Watson, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Watson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast23%—91°72°—
- SundayJul 5Rain23%0.28″81°72°-10°
- MondayJul 6Light Drizzle22%—85°68°+4°
- TuesdayJul 7Overcast11%—84°65°-1°
- WednesdayJul 8Clear17%—86°65°+2°
- ThursdayJul 9Thunderstorm29%—87°72°+1°
- FridayJul 10Light Showers33%0.25″83°69°-4°
AQI 31 (Good), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline). PM2.5 at 7.3 µg/m³, PM10 at 7.9 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 34 now. With UV 2.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 12 around 1 PM.
- Present
- AQI 34
- UV peak
- 2.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 7.3 µg/m³, PM10 at 7.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 10:48 PM
- Moonset
- 10:02 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Watson at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62473
16-Day Forecast — Watson
- Sat92°72°23%
- Sun81°72°23%
- Mon85°68°22%
- Tue84°65°11%
- Wed86°65°17%
- Thu87°72°29%
- Fri83°69°33%
- Sat85°71°27%
- Sun75°60°10%
- Mon70°58°6%
- Tue77°60°7%
- Wed81°63°13%
- Thu81°65°20%
- Fri79°71°23%
- Sat86°69°29%
- Sun85°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 — Watson
SPC has placed Watson 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 Watson
- 62473