Letts, Indiana Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Letts weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast16%—87°70°—
- SundayJul 5Drizzle20%0.05″85°71°-2°
- MondayJul 6Thunderstorm38%—76°68°-9°
- TuesdayJul 7Overcast——79°62°+3°
- WednesdayJul 8Overcast——82°62°+3°
- ThursdayJul 9Thunderstorm35%0.04″83°66°+1°
- FridayJul 10Thunderstorm53%0.04″85°70°+2°
AQI 37 (Good), driven by Ozone. Ozone at AQI 73 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 55 around 1 PM.
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 73 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 55 around 1 PM.
- Present
- AQI 73
- UV peak
- 5.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 55
PM × Wind × Precip
PM2.5 at 12.9 µg/m³, PM10 at 15.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.82
- 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
- 11:36 PM
- Moonset
- 10:48 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Letts at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Letts
- Sat87°70°16%
- Sun85°71°20%
- Mon76°68°38%
- Tue79°62°7%
- Wed82°62°8%
- Thu83°66°35%
- Fri85°70°53%
- Sat77°65°41%
- Sun72°58°18%
- Mon74°55°13%
- Tue74°57°15%
- Wed79°57°14%
- Thu83°60°19%
- Fri81°66°26%
- Sat78°68°26%
- Sun74°67°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 — Letts
SPC has placed Letts 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 Letts
- 47240