Weather StoryAlmanac, microseasons, and the day's weather story.

Tolono, Illinois Weather

Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →

Tolono weather forecast — hour by hour, 7-day outlook, NOAA radar

Tolono, IL
Monday, June 15 at 4:16 PM
72
°
Clear
Feels like
72°
Humidity
42%
Wind
5 mph
Sunrise
12:23 AM
Sunset
3:23 PM
Tolono, IL
Hour by hour · 24h
24-Hour ForecastTolono, IL: 24-hour forecast. Temperatures range from 55 to 73 degrees Fahrenheit with a 38% chance of precipitation at 2 PM.
L 55°H 73°
Tolono, IL
7-day forecast
  1. Today
    Jun 15
    Mostly Clear
    —
    —
    72°55°—
  2. Tuesday
    Jun 16
    Heavy Rain
    38%
    0.57″
    73°55°+1°
  3. Wednesday
    Jun 17
    T-storm w/ Hvy Hail
    89%
    0.02″
    82°52°+9°
  4. Thursday
    Jun 18
    Light Drizzle
    89%
    —
    73°59°-9°
  5. Friday
    Jun 19
    Light Drizzle
    —
    —
    74°56°+1°
  6. Saturday
    Jun 20
    Overcast
    —
    —
    75°53°+1°
  7. Sunday
    Jun 21
    Thunderstorm
    48%
    1.2″
    76°62°+1°
Tolono, IL
Next 24 hours · Mild now
52°64°76°12p6p12a6anow 72°high 73°low 55°PRECIP %
Tolono, IL
Anemometer · 24h winds · from true
NESW
From · True
W
275° · backing 44°
Direction
W
275°
Sustained
5
mph
Gust
9
mph
Peak 24h
28
avg 7
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 7 · pk 28 @ 5:00p
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2816SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 44° from the w.
Tolono, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
987.9
-1.9 mb in 3h · falling · 29.17 inHg
Now
987.9
mb
3h
-1.9
mb
12h
-1.5
mb
24h
+0.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 987–990
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW990.3987.4987.8
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Tolono, IL
Air quality
36
AQI
Good
↑+8 in 6h▲Peak ~42 @ 11 PM

AQI 36 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 48 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
3.6μg/m³
PM 10Good
4μg/m³
NO₂Good
1μg/m³
OzoneDRIVERUnhealthy SG
101μg/m³
UV IndexModerate
3.1

What's driving it

Ozone × UV × Sky

Ozone at AQI 48 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 48
UV peak
2.8 at earlier today
Sky at peak
clear
Projected peak
AQI 48

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).

7-DAY AQI TREND50100MONTUEWEDTHUFRISATSUNMON7-DAY PM2.5 TREND · μg/m³300
Tolono, IL
Sky cover · visibility · 24h
Cloud cover
2%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
93.6mi
UNLIMITED
98 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
21:16 UTC · Tolono, IL · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
21:16 UTC · Tolono, IL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Tolono, IL
Satellite · infrared · animated
Tolono, IL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Tolono, IL
Almanac · Monday, June 15
A summer fog for fair, a winter fog for rain.
Civil dawn
4:52 AM
Sunrise
12:23 AM
Daylight
15h 00m
Sunset
3:23 PM
Civil dusk
8:57 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Tolono, IL
The moon
New Moon
1% illuminated
Moonrise
5:26 AM
Moonset
8:39 PM
In sign
♋︎ Cancer
Tolono, IL
Microseason
Jun 11–15

Sun climbs to its northern throne

insect
Jan 145% of the yearDec 31

Read this microseason across nine climate regions →

Tolono at a glance

  • Today vs. normal: 3°F below the seasonal normal for this latitude
  • Last frost: April 16 (climatological average for this latitude)
  • Microseason: Jun 11–15
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Tolono

  1. Mon72°55°0%
  2. Tue73°55°38%
  3. Wed82°52°89%
  4. Thu73°59°89%
  5. Fri74°56°4%
  6. Sat75°53°7%
  7. Sun76°62°48%
  8. Mon81°65°49%
  9. Tue72°63°15%
  10. Wed77°62°9%
  11. Thu78°62°14%
  12. Fri77°60°23%
  13. Sat71°61°29%
  14. Sun83°63°29%
  15. Mon75°63°35%
  16. Tue69°59°35%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of June 15, 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 — Tolono

SPC has placed Tolono in the Enhanced Risk category for severe thunderstorms day after tomorrow.

