Peotone Weather
National Weather Service Forecast for: Peotone, IL
Issued by: National Weather Service Chicago/Romeoville, IL
Updated: Mon, 20-May-2019 2:15am CDT

Peotone, IL
 
  Monday

Monday: Partly Sunny
Partly Sunny
Tuesday

Tuesday: Slight Chance Rain Showers
Slight Chance Rain Showers
Wednesday

Wednesday: Showers And Thunderstorms Likely then Mostly Sunny
Showers And T-Storms Likely then Mostly Sunny
Thursday

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

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

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

Sunday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
  Hi 60 °F Hi 62 °F Hi 78 °F Hi 82 °F Hi 81 °F Hi 75 °F Hi 71 °F
 
Overnight

Overnight: Chance Rain Showers
Chance Rain Showers
Monday
Night
Monday Night: Mostly Cloudy
Mostly Cloudy
Tuesday
Night
Tuesday Night: Showers And Thunderstorms Likely
Showers And T-Storms Likely
Wednesday
Night
Wednesday Night: Chance Showers And Thunderstorms
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
Chance Showers And T-Storms
Saturday
Night
Saturday Night: Mostly Cloudy then Slight Chance Showers And Thunderstorms
Mostly Cloudy then Slight Chance Showers And T-Storms
 
Lo 46 °F Lo 43 °F Lo 51 °F Lo 61 °F Lo 63 °F Lo 58 °F Lo 54 °F  

 

Overnight
 
A chance of rain showers. Mostly cloudy, with a low around 46. West northwest wind around 15 mph, with gusts as high as 25 mph.
Monday
 
Partly sunny, with a high near 60. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
Mostly cloudy, with a low around 43. East northeast wind 5 to 10 mph.
Tuesday
 
A slight chance of rain showers between 7am and 1pm. Mostly cloudy, with a high near 62. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tuesday Night
 
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 51. East southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Wednesday
 
Showers and thunderstorms likely before 7am. Mostly sunny, with a high near 78. Chance of precipitation is 70%.
Wednesday Night
 
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 61. Chance of precipitation is 40%.
Thursday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
Friday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Saturday
 
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 75.
Saturday Night
 
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54.
Sunday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 71.

 

Forecast from NOAA-NWS for Peotone, IL.

811
FXUS63 KLOT 200525
AFDLOT

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
1225 AM CDT Mon May 20 2019

.UPDATE...
825 PM CDT

A few isolated showers will continue along and south of I-80 this
evening, otherwise expect clouds to fill back in from the west
behind a decent spring cold front (30s upstream in MN this
evening). Cold advection will drive readings down into chiily 40s
area wide.

KMD

&&

.SHORT TERM...
259 PM CDT

Through Tonight...

Through the Late Afternoon:
Cold front is sweeping across the area approaching the 3pm hour.
Despite veering winds and dew points dropping behind the front,
there is sufficient forcing for post frontal showers primarily
south of I-80 after showers over northeast IL exit over the lake.
With better moisture and instability axis quickly shifting
eastward, threat for any additional isolated strong/severe storms
over the next hour or so will be primarily over northwest Indiana
counties. Main risk will be gusty to locally damaging winds. The
other concern is the strong west-southwest winds, gusting up to
35-40 mph over the next few hours. There have been a few gusts
into the 40-45 mph range over the past hour or so, but peak wind
gust speeds should gradually subside toward sunset.

This Evening-Overnight:
There will be a secondary cold front/wind shift to northwest along
with fairly stout cold advection. Out ahead of this, there`s a
pretty good signal on high-res/near-term guidance for widely
scattered light showers from I-80 and south, so carried low chance
category PoPs for this. Any lingering shower activity should end
by an hour or two after midnight. Breezy west-northwest winds and
cold advection will drive temperatures down into the 40s by early
Monday, so quite a change from the pleasant readings early this
evening.

Castro

&&

.LONG TERM...
120 PM CDT

Monday through Sunday...

The break following the current system looks to be relatively
short lived as another powerful shortwave emerges out into the
southern Plains later Monday into Monday night. This cyclone is
forecast to occlude with a deep vertically stacked forecast to
track due north across the central Plains Tuesday into Tuesday
night, with a Fujiwara type interaction depicted with another
closed low digging southeast into the Intermountain West.

The warm conveyor belt of this significantly occluded system is
forecast to arc out well ahead of the storm and move across the
CWA Tuesday night into Wednesday morning. Despite strong shear
profiles that should be in place, this activity is likely to
outrun the better instability with the warm sector likely pinched
off to our south, so thinking the severe threat will be minimal
with this activity Tuesday night.

Deep longwave trough is expected to remain anchored over the
western U.S. through the remainder of the long term period, with
this midweek cyclone expected to lift north to the northern Plains
before shearing eastward around the periphery of an unusually
strong early season sub-tropical ridge forecast to develop over
the southeast U.S. We should be on the periphery of the upper
ridge with nearby baroclinic zone probably fluctuating around the
region. Should get into the warm sector Wed into Thursday with a
period of above average temperatures. Temps and precip chances
heading into next weekend will hinge on the exact placement of
this boundary, which is going to be very hard to pin down with
much certainty this far out.

- Izzi

&&

.AVIATION...
For the 06Z TAFs...

1225 AM...Primary forecast concern is a lake breeze this afternoon
with mvfr cigs also a concern through mid morning.

Gusty west/northwest winds will continue to slowly turn northwest
before sunrise and then north/northwest later this morning. Speeds
and gusts will gradually lower but gusts into the mid/upper teen
kt range will still be possible through mid/late morning. Winds
may turn northerly by midday but a lake breeze will quickly move
inland this afternoon and guidance is favoring an earlier arrival.
Adjusted times a bit faster for ord/mdw and these may end up being
too slow. Winds will then remain northeast/east for the rest of
the period with speeds diminishing this evening.

Mvfr cigs are spreading across the area but there are holes with
some higher patches. Cigs lower into the 1-2kft range across WI
and northern IA. Its possible that cigs may lower further...still
mvfr...by morning and trends will be monitored. Cigs should slowly
lift to low vfr by mid/late morning with clouds scattering out
this afternoon. Increasing mid/high clouds tonight ahead of the
next chance of rain which will arrive around/just after 12z
Tuesday. cms

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...Small Craft Advisory...IL nearshore waters until 4 AM Monday.

     Small Craft Advisory...IN nearshore waters until 10 AM Monday.

&&

$$

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NWS LOT Office Area Forecast Discussion