Newton, Illinois Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Newton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Mostly Clear——74°59°—
- TuesdayJun 16Overcast40%—79°56°+5°
- WednesdayJun 17T-storm w/ Hail79%—86°57°+7°
- ThursdayJun 18Heavy Showers79%0.76″75°64°-11°
- FridayJun 19Overcast17%—77°57°+2°
- SaturdayJun 20Overcast——77°56°0°
- SundayJun 21Thunderstorm50%—83°60°+6°
AQI 40 (Good), driven by Ozone. AQI up 15 in the last 6 hours — air quality is degrading. Ozone at AQI 49 — peak already passed at 1 PM under clear 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 49 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 49
- UV peak
- 3.9 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 49
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
- 5:30 AM
- Moonset
- 8:34 PM
- In sign
- ♋︎ Cancer
Sun climbs to its northern throne
Newton at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 10 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Newton
- Mon74°59°0%
- Tue79°56°40%
- Wed86°57°79%
- Thu75°64°79%
- Fri77°57°17%
- Sat77°56°7%
- Sun83°60°50%
- Mon85°66°50%
- Tue77°68°22%
- Wed78°63°12%
- Thu80°66°16%
- Fri80°61°19%
- Sat73°63°39%
- Sun88°68°31%
- Mon79°65°35%
- Tue76°62°36%
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 — Newton
SPC has placed Newton 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 Newton
- 62448