Joslin, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Joslin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle45%0.02″85°67°—
- SundayJul 5Overcast29%—85°67°0°
- MondayJul 6Mostly Clear——82°63°-3°
- TuesdayJul 7Overcast——80°59°-2°
- WednesdayJul 8Overcast10%—83°63°+3°
- ThursdayJul 9Thunderstorm39%0.01″82°68°-1°
- FridayJul 10Overcast23%—81°65°-1°
AQI 26 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 36 now. With UV 3.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 11 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 36 now. With UV 3.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 11 around 1 PM.
- Present
- AQI 36
- UV peak
- 3.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 6.1 µg/m³, PM10 at 7.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.79
- 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
- 10:57 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Joslin at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Joslin
- Sat85°67°45%
- Sun85°67°29%
- Mon82°63°3%
- Tue80°59°1%
- Wed83°63°10%
- Thu82°68°39%
- Fri81°65°23%
- Sat84°66°18%
- Sun69°59°9%
- Mon75°56°7%
- Tue75°60°7%
- Wed80°64°16%
- Thu81°66°16%
- Fri82°69°29%
- Sat86°70°19%
- Sun86°72°32%
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 — Joslin
SPC has placed Joslin in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Joslin
- 61257