Jamestown, New York Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Jamestown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast19%—85°69°—
- SundayJul 5Overcast36%—85°66°0°
- MondayJul 6Showers79%0.09″73°65°-12°
- TuesdayJul 7Thunderstorm44%0.23″73°64°0°
- WednesdayJul 8Overcast——74°62°+1°
- ThursdayJul 9Light Showers35%0.18″72°59°-2°
- FridayJul 10Light Showers56%0.18″74°66°+2°
AQI 45 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 50 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
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 50 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 50
- UV peak
- 3.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 50
PM × Wind × Precip
PM2.5 at 7.7 µg/m³, PM10 at 8.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- 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
- 11:14 PM
- Moonset
- 10:18 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Jamestown at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 14701
16-Day Forecast — Jamestown
- Sat86°69°19%
- Sun85°66°36%
- Mon73°65°79%
- Tue73°64°44%
- Wed74°62°6%
- Thu72°59°35%
- Fri74°66°56%
- Sat73°57°24%
- Sun69°51°19%
- Mon70°51°25%
- Tue70°50°22%
- Wed75°52°52%
- Thu75°59°40%
- Fri80°59°43%
- Sat77°65°46%
- Sun68°62°48%
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 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 Jamestown
- 14701
- 14702