Arthur, Indiana Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
Arthur weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Mostly Clear——79°55°—
- TuesdayJun 16Overcast28%—83°60°+4°
- WednesdayJun 17Thunderstorm48%—89°61°+6°
- ThursdayJun 18T-storm w/ Hail81%0.06″80°64°-9°
- FridayJun 19Light Drizzle31%—78°59°-2°
- SaturdayJun 20Overcast——80°57°+2°
- SundayJun 21T-storm w/ Hail47%0.04″78°62°-2°
AQI 41 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.0 µg/m³ (AQI 56) with a 1.00 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.
What's driving it
PM × Wind × Precip
PM2.5 at 12.0 µg/m³ (AQI 56) with a 1.00 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 1.00
- 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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 7:39 AM
- Moonset
- 10:29 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Arthur at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: April 6 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Arthur
- Mon79°55°0%
- Tue83°60°28%
- Wed89°61°48%
- Thu80°64°81%
- Fri78°59°31%
- Sat80°57°3%
- Sun78°62°47%
- Mon72°60°60%
- Tue76°55°27%
- Wed79°61°17%
- Thu86°62°19%
- Fri87°71°40%
- Sat81°68°42%
- Sun87°67°42%
- Mon83°70°46%
- Tue81°68°56%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Arthur
SPC has placed Arthur in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3SLGTSlight Risk
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 Arthur
- 47598