Forrest, Illinois Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
Forrest weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Thunderstorm55%0.01″75°58°—
- WednesdayJun 17Thunderstorm73%0.87″78°56°+3°
- ThursdayJun 18Light Drizzle61%—69°58°-9°
- FridayJun 19Light Drizzle——72°55°+3°
- SaturdayJun 20Drizzle11%—74°56°+2°
- SundayJun 21Rain57%0.65″61°57°-13°
- MondayJun 22Overcast55%—71°54°+10°
AQI 29 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 37 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.
- Present
- AQI 37
- UV peak
- 5.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 28
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
- 6:35 AM
- Moonset
- 9:44 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Forrest at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Forrest
- Tue75°58°55%
- Wed78°56°73%
- Thu69°58°61%
- Fri72°55°2%
- Sat74°56°11%
- Sun61°57°57%
- Mon71°54°55%
- Tue73°55°10%
- Wed78°59°10%
- Thu80°62°25%
- Fri84°69°25%
- Sat86°72°35%
- Sun89°74°42%
- Mon89°71°36%
- Tue90°74°32%
- Wed91°75°39%
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 — Forrest
SPC has placed Forrest in the Moderate Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWMDTModerate Risk
- DAY 3NONENo severe risk
Widespread severe storms expected. Tornadoes (some strong), large hail, and damaging wind gusts are likely. Stay weather-aware and review your sheltering plan.
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 Forrest
- 61741