Galesburg, Illinois Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
Galesburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Rain33%0.11″74°58°—
- WednesdayJun 17T-storm w/ Hail97%—83°58°+9°
- ThursdayJun 18Overcast——70°58°-13°
- FridayJun 19Mostly Clear——71°54°+1°
- SaturdayJun 20Heavy Drizzle11%0.01″73°56°+2°
- SundayJun 21Drizzle58%0.12″67°57°-6°
- MondayJun 22Overcast51%—70°51°+3°
AQI 39 (Good), driven by Ozone. AQI up 9 over the last 6 hours (gradual rise). Ozone at AQI 47 — 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 47 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 5.9 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 47
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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:42 AM
- Moonset
- 9:54 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Galesburg at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Galesburg
- Tue73°58°33%
- Wed83°57°97%
- Thu70°58°1%
- Fri71°54°2%
- Sat73°56°11%
- Sun67°57°58%
- Mon70°51°45%
- Tue73°55°7%
- Wed77°60°11%
- Thu81°65°19%
- Fri85°68°25%
- Sat87°70°29%
- Sun87°74°33%
- Mon87°72°39%
- Tue87°70°35%
- Wed89°70°37%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Galesburg
SPC has placed Galesburg in the Enhanced Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWENHEnhanced Risk
- DAY 3NONENo severe 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 Galesburg
- 61401
- 61402