Dewey, Illinois Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Dewey weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——73°54°—
- TuesdayJun 16Overcast82%—75°55°+2°
- WednesdayJun 17Showers95%0.15″80°55°+5°
- ThursdayJun 18Light Drizzle95%—73°58°-7°
- FridayJun 19Overcast——68°54°-5°
- SaturdayJun 20Overcast19%—74°55°+6°
- SundayJun 21Light Showers42%0.60″66°58°-8°
AQI 25 (Good), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:25 AM
- Moonset
- 8:41 PM
- In sign
- ♊︎ Gemini
Sun climbs to its northern throne
Dewey at a glance
- Today vs. normal: 19°F below the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Dewey
- Mon73°54°0%
- Tue75°55°82%
- Wed80°55°95%
- Thu73°58°95%
- Fri68°54°3%
- Sat74°55°19%
- Sun66°58°42%
- Mon72°52°42%
- Tue73°57°16%
- Wed79°58°9%
- Thu83°67°12%
- Fri87°70°39%
- Sat89°71°29%
- Sun90°74°32%
- Mon88°74°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Dewey
SPC has placed Dewey in the Enhanced Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3ENHEnhanced Risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Dewey
- 61840