6°
- ThursdayJul 9T-storm w/ Hail28%0.26″82°68°0°
- FridayJul 10Overcast28%—76°65°-6°
AQI 38 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.94 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
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 2.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 8 around 1 PM.
- Present
- AQI 37
- UV peak
- 2.2 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.94 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:45 PM
- Moonset
- 9:52 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Chesterton at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46304
16-Day Forecast — Chesterton
- Sat83°69°81%
- Sun78°67°12%
- Mon77°65°7%
- Tue76°62°3%
- Wed82°63°10%
- Thu82°68°28%
- Fri76°65°28%
- Sat82°63°17%
- Sun70°63°9%
- Mon69°63°13%
- Tue74°63°12%
- Wed81°62°18%
- Thu84°66°26%
- Fri79°69°26%
- Sat83°69°19%
- Sun86°69°35%
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 — Chesterton
SPC has placed Chesterton 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 Chesterton
- 46304