Saint Peters Cemetery Illinois Weather Forecast Discussion

183
FXUS63 KLOT 112000
AFDLOT
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
300 PM CDT Sat Oct 11 2025
.KEY MESSAGES...
- Other than the potential for a few light showers late Tuesday
  (20-30% chance), mainly dry and seasonable conditions are
  expected the next several days.
- The pattern turns more active late next week with increasing
  rain chances (30-40%).
&&
.DISCUSSION...
Issued at 300 PM CDT Sat Oct 11 2025
The quiescent weather pattern continues today with the local
area on the southwest periphery of broad surface high pressure.
Aloft, the upper ridge axis has also shifted east into the
region with the two closed lows meander well to our east and
southeast along the east coast. Some lake effect clouds paired
with onshore flow have held down temperatures in the low to mid
60s across much of the Chicago metro this afternoon, with
farther inland areas still managing to warm into the upper 60s
to lower 70s.
Winds take on a southeasterly direction on Sunday which should
help temperatures warm up a bit more than seen today with highs
in the low to mid 70s for much of the area. While the lake
remains quite warm (temps in the 60s), locales along the
immediate lakeshore in Illinois may still only remain mainly in
the mid-upper 60s for highs as a reinforcing lake breeze pushes
inland in the afternoon.
A strong upper level short wave is progged to lift across the
northern Plains into Ontario Sunday night into Monday. An
associated surface cold front may lead to increased shower
development west of the area. The effective front stalls out
prior to reaching our area as well, though a few elevated light
showers/sprinkles may drift into northwest Illinois prior to
dissipating Monday morning. Monday looks like the warmest day of
the several days with highs in the 70s areawide.
Winds eventually flop northeasterly on Tuesday (due to a
combination of a frontal passage / lake breeze / influence of
the surface high). This may be paired with a few showers late in
the day into the evening, though confidence remains generally
low and overall favors very light amounts if it does occur.
Dry weather then likely continues midweek as upper level ridging
builds back across the region paired with expanding surface
high pressure. However, ensemble guidance continues to trend
toward a more active patter returning for the end of next week
with increasing shower chances Friday into Saturday (30-40%).
Something to keep an eye on over the coming days.
Petr
&&
.AVIATION /18Z TAFS THROUGH 00Z MONDAY/...
Issued at 1213 PM CDT Sat Oct 11 2025
No major forecast concerns for this TAF period as high pressure
will remain overhead. However, lake effect clouds will continue
to ooze inland this afternoon and may briefly result in a
period of MVFR ceilings. Given that recent satellite trends show
the clouds trying to scatter out have maintained VFR ceilings
with a SCT027 to account for the MVFR potential. That said, the
lake effect clouds will scatter this evening with just high
cirrus for Sunday.
Otherwise, expect northeast winds around 10-12 kts this
afternoon to ease closer to 5 kts overnight with directions
become more southeasterly. Speeds will once again increase on
Sunday morning but should remain in the 10-12 kt range though
some occasional upper teen gusts may be seen across northwestern
IL near RFD.
Yack
&&
.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...None.
&&
$$
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NWS LOT Office Area Forecast Discussion