Sadorus, Illinois Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
Sadorus weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——84°53°—
- ThursdayJun 4Overcast——85°58°+1°
- FridayJun 5Light Drizzle24%—80°65°-5°
- SaturdayJun 6Light Showers37%—81°65°+1°
- SundayJun 7Drizzle23%—84°69°+3°
- MondayJun 8Heavy Drizzle28%0.01″75°69°-9°
- TuesdayJun 9Light Drizzle18%—74°69°-1°
Ozone at AQI 500 now. AQI flat over the last 6 hours (within ±3 points). With UV 9.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 425 by mid-afternoon.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500 now. With UV 9.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 425 by mid-afternoon.
- Present
- AQI 500
- UV peak
- 9.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 425
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).
The higher the clouds, the finer the weather.
- Moonrise
- 3:45 AM
- Moonset
- 12:52 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
Sadorus at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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 — Sadorus
SPC has placed Sadorus in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Sadorus's warmest month is July (~75°F mean) and its coldest is January (~26°F). Rainfall peaks in May (4.8 inches) and bottoms out in February (2.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 26° | 2.3″ | 5 |
| February | 30° | 2.2″ | 5 |
| March | 41° | 2.8″ | 6 |
| April | 52° | 3.9″ | 8 |
| May | 63° | 4.8″ | 9 |
| June | 72° | 4.6″ | 7 |
| July | 75° | 4.5″ | 7 |
| August | 74° | 3.5″ | 6 |
| September | 67° | 3.4″ | 5 |
| October | 55° | 3.4″ | 6 |
| November | 41° | 3.2″ | 6 |
| December | 31° | 2.4″ | 5 |
Frequently asked
- When does it freeze in Sadorus?
- Sadorus's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Sadorus?
- May is the wettest month with about 4.8 inches of rain on average; the city receives roughly 41 inches annually.
- What is the warmest month in Sadorus?
- July is typically warmest, averaging about 75°F.
- What is the coldest month in Sadorus?
- January is typically coldest, averaging about 26°F.
- When can I start a vegetable garden in Sadorus?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Sadorus get?
- Sadorus averages about 74 rainy days per year.
- What hardiness zone is Sadorus?
- Sadorus's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Sadorus, Illinois sits in a humid subtropical climate zone. January means hover near 26°F while July averages 75°F — a 50°F seasonal swing.
Across the year, Sadorus receives about 41 inches of precipitation spread over roughly 74 rainy days.
The rhythm of the year is set by latitude (40.0°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.