When to plant Tomatoes in Illinois

In spring, from Apr 10 – June 1 in Alton to May 10 – June 15 in Zion.

In fall, June 1 – July 1.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Tomatoes planting dates by place in Illinois
PlaceSpringFall
AddisonMay 5 – June 10June 1 – July 1
AlgonquinMay 10 – June 15June 1 – July 1
AlsipApr 20 – June 1June 1 – July 1
AltonApr 10 – June 1June 1 – July 15
AntiochMay 5 – June 10June 1 – July 1
Arlington HeightsMay 5 – June 10June 1 – July 1
AuroraMay 5 – June 10June 1 – July 1
BarringtonMay 5 – June 10June 1 – July 1
BartlettMay 10 – June 15June 1 – 20
BataviaMay 5 – June 10June 1 – July 1
Beach ParkMay 10 – June 15June 1 – July 1
BellevilleApr 20 – June 1June 1 – July 1
BellwoodMay 5 – June 10June 1 – July 1
BelvidereMay 5 – June 10June 1 – July 1
BensenvilleMay 5 – June 10June 1 – July 1
BerwynApr 20 – June 1June 1 – July 1
BloomingdaleMay 10 – June 15June 1 – 20
BloomingtonMay 5 – June 10June 1 – July 1
Blue IslandApr 20 – June 1June 1 – July 1
BolingbrookMay 5 – June 10June 1 – July 1
BourbonnaisMay 5 – June 10June 1 – July 1
BradleyMay 5 – June 10June 1 – July 1
BridgeviewApr 20 – June 1June 1 – July 1
BrookfieldApr 20 – June 1June 1 – July 1
Buffalo GroveMay 5 – June 10June 1 – July 1
BurbankApr 20 – June 1June 1 – July 1
Burr RidgeMay 5 – June 10June 1 – July 1
Cahokia HeightsApr 20 – June 1June 1 – July 1
Calumet CityMay 5 – June 10June 1 – July 1
Campton HillsMay 5 – June 10June 1 – July 1
CantonMay 5 – June 10June 1 – July 1
CarbondaleApr 20 – June 1June 1 – July 1
Carol StreamMay 5 – June 10June 1 – July 1
CarpentersvilleMay 10 – June 15June 1 – July 1
CaryMay 10 – June 15June 1 – 20
CentraliaApr 20 – June 1June 1 – July 1
ChampaignApr 20 – June 1June 1 – July 1
ChannahonMay 5 – June 10June 1 – July 1
CharlestonApr 20 – June 1June 1 – July 1
ChathamApr 20 – June 1June 1 – July 1
ChicagoApr 20 – June 1June 1 – July 15
Chicago HeightsMay 5 – June 10June 1 – July 1
Chicago RidgeApr 20 – June 1June 1 – July 1
CiceroApr 20 – June 1June 1 – July 1
CollinsvilleApr 20 – June 1June 1 – July 1
ColumbiaApr 20 – June 1June 1 – July 1
Country Club HillsMay 5 – June 10June 1 – July 1
Crest HillMay 5 – June 10June 1 – July 1
CrestwoodApr 20 – June 1June 1 – July 1
Crystal LakeMay 5 – June 10June 1 – July 1
DanvilleMay 5 – June 10June 1 – July 1
DarienMay 5 – June 10June 1 – July 1
DecaturApr 20 – June 1June 1 – July 1
DeerfieldMay 10 – June 15June 1 – July 1
DeKalbMay 5 – June 10June 1 – July 1
Des PlainesMay 5 – June 10June 1 – July 1
DixonMay 5 – June 10June 1 – July 1
DoltonMay 5 – June 10June 1 – July 1
Downers GroveMay 10 – June 15June 1 – July 1
East MolineMay 5 – June 10June 1 – July 1
East PeoriaMay 5 – June 10June 1 – July 1
East St. LouisApr 20 – June 1June 1 – July 1
EdwardsvilleApr 10 – June 1June 1 – July 15
EffinghamApr 20 – June 1June 1 – July 1
ElginMay 10 – June 15June 1 – July 1
Elk Grove VillageMay 5 – June 10June 1 – July 1
ElmhurstMay 5 – June 10June 1 – July 1
Elmwood ParkMay 5 – June 10June 1 – July 1
EvanstonMay 10 – June 15June 1 – July 1
Evergreen ParkApr 20 – June 1June 1 – July 1
Fairview HeightsApr 20 – June 1June 1 – July 1
