Peotone Weather
National Weather Service Forecast for: 2 Miles SE Peotone, IL
Issued by: National Weather Service Chicago/Romeoville, IL
Updated: Wed, 31-May-2023 10:11am CDT

Peotone, IL
 
Today

Today: Mostly Sunny then Scattered Showers And Thunderstorms
Mostly Sunny then Scattered Showers And T-Storms
Thursday

Thursday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday

Friday: Sunny
Sunny
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Sunny
Sunny
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny then Slight Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And T-Storms
 
Hi 89 °F ↓ Hi 89 °F Hi 91 °F Hi 91 °F Hi 86 °F Hi 84 °F Hi 81 °F  
 
Tonight

Tonight: Scattered Showers And Thunderstorms then Partly Cloudy
Scattered Showers And T-Storms then Partly Cloudy
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms then Mostly Clear
Chance Showers And T-Storms then Mostly Clear
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday
Night
Monday Night: Partly Cloudy
Partly Cloudy
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
 
Lo 65 °F Lo 64 °F Lo 62 °F Lo 62 °F Lo 57 °F Lo 59 °F Lo 53 °F  

 

Today
 
Scattered showers and thunderstorms after noon. Mostly sunny. High near 89, with temperatures falling to around 85 in the afternoon. South southeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
Scattered showers and thunderstorms before 10pm. Partly cloudy, with a low around 65. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Thursday
 
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 89. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night
 
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 64. East wind 5 to 10 mph. Chance of precipitation is 30%.
Friday
 
Sunny, with a high near 91. East wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
 
Mostly clear, with a low around 62.
Saturday
 
Mostly sunny, with a high near 91.
Saturday Night
 
Mostly clear, with a low around 62.
Sunday
 
Sunny, with a high near 86.
Sunday Night
 
Mostly clear, with a low around 57.
Monday
 
Mostly sunny, with a high near 84.
Monday Night
 
Partly cloudy, with a low around 59.
Tuesday
 
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Tuesday Night
 
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 53.

 

Forecast from NOAA-NWS for 2 Miles SE Peotone, IL.

000
FXUS63 KLOT 311127
AFDLOT

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
627 AM CDT Wed May 31 2023

.SHORT TERM...
Issued at 250 AM CDT Wed May 31 2023

Through Thursday...

Near term forecast focus is on isolated to scattered afternoon
and early evening showers and thunderstorms both today and
Thursday, as well as a continuation of very warm summerlike
temperatures. On an interesting climate note, Chicago O`Hare has
only received 0.42 inches of rain for the entire month of May,
ranking this as the second driest May in observed Chicago weather
history. We would slip down the list however, if an isolated storm
were to bring O`Hare more than 0.15 inches later today in the
final hours of the month.

Early morning surface analysis depicts high pressure to our east
across the mid-Atlantic and Northeastern states, and a weak trough
of low pressure to our west across the Plains. Locally, light
south to southeast winds have gradually increased low-level
moisture across the region as depicted by surface dew points in
the mid-upper 50s. This better supply of low-level moisture will
set the stage for isolated to scattered shower and thunderstorm
development by this afternoon, as the higher dew points will
contribute to weak capping and greater diurnal conditional
instability. With relatively light column winds and no substantial
larger scale forcing available, convective initiation will likely
be limited, and likely focused along the lake breeze and other
more subtle convergent boundaries. Given the lack of stronger
shear, evolution and coverage may become somewhat messy later this
afternoon and early evening as individual storm outflows serve as
forcing for additional development. Slow cell movement may allow
for some decent downpours where it rains, though precip will
likely be hit and miss with many areas not seeing any meaningful
rainfall. Coverage should wane this evening with the gradual loss
of daytime warmth and instability.

A similar scenario is expected Thursday, though with perhaps
somewhat lower coverage of diurnal convection. This may be
particularly the case to the east, as the upper level ridge over
the Northeastern states begins to retrograde to the west across
the Great Lakes region. Rising mid-level heights and associated
mid- level warming may make for slightly stronger capping later in
the day into our Indiana counties, and thus have carried the
lowest pops there.

Otherwise, our stretch of very warm, summerlike temperatures will
continue with afternoon highs in the upper 80s to lower 90s
expected again away from Lake Michigan both today and Thursday.
However, greater cloud coverage and convective outflow from
scattered storms may make for temperatures less uniform across the
area. Highs near the lake shore will be in the 70s both days.

Ratzer

&&

.LONG TERM...
Issued at 206 AM CDT Wed May 31 2023

Thursday night through Tuesday...

Forecast concerns include small chances for precipitation and high
temps.

No significant changes for the extended period. There may be some
lingering and dissipating showers or a few thunderstorms Thursday
evening. There will be one last small chance for a few showers or
thunderstorms Friday, mainly across the western cwa then drier air
will shift precip chances out of the area for the weekend. High
temps are likely to reach into the upper 80s/lower 90s away from
Lake Michigan. The models continue to show a cool front moving
southwest across the area on Sunday though there are differences
regarding how cool the air behind the front will be, with the GFS
the coolest. Then another cool front may move across the area by
midweek. Blended high temps have cooled again, mainly in the 80s
away from the lake, for early next week and those seem fine at
this distance. There may be a chance for a shower or thunderstorm
with these fronts, but the overall pattern remains very dry with
run total QPF amounts from both the ECMWF and the Canadian again
showing only a few tenths of an inch through 240 hours. cms

&&

.AVIATION...
For the 12Z TAFs...

627 AM...Forecast concerns include...

Chance of thunderstorms this afternoon.
Lake breeze/wind directions this afternoon.

Previous forecast remains generally on track. Previous prob
mention is now tempo mention with a chance of thunderstorms this
afternoon across the entire area, including at RFD. Coverage is
still expected to be generally isolated but the main focus this
afternoon may end up being the lake breeze, with the potential
for thunderstorms to develop overhead at ORD/MDW. Timing tweaks
may be needed with later forecasts as trends emerge. Any of the
thunderstorms that form are likely to produce outflow boundaries
which will make wind directions problematic, even if thunderstorms
do not directly impact the terminals. Additional thunderstorms
may develop as outflow boundaries interact with each other. The
threat of thunderstorms will diminish this evening.

Prevailing south/southeast winds are expected across the entire
area today, except when the lake breeze pushes inland, shifting
winds more easterly for ORD/MDW/GYY. Its possible wind directions
become south/southwest briefly this morning. Once the lake breeze
and any outflow boundaries dissipate this evening, light
southeast winds are expected tonight, possibly turning more
southerly by Thursday morning. cms

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...None.
&&

$$

Visit us at weather.gov/chicago

Follow us on Facebook, Twitter, and YouTube at:
www.facebook.com/NWSChicago
www.twitter.com/NWSChicago
www.youtube.com/NWSChicago

NWS LOT Office Area Forecast Discussion