Jamestown, Indiana Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Jamestown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain60%1.1″88°72°—
- SundayJul 5Overcast26%—83°70°-5°
- MondayJul 6Heavy Drizzle19%—76°67°-7°
- TuesdayJul 7Clear——78°58°+2°
- WednesdayJul 8Overcast——81°62°+3°
- ThursdayJul 9Thunderstorm51%0.06″82°69°+1°
- FridayJul 10Thunderstorm51%0.01″83°71°+1°
AQI 50 (Good), driven by Ozone. AQI up 13 over the last 6 hours (gradual rise). Ozone at AQI 41. Overcast through the UV peak window (cloud cover ~84%) — afternoon ozone should stay flat.
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 41. Overcast through the UV peak window (cloud cover ~84%) — afternoon ozone should stay flat.
- Present
- AQI 41
- UV peak
- 0.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.2 µg/m³, PM10 to 7.0 µg/m³.
- PM2.5/PM10
- 0.89
- Wind
- breezy
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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
- 11:41 PM
- Moonset
- 10:52 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Jamestown at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46147
16-Day Forecast — Jamestown
- Sat88°72°60%
- Sun83°70°26%
- Mon76°67°19%
- Tue78°58°4%
- Wed81°62°3%
- Thu82°69°51%
- Fri83°71°51%
- Sat75°62°19%
- Sun71°54°10%
- Mon73°55°9%
- Tue74°55°8%
- Wed77°59°18%
- Thu80°60°26%
- Fri81°66°35%
- Sat74°69°46%
- Sun72°66°55%
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 — Jamestown
SPC has placed Jamestown 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 Jamestown
- 46147