Forest ParkApr 20 – June 1June 1 – July 1
Fox LakeMay 5 – June 10June 1 – July 1
FrankfortMay 5 – June 10June 1 – July 1
Franklin ParkMay 5 – June 10June 1 – July 1
FreeportMay 10 – June 15June 1 – 20
GalesburgMay 5 – June 10June 1 – July 1
GenevaMay 5 – June 10June 1 – July 1
Glen CarbonApr 10 – June 1June 1 – July 15
Glen EllynMay 10 – June 15June 1 – July 1
Glendale HeightsMay 10 – June 15June 1 – July 1
GlenviewMay 10 – June 15June 1 – July 1
GodfreyApr 10 – June 1June 1 – July 15
Granite CityApr 10 – June 1June 1 – July 15
GrayslakeMay 10 – June 15June 1 – July 1
GurneeMay 10 – June 15June 1 – July 1
Hanover ParkMay 10 – June 15June 1 – 20
HarveyMay 5 – June 10June 1 – July 1
Hazel CrestMay 5 – June 10June 1 – July 1
HerrinApr 20 – June 1June 1 – July 1
Hickory HillsMay 5 – June 10June 1 – July 1
HighlandApr 20 – June 1June 1 – July 1
Highland ParkMay 10 – June 15June 1 – July 1
HinsdaleMay 5 – June 10June 1 – July 1
Hoffman EstatesMay 10 – June 15June 1 – 20
Homer GlenMay 5 – June 10June 1 – July 1
HomewoodMay 5 – June 10June 1 – July 1
HuntleyMay 5 – June 10June 1 – July 1
JacksonvilleMay 5 – June 10June 1 – July 1
JolietMay 5 – June 10June 1 – July 1
JusticeApr 20 – June 1June 1 – July 1
KankakeeMay 5 – June 10June 1 – July 1
KewaneeMay 5 – June 10June 1 – July 1
La GrangeApr 20 – June 1June 1 – July 1
La Grange ParkApr 20 – June 1June 1 – July 1
Lake ForestMay 10 – June 15June 1 – July 1
Lake in the HillsMay 5 – June 10June 1 – July 1
Lake ZurichMay 10 – June 15June 1 – July 1
LansingMay 5 – June 10June 1 – July 1
LemontMay 5 – June 10June 1 – July 1
LibertyvilleMay 10 – June 15June 1 – July 1
LincolnMay 5 – June 10June 1 – July 1
LincolnwoodMay 10 – June 15June 1 – July 1
LindenhurstMay 5 – June 10June 1 – July 1
LisleMay 10 – June 15June 1 – July 1
LockportMay 5 – June 10June 1 – July 1
LombardMay 10 – June 15June 1 – July 1
Loves ParkMay 5 – June 10June 1 – July 1
LyonsApr 20 – June 1June 1 – July 1
Machesney ParkMay 10 – June 15June 1 – 20
MacombMay 5 – June 10June 1 – July 1
MahometMay 5 – June 10June 1 – 20
ManhattanMay 5 – June 10June 1 – July 1
MarionApr 20 – June 1June 1 – July 1
MarkhamMay 5 – June 10June 1 – July 1
MattesonMay 5 – June 10June 1 – July 1
MattoonApr 20 – June 1June 1 – July 1
MaywoodApr 20 – June 1June 1 – July 1
McHenryMay 10 – June 15June 1 – 20
Melrose ParkMay 5 – June 10June 1 – July 1
MidlothianApr 20 – June 1June 1 – July 1
MinookaMay 5 – June 10June 1 – July 1
MokenaMay 5 – June 10June 1 – July 1
MolineMay 5 – June 10June 1 – July 1
MontgomeryMay 5 – June 10June 1 – July 1
MorrisMay 5 – June 10June 1 – July 1
MortonMay 5 – June 10June 1 – July 1
Morton GroveMay 10 – June 15June 1 – July 1
Mount ProspectMay 5 – June 10June 1 – July 1
Mount VernonApr 20 – June 1June 1 – July 1
MundeleinMay 10 – June 15June 1 – July 1
NapervilleMay 10 – June 15June 1 – July 1
New LenoxMay 5 – June 10June 1 – July 1
NilesMay 5 – June 10June 1 – July 1
NormalMay 5 – June 10June 1 – July 1
NorridgeMay 5 – June 10June 1 – July 1
North AuroraMay 5 – June 10June 1 – July 1
North ChicagoMay 10 – June 15June 1 – July 1
NorthbrookMay 10 – June 15June 1 – July 1
