Cedar Rapids, Iowa 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

394
FXUS63 KDVN 121949
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
249 PM CDT Tue Aug 12 2025

.KEY MESSAGES...

- Cooler and dry conditions tonight through Thursday.

- Heat and humidity returns Friday through this weekend, with
  precipitation chances increasing Sunday into early next week.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 243 PM CDT Tue Aug 12 2025

A mid-level trough and its associated surface cold front is currently
tracking west to east across central Iowa. This will contribute to
isolated showers and thunderstorms for much of the area through this
afternoon, however coverage will be limited and the persistent cloud
cover from this morning will somewhat limit instability. As such,
severe weather is generally not expected, although with PWATs
remaining near 1.5" and dewpoints in the low 70s that a few storms
may produce locally heavy rainfall. Areas in NW Illinois may
potentially see severe weather into this evening, with slightly
better forcing/shear present, although overall confidence for this
remains low. Skies will clear overnight as winds switch to NNW
behind the aforementioned front. The residual moisture ahead of an
approaching weak ridge combined with the light winds will bring
fog/low cloud cover chances just before sunrise. Any fog should
quickly burn off thereafter and a pleasant day will be in order for
Wednesday, with mostly sunny skies, highs near 80, and lower
humidity. Quiet conditions will persist into the evening.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
Issued at 243 PM CDT Tue Aug 12 2025

Cooler and dry conditions will persist into Thursday despite an
upper shortwave passing over the area. Its associated moisture
should remain north of the CWA. A relatively strong upper ridge will
build Friday into the weekend along with SSW surface flow and thus
both temperatures and dew points will increase. This weekend will
see highs in the low-to-mid 90s and heat indices of potentially 100-
105. The aforementioned ridge will stall over central Missouri
Sunday into Monday and much of the storm chances look to remain on
its periphery as shortwaves move around it, however widespread chance
PoPs have been retained in the forecast given the uncertainty this
far out. However, if the current pattern holds, chances would mostly
be confined to the late Monday into Tuesday time frame as the ridge
begins to break down.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1225 PM CDT Tue Aug 12 2025

MVFR CIGs will persist at or near all terminals through mid-
afternoon. VFR will return thereafter and continue until early
Wednesday morning before MVFR/IFR ceilings and visibilities are
possible just before sunrise. Skies will clear shortly after
sunrise and remain VFR through the end of the TAF period.
Generally light winds will continue, switching from west to
north into Wednesday behind a cold front.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...None.
IL...None.
MO...None.

&&

$$

SHORT TERM...AP
LONG TERM...AP
AVIATION...AP