Arcola, Indiana Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Arcola weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain53%1.0″88°71°—
- SundayJul 5Overcast32%—81°69°-7°
- MondayJul 6Overcast26%—80°67°-1°
- TuesdayJul 7Mostly Clear——83°61°+3°
- WednesdayJul 8Overcast——83°64°0°
- ThursdayJul 9Thunderstorm44%—79°64°-4°
- FridayJul 10Light Drizzle41%—78°68°-1°
AQI 38 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 50 now. With UV 3.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 24 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 50 now. With UV 3.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 24 around 1 PM.
- Present
- AQI 50
- UV peak
- 3.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 24
PM × Wind × Precip
PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.94 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:37 PM
- Moonset
- 10:45 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Arcola at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46704
16-Day Forecast — Arcola
- Sat88°71°53%
- Sun81°69°32%
- Mon80°67°26%
- Tue83°61°4%
- Wed83°64°3%
- Thu79°64°44%
- Fri78°68°41%
- Sat83°64°20%
- Sun72°63°12%
- Mon73°61°10%
- Tue76°59°11%
- Wed82°61°23%
- Thu85°66°32%
- Fri80°69°26%
- Sat85°67°24%
- Sun86°69°35%
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 — Arcola
SPC has placed Arcola in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
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
Arcola's warmest month is July (~74°F mean) and its coldest is January (~26°F). Rainfall peaks in May (4.6 inches) and bottoms out in February (2.1 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 26° | 2.5″ | 6 |
| February | 29° | 2.1″ | 5 |
| March | 39° | 2.8″ | 6 |
| April | 50° | 3.7″ | 8 |
| May | 61° | 4.6″ | 8 |
| June | 71° | 4.5″ | 8 |
| July | 74° | 4.0″ | 7 |
| August | 72° | 3.8″ | 6 |
| September | 65° | 3.0″ | 6 |
| October | 53° | 3.0″ | 6 |
| November | 41° | 3.0″ | 6 |
| December | 31° | 2.5″ | 6 |
Frequently asked
- When does it freeze in Arcola?
- Arcola's last spring frost lands near mid-April, and in Arcola the first fall frost follows around mid-November.
- What is the rainy season in Arcola?
- Arcola sees its heaviest rain in May (around 4.6 inches), part of roughly 39 inches a year.
- What is the warmest month in Arcola?
- Arcola peaks in July, when the mean runs near 74°F.
- What is the coldest month in Arcola?
- January is Arcola's coldest month, averaging about 26°F.
- When can I start a vegetable garden in Arcola?
- In Arcola, sow peas and hardy greens around mid-April; Arcola's tomatoes and peppers wait two weeks more.
- How many rainy days does Arcola get?
- Arcola records around 77 days of measurable precipitation annually.
- What hardiness zone is Arcola?
- Because Arcola bottoms near 26°F in January, that winter low sets Arcola's USDA zone — verify by ZIP.
- What is the 10-day forecast for Arcola?
- Arcola'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 Arcola?
- See this week's day-by-day rain chances for Arcola in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Arcola?
- Current conditions for Arcola and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Arcola forecast updated?
- The Arcola forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Arcola?
- Today's sunrise and sunset times for Arcola 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 Arcola?
- The next few days in Arcola's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a warm-summer humid continental zone, Arcola, Indiana swings from 26°F in the heart of winter to 74°F at midsummer — a 48°F arc.
Across the year, Arcola collects about 39 inches of precipitation over roughly 77 days with measurable rain or snow.
Arcola's 48°F range, set by its 41.1°N position, drives frost timing and what thrives in Arcola.
ZIP codes in Arcola
- 46818
- 46704