Mount Hamill, Iowa Weather Forecast Discussion

051
FXUS63 KDVN 291638
AFDDVN
Area Forecast Discussion
National Weather Service Quad Cities IA IL
1138 AM CDT Mon Sep 29 2025
...Updated for 18z Aviation...
.KEY MESSAGES...
- Warmer than normal temperatures paired with quiet weather is
  expected through the work week.
- Models are trying to bring pops back to the area at the end of
  the period, but confidence in this occurring is low at this
  time.
&&
.SHORT TERM /THROUGH TUESDAY/...
Issued at 309 AM CDT Mon Sep 29 2025
The front that slowly moved through the area the last few days
has washed out. This front brought a wind shift to the area,
with slightly less humid air. Overall, this did not change what
we have experienced weather wise the last few days yesterday.
Today, high pressure remains in place across the area as we are
in what feels like late summer doldrums. This high pressure will
lead to plenty of sunshine again today. With dry conditions and
plenty of sun, we look to have another day of where we see a
large diurnal swing in temperatures. Highs in the upper 80s to
low 90s are possible once again. See climate section below for
record highs today and tomorrow.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Issued at 309 AM CDT Mon Sep 29 2025
Little change in the long term forecast as a blocking pattern
keeps us in high pressure. While the shape of the block looks
like it changes and attempts to break down into next weekend,
confidence in timing of the block breaking is low. Models are
pretty fast at breaking these ridges down. This means more high
pressure for us, along with more sun. We can expect more of the
same, where we have huge diurnal temperature ranges. Expect to
see swings of 30 degrees from overnight to the afternoon.
Later in the period, we may see the pattern change. NBM forecast
brings pops to the area at the end of the period. This is all
dependent on what happens to the blocking pattern. While we may
end up seeing some rain later in the period, my confidence in
this occurring is very low. Overall, not very impactful weather
through the long term.
&&
.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1135 AM CDT Mon Sep 29 2025
VFR conditions and light winds are expected to persist through
the period as high pressure remains in control. Patchy ground
fog is possible late tonight/early Tuesday morning (10z-13z)
near rivers and other low-lying areas, but is not anticipated
to affect the terminals.
&&
.CLIMATE...
Issued at 215 PM CDT Sun Sep 28 2025
Record highs for September 29th...
Burlington, IA.........99 in 1953 and previous years
Cedar Rapids, IA.......92 in 1953
Dubuque, IA............93 in 1953
Moline, IL.............99 in 1953
Record highs for September 30th...
Burlington, IA.........91 in 2023 and previous years
Cedar Rapids, IA.......94 in 2023
Dubuque, IA............89 in 1897
Moline, IL.............92 in 1952
&&
.DVN WATCHES/WARNINGS/ADVISORIES...
IA...None.
IL...None.
MO...None.
&&
$$
SHORT TERM...Gibbs
LONG TERM...Gibbs
AVIATION...McClure
CLIMATE...08

NWS DVN Office Area Forecast Discussion