Urbana, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Urbana weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain50%0.45″89°70°—
- SundayJul 5Overcast21%—83°69°-6°
- MondayJul 6Partly Cloudy17%—82°66°-1°
- TuesdayJul 7Clear——80°61°-2°
- WednesdayJul 8Clear——82°61°+2°
- ThursdayJul 9Thunderstorm40%0.02″83°69°+1°
- FridayJul 10Light Drizzle40%—77°71°-6°
AQI 31 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 43 now. With UV 6.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 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 43 now. With UV 6.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 around 1 PM.
- Present
- AQI 43
- UV peak
- 6.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 38
PM × Wind × Precip
PM2.5 at 6.6 µg/m³, PM10 at 7.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 10:48 PM
- Moonset
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Urbana at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 61801, 61802
16-Day Forecast — Urbana
- Sat89°70°50%
- Sun83°69°21%
- Mon82°66°17%
- Tue80°61°4%
- Wed82°61°5%
- Thu83°69°40%
- Fri77°71°40%
- Sat82°66°12%
- Sun71°58°8%
- Mon71°56°6%
- Tue77°59°10%
- Wed80°63°19%
- Thu82°65°20%
- Fri80°69°29%
- Sat85°71°29%
- Sun81°71°39%
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 — Urbana
SPC has placed Urbana in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 scorching afternoon
Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.
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
Urbana'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 |
Regional context
Urbana's climate, from NOAA NCEI 1991-2020 station normals, pairs 26°F Januarys with 75°F Julys — a 50°F swing. About 40.9 inches of precipitation falls over roughly 74 days a year.
Urbana's rain peaks in summer: May brings 4.8 inches over 8.6 thunderstorm-fed days, while February sees just 2.2 inches across 4.6 days under cooler, drier air. It is a warm-season-wet pattern Urbana shares with places like Champaign, IL, Savoy, IL and Philo, IL.
By mid-April the frosts ease in Urbana, opening the season for kale, peas, spinach, and parsnips. In Urbana, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Urbana's frost date. Around mid-November, freezing nights resume in Urbana and tender crops must come in. In Urbana, low spots run 4-7°F colder than nearby slopes, nudging Urbana's frost dates a week.
Similar climates: Champaign, IL, Savoy, IL, Philo, IL, St. Joseph, IL, Sidney, IL.
Frequently asked
- When does it freeze in Urbana?
- In Urbana, expect the last spring frost near mid-April; Urbana's first autumn frost comes around mid-November.
- What is the rainy season in Urbana?
- Urbana sees its heaviest rain in May (around 4.8 inches), part of roughly 41 inches a year.
- What is the warmest month in Urbana?
- July is Urbana's warmest month, averaging about 75°F.
- What is the coldest month in Urbana?
- Urbana bottoms out in January, with a mean near 26°F.
- When can I start a vegetable garden in Urbana?
- Frost-hardy sowings begin at mid-April in Urbana; warm-season starts follow two weeks on.
- How many rainy days does Urbana get?
- Urbana records around 74 days of measurable precipitation annually.
- What hardiness zone is Urbana?
- Urbana 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 Urbana?
- Urbana'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 Urbana?
- See this week's day-by-day rain chances for Urbana in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Urbana?
- Current conditions for Urbana and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Urbana forecast updated?
- The Urbana forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Urbana?
- Today's sunrise and sunset times for Urbana 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 Urbana?
- The next few days in Urbana's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Urbana, Illinois has a humid subtropical climate: January averages roughly 26°F, July about 75°F, 49°F between them.
Yearly precipitation in Urbana totals around 41 inches, spread over about 74 days of rain or snow.
Latitude 40.1°N gives Urbana its 49°F swing, and with it the rhythm of Urbana's growing season.
ZIP codes in Urbana
- 61801
- 61802
- 61803