Rankin, Illinois Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Rankin weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 12:50 AM CDT · Open-Meteo
- TodaySep 21Light Rain19%0.31″65°59°—
- TuesdaySep 22Overcast——64°54°-1°
- WednesdaySep 23Overcast——62°57°-2°
- ThursdaySep 24Overcast——69°56°+7°
- FridaySep 25Overcast——71°54°+2°
- SaturdaySep 26Light Drizzle—0.01″59°57°-12°
- SundaySep 27Overcast——73°52°+14°
Air quality now AQI 36 · Good
AQI 36 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:26 PM
- Moonset
- 1:10 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Rankin at a glance
- Today vs. normal: Today averages 62°F (high 65°F, low 59°F), 3°F below the 65°F normal for Sep 21
- Last frost: April 22 (1991–2020 median, NOAA station 18 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Rankin
- Mon65°59°19%
- Tue64°54°6%
- Wed62°57°3%
- Thu69°56°1%
- Fri71°54°0%
- Sat59°57°1%
- Sun73°52°5%
- Mon73°50°9%
- Tue76°54°27%
- Wed72°51°22%
- Thu70°47°13%
- Fri69°51°23%
- Sat75°61°27%
- Sun83°62°24%
- Mon78°58°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 19) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Rankin
SPC includes Rankin in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Rankin
Rankin sits in Vermilion County, where the year’s longest day runs 15h 4m of daylight and its shortest just 9h 17m — a swing of +5h 47m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Chicago, the state’s largest city, lies about 95 miles to the N. The nearest town Rankin tracks is Champaign, roughly 31 miles to the SW.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash | lettuce, peas, tomatoes, peppers, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
In Rankin, July runs warmest near 75°F and January coldest around 26°F, while June is the wettest month (4.9 inches) and February the driest (2.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 26° | 2.1″ | 9 |
| February | 30° | 2.0″ | 8 |
| March | 41° | 2.8″ | 9 |
| April | 53° | 4.0″ | 11 |
| May | 63° | 4.8″ | 11 |
| June | 72° | 4.9″ | 10 |
| July | 75° | 4.6″ | 9 |
| August | 73° | 4.0″ | 8 |
| September | 67° | 3.4″ | 8 |
| October | 55° | 3.4″ | 9 |
| November | 42° | 2.9″ | 9 |
| December | 31° | 2.1″ | 8 |
Regional context
Similar climates East Lynn, IL, Cissna Park, IL, Loda, IL
Rankin's climate, from NOAA NCEI 1991-2020 station normals, pairs 26°F Januarys with 75°F Julys — a 49°F swing. About 40.9 inches of precipitation falls over roughly 108 days a year.
Precipitation in Rankin runs summer-dominant: June averages 4.9 inches across 10.4 days of warm-season storms, while February drops to 2.0 inches over 8.1 rainy days of drier cool air. That puts Rankin in a summer-convective cohort with places like East Lynn, IL, Cissna Park, IL and Loda, IL.
The cool-season window in Rankin starts at April 22, when nights stop freezing — think kale, peas, spinach, and parsnips. Warm-soil crops in Rankin wait about two weeks past Rankin's last frost, once the soil warms. Rankin's window closes around October 19 as Rankin's overnight lows return below freezing. Sheltered Rankin yards can escape a light frost.
Similar climates: East Lynn, IL, Cissna Park, IL, Loda, IL, Paxton, IL, Penfield, IL.
Frequently asked
- When does it freeze in Rankin?
- In Rankin, expect the last spring frost near April 22; Rankin's first autumn frost comes around October 19.
- What is the rainy season in Rankin?
- June is the wettest month in Rankin, about 4.9 inches on average; the year totals roughly 41 inches.
- What is the warmest month in Rankin?
- The warmest stretch in Rankin comes in July, around 75°F on average.
- What is the coldest month in Rankin?
- On average January is the chilliest month in Rankin, about 26°F.
- When can I start a vegetable garden in Rankin?
- Frost-hardy sowings begin at April 22 in Rankin; warm-season starts follow two weeks on.
- How many rainy days does Rankin get?
- Expect roughly 108 wet days a year in Rankin.
- What hardiness zone is Rankin?
- Rankin sits in the USDA zone set by January lows near 26°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Rankin?
- Rankin's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Rankin?
- See this week's day-by-day rain chances for Rankin in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Rankin?
- Current conditions for Rankin and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Rankin forecast updated?
- The Rankin forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Rankin?
- Today's sunrise and sunset times for Rankin are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Rankin?
- The next few days in Rankin's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Rankin sits at 40.5°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Rankin
- 60960