Peotone Weather
National Weather Service Forecast for: Peotone, IL
Issued by: National Weather Service Chicago/Romeoville, IL
Updated: Wed, 08-Jul-2020 5:15pm CDT

Peotone, IL
 
This
Afternoon
This Afternoon: Scattered Showers And Thunderstorms
Scattered Showers And T-Storms
Thursday

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

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

Saturday: Mostly Sunny
Mostly Sunny
Sunday

Sunday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Monday

Monday: Mostly Sunny
Mostly Sunny
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
 
Hi 91 °F ↓ Hi 92 °F ↓ Hi 86 °F Hi 89 °F Hi 86 °F Hi 86 °F Hi 91 °F  
 
Tonight

Tonight: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Friday
Night
Friday Night: Chance Showers And Thunderstorms then Mostly Clear
Chance Showers And T-Storms then Mostly Clear
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms then Partly Cloudy
Chance Showers And T-Storms then Partly Cloudy
Monday
Night
Monday Night: Mostly Clear
Mostly Clear
Tuesday
Night
Tuesday Night: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms
 
Lo 72 °F Lo 69 °F Lo 66 °F Lo 66 °F Lo 64 °F Lo 63 °F Lo 69 °F  

 

This Afternoon
 
Scattered showers and thunderstorms. Partly sunny. High near 91, with temperatures falling to around 89 in the afternoon. South wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Southeast wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Thursday
 
A chance of showers and thunderstorms. Partly sunny. High near 92, with temperatures falling to around 89 in the afternoon. Heat index values as high as 100. South southwest wind 0 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South southwest wind around 5 mph. Chance of precipitation is 50%.
Friday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 86. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday Night
 
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 66. Chance of precipitation is 30%.
Saturday
 
Mostly sunny, with a high near 89.
Saturday Night
 
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 66.
Sunday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Sunday Night
 
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 64.
Monday
 
Mostly sunny, with a high near 86.
Monday Night
 
Mostly clear, with a low around 63.
Tuesday
 
Mostly sunny, with a high near 91.
Tuesday Night
 
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 69.

 

Forecast from NOAA-NWS for Peotone, IL.

000
FXUS63 KLOT 082347
AFDLOT

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
647 PM CDT Wed Jul 8 2020

.SHORT TERM...
303 PM CDT

Through Thursday night...

Isolated to widely scattered thunderstorms are ongoing across the
parts of the area early this afternoon due to the presence of
little to no capping. This will continue to be the trend through
the afternoon before the activity abates with sunset. While no
severe weather is expected, the storms will produce some gusty
outflow winds in and near their vicinity. Storm motions are also
less than 10 mph, so some highly localized heavy down pours will
be possible.

The primary weather concern following this afternoons
thunderstorm activity is the threat for a period of strong to
possibly severe thunderstorms over the area late Thursday/Thursday
evening. Another hot and humid day is expected on Thursday, with
temperatures in the low 90s, and heat indices up around 100.
Similar to today, capping will remain weak, so increased cumulus
development is likely by late morning, with some isolated to
scattered thunderstorms possible during the afternoon. While deep
layer flow will remain weak during the day, thus limiting the
threat for more severe convection, it appears things could change
Thursday evening.

Going into Thursday evening forecast guidance continues to
advertise a convectively enhanced mid-level disturbance
approaching the area. An associated localized increase in the
deeper layer flow looks to potentially drive a more organized area
of thunderstorms across northern IL Thursday evening. Strong
damaging winds and heavy torrential downpours will be the primary
threats with these storms. The best timing for severe storms looks
to be roughly 5 to 10 PM Thursday evening. Some scattered showers
and storms could linger across the area Thursday night, but it
appears the threat of more substantial storms should wane
overnight.

KJB

&&

.LONG TERM...
239 PM CDT

Friday through Wednesday...

Gradually drier air is forecast to move into the area Friday
into Saturday under temporary northwest flow aloft resulting from
a short lived Great Lakes trough. A weak sheared short wave is
forecast in global guidance to scoot just west of the area
Saturday afternoon. Have most places dry though Saturday and that
very well could be the case Sunday, with the EC continuing to be
drier than the GFS in the backside of the trough depiction. Sunday
is forecast to have northerly surface winds and thus the
potential to have highs only at normal (mid 80s).

The forecast interest in mid-late next week will probably start
to increase due to the likelihood of at least an upstream heat
wave in the Plains to mid-Mississippi Valley that could build into
the Lower Great Lakes. The upper level ridge is forecast to build
eastward by most guidance into the midweek period, though as is
often the case with increasingly hot and humid airmasses, so will
the zone of active convection (e.g. "Ring of Fire"). Ensemble
forecast data suggest 850 mb temperatures may make a run toward
22- 24C+ with deterministic counterparts hinting at even higher,
which would translate to highs at least in the lower 90s. With
increasing humidity levels, apparent temperatures would be even
higher. Yet as previously hinted, active clusters of thunderstorms
love these patterns and may try to sneak into our area which,
while perhaps presenting other problems, may alleviate heat
concerns.

Again this is 6-10 days out, so plenty of time for things to shift.
So for now, something to keep an eye on given the time of year.

Borchardt/MTF

&&

.AVIATION...
For the 00Z TAFs...

647 PM...Primary forecast concern is thunderstorm chances
Thursday afternoon into Thursday evening.

Isolated thunderstorms will be possible for a few more hours this
evening as outflow boundaries collide...mainly south of the
terminals. Attention then turns to isolated to scattered activity
developing Thursday afternoon which is covered with prob mention.
There will likely be some thunderstorms around Thursday afternoon
but low confidence for coverage. Some refinement will likely be
needed to this time period as trends emerge. Similar to the past
few days...any storms that do form will produce outflows with
locally gusty/erratic winds. The better chance for thunderstorms
appears to be Thursday evening ahead of a cool front and weak low
pressure system. At least scattered coverage is expected and there
could be a broken line of storms by mid evening moving across the
terminals. Strong/gusty winds will also be possible with these
storms and if a line does form...wind directions would likely
favor a westerly direction.

After the outflows dissipate this evening...winds will likely
favor light southerly or light and variable tonight. Southerly
winds will increase into the 10kt range Thursday morning. Outside
of any thunderstorm winds/outflows...winds might tend to favor a
southeast direction Thursday evening but low confidence. 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