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Muscatine, Iowa 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Muscatine IA
National Weather Service Forecast for: Muscatine IA
Issued by: National Weather Service Quad Cities, IA/IL
Updated: 6:33 pm CDT Jul 25, 2025
 
Tonight

Tonight: A 50 percent chance of showers and thunderstorms.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm.  New rainfall amounts between a half and three quarters of an inch possible.
Chance
T-storms and
Patchy Fog
Saturday

Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Some of the storms could produce heavy rainfall.  Patchy fog before 8am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain
and Patchy
Fog
Saturday
Night
Saturday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm  in the evening.
Chance
T-storms
Sunday

Sunday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 92. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.
Slight Chance
T-storms
Sunday
Night
Sunday Night: Mostly clear, with a low around 76.
Mostly Clear

Monday

Monday: Sunny, with a high near 94.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 75.
Mostly Clear

Tuesday

Tuesday: A 30 percent chance of showers after 1pm.  Mostly sunny, with a high near 93.
Mostly Sunny
then Chance
Showers
Tuesday
Night
Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70.
Partly Cloudy
then Chance
T-storms
Lo 73 °F Hi 86 °F Lo 74 °F Hi 92 °F Lo 76 °F Hi 94 °F Lo 75 °F Hi 93 °F Lo 70 °F

Hazardous Weather Outlook
Flood Watch
Flash Flood Warning
 

Tonight
 
A 50 percent chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
 
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Some of the storms could produce heavy rainfall. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
 
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm in the evening.
Sunday
 
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 76.
Monday
 
Sunny, with a high near 94.
Monday Night
 
Mostly clear, with a low around 75.
Tuesday
 
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 93.
Tuesday Night
 
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.
Wednesday
 
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Wednesday Night
 
Mostly cloudy, with a low around 62.
Thursday
 
Mostly sunny, with a high near 78.
Thursday Night
 
Partly cloudy, with a low around 58.
Friday
 
Mostly sunny, with a high near 79.

 

Forecast from NOAA-NWS for Muscatine IA.

Weather Forecast Discussion
082
FXUS63 KDVN 252352
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
652 PM CDT Fri Jul 25 2025

...00z Aviation Update...

.KEY MESSAGES...

- Chance of showers and storms today mainly south of Hwy 20,
  increasing coverage tonight into Saturday AM with heavy
  rainfall and localized flooding potential particularly in
  counties along and south of I-80. Gusty winds are also
  possible with a Marginal Risk or level 1 of 5 for severe
  weather for parts of the area.

- Heat builds back in Sunday through Tuesday, potentially
  dangerous, but there will also be episodes of storms making
  for a challenging temperature forecast and low confidence on
  the spatial extent and magnitude of the heat (day to day
  evaluation needed).

&&

.SHORT TERM /THROUGH SATURDAY/...
Issued at 145 PM CDT Fri Jul 25 2025

GOES visible satellite imagery showed several compact cyclonic
circulations (MCVs) in a corridor stretching from southeast
Iowa into northern Kansas. These low/mid-level impulses were
positioned atop a weak quasi-stationary front as analyzed by
WPC, extending from the Lower Great Lakes back to the southwest
into the Central Plains.

Not a big air mass difference on either side of the boundary
with very humid conditions over the region (dewpoints in the
low/mid 70s). SPC mesoanalysis does show a rather tight north
to south gradient in PWATs from ~1.25" across the north to 2.25"
in the central to southern forecast area. This enhanced
corridor of deep moisture is forecast to gradually shift
northward through tonight into Saturday AM, ahead of the
approaching MCVs. With the anomalously moist air mass -- near
the 98-99th percentile per the NAEFS climatology -- and
expectation for slow storm motions around 10-20 mph at times per
MBE vectors, some locally very heavy rainfall is possible over
the next ~24 hours. Additionally, high freezing levels of 15-16
kft will promote efficient warm rain processes with potential
for peak hourly rain rates around 2-2.5" in the strongest
storms.

Forecasting the most likely placement of the heaviest rain is a
bit tricky, but based on a CAM model consensus counties along
and especially south of I-80 appear to have the highest chances.
The latest HREF LPMM QPF does show potential for localized
bullseyes of 3-4" with 0.5 - 1.5" amounts being more common, and
then a rapid drop off in amounts along/north of Highway 30.
Decided to issue a Flood Watch for counties along/south of I-80
due to the potential for localized flash flooding with 3 hr FFG
values in the 1.5 to 2.5" range. Of course the thick
vegetation/mature crops can handle a lot of water this time of
year, so areas most susceptible will be urban locations and
other low-lying flood prone areas.

For timing, scattered convection is anticipated to develop with
the lead MCV this afternoon and evening, likely to track
through the central portion of the outlook area. More widespread
slow moving showers and storms are then expected tonight, again
with the highest chances south of Highway 30. This activity
will likely linger into Saturday AM and it`s possible scattered
storms redevelop during the afternoon. SPC has continued with
the Marginal Risk (level 1 of 5) for severe storms, mainly for
locally damaging winds. And WPC has a Slight Risk (level 2 of 4)
for flash flooding.

&&

.LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/...
Issued at 320 AM CDT Fri Jul 25 2025

Saturday night and Sunday models support some amplification of the
upper ridge overhead. The building heights aloft and lack of
any appreciable forcing may limit storm coverage and support
more diurnally induced widely scattered activity. This upper
ridge and increasing heights aloft will also bring a return of the
heat. With corn sweat in prime-time, we`ll see some very humid
to oppressive conditions with dew points likely in the mid/upper
70s and possibly 80 in spots. This will bring the potential for
dangerous heat index readings exceeding 100 to around 105 degrees
across much of the area, provided convection and cloud cover stay
limited to allow highs to top out in the upper 80s to around 90.

Monday through Wednesday, the pattern looks to become quite
conducive for periodic storm complexes with an attendant heavy rain
and severe weather threat, as the ridge is suppressed further
to the south allowing our region to reside in the action zone or
`ring of fire` with main belt of westerlies strengthening and
shifting southward through the Northern Plains and Upper Midwest.
This timeframe will also hold the potential for a continuation
of dangerous heat and humidity, but this will likely be a day to
day evaluation because of the uncertainty with temperatures given
the active pattern and potential for rounds of convection.

Beyond mid-week though there are signs pointing to a cooler and
somewhat drier pattern for late next week, as we see a bout
of northwest flow attendant to an eastern Canada low.

&&

.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 649 PM CDT Fri Jul 25 2025

A mix of VFR level clouds and VSBYs, with embedded passing MVFR
to IFR showers and thunderstorms this evening. We may have a
late evening to early Sat morning lull before more clusters of
showers and thunderstorms move in acrs portions of the area late
tonight toward dawn Sat morning. Light and variable sfc winds
regime, wit bouts of a southerly component into the overnight.
Higher variable gusts possible of course, near any passing
storm. Away from the precip, there may be areas of MVFR to IFR
VSBY fog late tonight into early Sat morning. Sat afternoon may
trend back to mainly VFR with an isolated storm possible.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Flood Watch through Saturday evening for IAZ063>068-076>078-
     087>089-098-099.
IL...Flood Watch through Saturday evening for ILZ009-015>018-
     024>026-034-035.
MO...Flood Watch through Saturday evening for MOZ009-010.

&&

$$

SHORT TERM...Uttech
LONG TERM...McClure
AVIATION...12
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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