NorthlakeMay 5 – June 10June 1 – July 1
O'FallonApr 20 – June 1June 1 – July 1
Oak ForestMay 5 – June 10June 1 – July 1
Oak LawnApr 20 – June 1June 1 – July 1
Oak ParkApr 20 – June 1June 1 – July 1
Orland ParkMay 5 – June 10June 1 – July 1
OswegoMay 5 – June 10June 1 – July 1
OttawaMay 10 – June 15June 1 – July 1
PalatineMay 5 – June 10June 1 – July 1
Palos HeightsApr 20 – June 1June 1 – July 1
Palos HillsMay 5 – June 10June 1 – July 1
Park ForestMay 5 – June 10June 1 – July 1
Park RidgeMay 5 – June 10June 1 – July 1
PekinMay 5 – June 10June 1 – July 1
PeoriaMay 5 – June 10June 1 – July 1
Pingree GroveMay 10 – June 15June 1 – July 1
PlainfieldMay 5 – June 10June 1 – July 1
PlanoMay 10 – June 15June 1 – 20
PontiacMay 5 – June 10June 1 – July 1
Prospect HeightsMay 5 – June 10June 1 – July 1
QuincyApr 20 – June 1June 1 – July 1
RantoulMay 5 – June 10June 1 – July 1
Richton ParkMay 5 – June 10June 1 – July 1
River ForestApr 20 – June 1June 1 – July 1
River GroveMay 5 – June 10June 1 – July 1
RiverdaleApr 20 – June 1June 1 – July 1
Rock IslandMay 5 – June 10June 1 – July 1
RockfordMay 5 – June 10June 1 – July 1
Rolling MeadowsMay 5 – June 10June 1 – July 1
RomeovilleMay 5 – June 10June 1 – July 1
RoscoeMay 10 – June 15June 1 – 20
RoselleMay 10 – June 15June 1 – 20
Round LakeMay 10 – June 15June 1 – July 1
Round Lake BeachMay 5 – June 10June 1 – July 1
SchaumburgMay 10 – June 15June 1 – 20
Schiller ParkMay 5 – June 10June 1 – July 1
ShilohApr 20 – June 1June 1 – July 1
ShorewoodMay 5 – June 10June 1 – July 1
SkokieMay 10 – June 15June 1 – July 1
South ElginMay 10 – June 15June 1 – July 1
South HollandMay 5 – June 10June 1 – July 1
SpringfieldApr 20 – June 1June 1 – July 1
St. CharlesMay 5 – June 10June 1 – July 1
SterlingMay 5 – June 10June 1 – July 1
StreamwoodMay 10 – June 15June 1 – 20
StreatorApr 20 – June 1June 1 – July 1
SummitApr 20 – June 1June 1 – July 1
SwanseaApr 20 – June 1June 1 – July 1
SycamoreMay 5 – June 10June 1 – July 1
TaylorvilleApr 20 – June 1June 1 – July 1
Tinley ParkMay 5 – June 10June 1 – July 1
TroyApr 20 – June 1June 1 – July 1
UrbanaApr 20 – June 1June 1 – July 1
Vernon HillsMay 10 – June 15June 1 – July 1
Villa ParkMay 10 – June 15June 1 – July 1
WarrenvilleMay 10 – June 15June 1 – July 1
WashingtonMay 5 – June 10June 1 – July 1
WaterlooApr 20 – June 1June 1 – July 1
WaucondaMay 10 – June 15June 1 – July 1
WaukeganMay 10 – June 15June 1 – July 1
West ChicagoMay 5 – June 10June 1 – July 1
WestchesterApr 20 – June 1June 1 – July 1
Western SpringsMay 5 – June 10June 1 – July 1
WestmontMay 10 – June 15June 1 – July 1
WheatonMay 10 – June 15June 1 – July 1
WheelingMay 5 – June 10June 1 – July 1
WilmetteMay 10 – June 15June 1 – July 1
WinfieldMay 5 – June 10June 1 – July 1
WinnetkaMay 10 – June 15June 1 – July 1
Wood DaleMay 5 – June 10June 1 – July 1
Wood RiverApr 10 – June 1June 1 – July 15
WoodridgeMay 10 – June 15June 1 – July 1
WoodstockMay 5 – June 10June 1 – July 1
WorthApr 20 – June 1June 1 – July 1
YorkvilleMay 10 – June 15June 1 – 20
ZionMay 10 – June 15June 1 – July 1

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for tomatoes.