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Peoria, Illinois 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for 2 Miles E West Peoria IL
National Weather Service Forecast for: 2 Miles E West Peoria IL
Issued by: National Weather Service Lincoln, IL
Updated: 4:25 pm CDT Jun 26, 2025
 
This
Afternoon
This Afternoon: Isolated showers and thunderstorms.  Mostly sunny, with a high near 94. Heat index values as high as 102. South southwest wind around 10 mph, with gusts as high as 17 mph.  Chance of precipitation is 20%.
Isolated
T-storms

Tonight

Tonight: Scattered showers and thunderstorms, mainly between 1am and 4am.  Partly cloudy, with a low around 75. South southwest wind 6 to 8 mph, with gusts as high as 16 mph.  Chance of precipitation is 30%.
Scattered
T-storms

Friday

Friday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 87. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Chance
T-storms

Friday
Night
Friday Night: Partly cloudy, with a low around 71. West wind around 6 mph becoming calm  in the evening.
Partly Cloudy

Saturday

Saturday: Mostly sunny, with a high near 91. Calm wind.
Mostly Sunny

Saturday
Night
Saturday Night: Mostly clear, with a low around 72. Calm wind.
Mostly Clear

Sunday

Sunday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 92. Calm wind becoming south southwest around 6 mph in the afternoon.
Mostly Sunny
then Chance
T-storms
Sunday
Night
Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
Monday

Monday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87.
Chance
T-storms

Hi 94 °F Lo 75 °F Hi 87 °F Lo 71 °F Hi 91 °F Lo 72 °F Hi 92 °F Lo 72 °F Hi 87 °F

Heat Advisory
Hazardous Weather Outlook
 

This Afternoon
 
Isolated showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 102. South southwest wind around 10 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.
Tonight
 
Scattered showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 75. South southwest wind 6 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Friday
 
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. West southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Friday Night
 
Partly cloudy, with a low around 71. West wind around 6 mph becoming calm in the evening.
Saturday
 
Mostly sunny, with a high near 91. Calm wind.
Saturday Night
 
Mostly clear, with a low around 72. Calm wind.
Sunday
 
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
 
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Monday
 
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
 
Partly cloudy, with a low around 67.
Tuesday
 
Sunny, with a high near 86.
Tuesday Night
 
Partly cloudy, with a low around 66.
Wednesday
 
Sunny, with a high near 87.
Wednesday Night
 
Mostly clear, with a low around 66.
Thursday
 
Sunny, with a high near 87.

 

Forecast from NOAA-NWS for 2 Miles E West Peoria IL.

Weather Forecast Discussion
306
FXUS63 KILX 261939
AFDILX

Area Forecast Discussion...Updated
National Weather Service Lincoln IL
239 PM CDT Thu Jun 26 2025

.KEY MESSAGES...

- The heat wave will persist into the upcoming weekend for central
  and southeast IL. The highest heat index readings of 100 to 107
  degrees will occur this afternoon and early evening, but will
  remain in the upper 90s to around 100 degrees each afternoon
  Friday through Sunday. The Heat Advisory goes through 7 pm today
  across central IL, and extended until 7 pm Friday from Danville
  to Charleston/Mattoon and Effingham southeast.

- Rain chances will be minimal through tonight (20-30% areal
  coverage). Chance of showers and thunderstorms will be higher on
  Friday and Monday with frontal boundary moving through.

&&

.DISCUSSION...
Issued at 235 PM CDT Thu Jun 26 2025

Continued the heat advisory until 7 pm today for central IL and
extended the heat advisory until 7 pm Friday from Danville to
Charleston/Mattoon to Effingham southeast. Heat indices should
peak from 100-107F through 7 pm with temps in the low to mid 90s
and dewpoints in the low to mid 70s. Heat indices are expected to
peak 100-105F in southeast IL on Friday afternoon and peak in the
90s over the remained of central IL. The high heat and humidity to
linger this weekend as heat indices peaking in the mid to upper
90s on Sat afternoon (highs near 90F) and 97-103F on Sunday
afternoon (highs in the lower 90s).

Radar mosaic shows isolated convection over central IL from the
IL river southeast to I-72 and southeast of I-70, lifting slowly
northeast. Unstable tropical airmass with ML CAPES 2-3k j/kg and
SB CAPES 3500-4200 j/kg. PW values of 1.6-1.8 inches. The main
synoptic frontal boundary was near the MN/IA border and southern
WI with 1009 mb low pressure near the MN/IA/SD border. SPC Day1
continues marginal risk of severe storms for damaging winds
northern half of CWA into early evening along with locally heavy
rainfall, similar to yesterday. As low pressure tracks to
northeast of Door County WI by 12Z/7 am Fri it will pull a cold
front se toward nw IL. This to bring chance of showers and
thunderstorms to the IL river valley late tonight into fri
morning. The front moves into northern cWA Fri night and then
lifts back into northern IL during Saturday. This to keep a chance
of convection around into this weekend, though chances will be
rather low over our area. More unstable tropical airmass lingers
over southeast IL Sat where higher pops will be.

Sunday we will see tropical air mass lift further northward over
IL so temps and dewpoints along with associated Heat Indices to be
a bit higher. Have 30-40% chance of convection Sunday afternoon
and evening. Cold front to then push back se over IL on Monday
likely bringing showers and chance of thunderstorms. We are
currently not in an outlook for severe storms by SPC on Monday
afternoon/evening but will need to be watched with front moving
into an unstable air mass. Highs Monday in the mid to upper 80s
with Lawrenceville around 90F where heat indices peak in upper 90s
in far southeast IL Mon afternoon. After a chance of convection in
southeast IL Monday evening, expect dry conditions returning
overnight Monday night through Wed night as weak high pressure
settles eastward into IL during mid next week. More seasonable
temps and humidity levels for early July return middle of next
week with highs in the mid to upper 80s and lows in the mid to
upper 60s.

07

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 7 PM CDT this evening for ILZ027>031-036>038-
040>045-047>055-061.

Heat Advisory until 7 PM CDT Friday for ILZ046-056-057-062-063-066>068-071>073.

&&

$$
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