  • TODAYNONENo severe risk
  • TOMORROWMRGLMarginal Risk
  • DAY 3ENHEnhanced Risk

Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.

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.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its Return.December 26–31: The Year Turns in Silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · June 11–15

Sun climbs to its northern throne

Days lengthen toward solstice; longest light lingers until after 8 PM, heat building steadily.

Day 166 of 365 · Wedge 33 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

Tolono peaks at about 75°F in July and bottoms near 26°F in January; May brings the heaviest rain (4.8 inches) and February the least (2.2 inches).

MonthMean tempPrecipRainy days
January26°2.3″5
February30°2.2″5
March41°2.8″6
April52°3.9″8
May63°4.8″9
June72°4.6″7
July75°4.5″7
August74°3.5″6
September67°3.4″5
October55°3.4″6
November41°3.2″6
December31°2.4″5

Regional context

By the nearest station's NOAA NCEI 1991-2020 normals, Tolono sees 26°F Januarys and 75°F Julys, a 50°F range, plus around 40.9 inches of precipitation across 74 days.

Precipitation in Tolono runs summer-dominant: May averages 4.8 inches across 8.6 days of warm-season storms, while February drops to 2.2 inches over 4.6 rainy days of drier cool air. That puts Tolono in a summer-convective cohort with places like Sadorus, IL, Savoy, IL and Pesotum, IL.

The cool-season window in Tolono starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. Hold Tolono's tender crops — tomatoes, peppers, basil — until 10-14 days past Tolono's last frost. Tolono's window closes around mid-November as overnight lows return below freezing. Within Tolono, cold-air pooling chills low spots by 5-10°F, shifting Tolono's local frost dates.

Similar climates: Sadorus, IL, Savoy, IL, Pesotum, IL, Philo, IL, Champaign, IL.

Frequently asked

When does it freeze in Tolono?
Tolono's last spring frost lands near mid-April, and in Tolono the first fall frost follows around mid-November.
What is the rainy season in Tolono?
May is the wettest month in Tolono, about 4.8 inches on average; the year totals roughly 41 inches.
What is the warmest month in Tolono?
July is Tolono's warmest month, averaging about 75°F.
What is the coldest month in Tolono?
Tolono bottoms out in January, with a mean near 26°F.
When can I start a vegetable garden in Tolono?
Frost-hardy sowings begin at mid-April in Tolono; warm-season starts follow two weeks on.
How many rainy days does Tolono get?
Expect roughly 74 wet days a year in Tolono.
What hardiness zone is Tolono?
Tolono's hardiness zone tracks its winter low; with January near 26°F, check the USDA ZIP map for the exact zone.
What is the 10-day forecast for Tolono?
Tolono'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 Tolono?
See this week's day-by-day rain chances for Tolono in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Tolono?
Current conditions for Tolono and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Tolono forecast updated?
The Tolono forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Tolono?
Day length in Tolono peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Tolono?
The next few days in Tolono's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Tolono's humid subtropical climate in Illinois pairs 26°F Januarys with 75°F Julys, 49°F apart across the seasons.

In a typical year Tolono records about 41 inches of precipitation on around 74 days.

At 40.0°N, Tolono's 49°F summer-to-winter swing sets when Tolono's gardens wake and when frost returns.

All cities in Illinois →

Champaign, IL weather →

ZIP codes in Tolono

  • 61880

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.