Brownstown, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Brownstown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast24%—93°73°—
- SundayJul 5Light Showers24%0.11″85°73°-8°
- MondayJul 6Light Drizzle15%—86°70°+1°
- TuesdayJul 7Overcast——84°65°-2°
- WednesdayJul 8Clear17%—86°66°+2°
- ThursdayJul 9Light Drizzle28%—87°72°+1°
- FridayJul 10Light Showers28%0.17″84°70°-3°
AQI 42 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.3 µg/m³, PM10 at 6.6 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35 now. With UV 2.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 13 around 1 PM.
- Present
- AQI 35
- UV peak
- 2.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 6.3 µg/m³, PM10 at 6.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.95
- 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
- 10:49 PM
- Moonset
- 10:03 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Brownstown at a glance
- Today vs. normal: 11°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: 62418
16-Day Forecast — Brownstown
- Sat93°73°24%
- Sun85°73°24%
- Mon86°70°15%
- Tue84°65°9%
- Wed86°66°17%
- Thu87°72°28%
- Fri84°70°28%
- Sat87°71°26%
- Sun75°60°12%
- Mon72°58°5%
- Tue78°60°6%
- Wed81°63°13%
- Thu81°65°19%
- Fri80°71°19%
- Sat87°69°26%
- Sun87°73°19%
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 — Brownstown
SPC has placed Brownstown 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 Brownstown
- 62418