Pittsburg, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Pittsburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast21%—94°71°—
- SundayJul 5Heavy Rain29%0.76″89°72°-5°
- MondayJul 6Overcast29%—88°72°-1°
- TuesdayJul 7Overcast15%—85°69°-3°
- WednesdayJul 8Clear13%—91°66°+6°
- ThursdayJul 9Overcast25%—94°72°+3°
- FridayJul 10Thunderstorm42%0.38″87°72°-7°
AQI 59 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 44 now. With UV 6.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 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 44 now. With UV 6.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 around 1 PM.
- Present
- AQI 44
- UV peak
- 6.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 39
PM × Wind × Precip
PM2.5 at 7.0 µg/m³ (AQI 39) with a 0.93 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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
- 10:47 PM
- Moonset
- 10:04 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Pittsburg at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62974
16-Day Forecast — Pittsburg
- Sat94°71°21%
- Sun89°72°29%
- Mon88°72°29%
- Tue85°69°15%
- Wed91°66°13%
- Thu94°72°25%
- Fri87°72°42%
- Sat90°71°31%
- Sun80°64°15%
- Mon76°58°8%
- Tue79°60°9%
- Wed85°63°5%
- Thu83°65°13%
- Fri81°69°11%
- Sat83°70°19%
- Sun90°73°23%
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 — Pittsburg
SPC has placed Pittsburg 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 Pittsburg
- 62974
- 62959