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Fishers, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Fishers IN
National Weather Service Forecast for: Fishers IN
Issued by: National Weather Service Indianapolis, IN
Updated: 4:15 pm EST Dec 30, 2024
 
This
Afternoon
This Afternoon: Partly sunny, with a high near 48. South wind around 5 mph.
Partly Sunny
Tonight

Tonight: Rain, mainly after 1am.  Low around 42. East southeast wind 5 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Chance Rain
then Rain
Tuesday

Tuesday: Rain.  Temperature rising to near 47 by 11am, then falling to around 40 during the remainder of the day. Southeast wind 9 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain
Tuesday
Night
Tuesday Night: Rain likely before 10pm, then a chance of rain and snow between 10pm and 2am, then a slight chance of snow after 2am.  Cloudy, with a low around 28. West northwest wind 14 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain/Snow
Likely
New
Year's
Day
New Year's Day: A 20 percent chance of snow.  Mostly cloudy, with a high near 33. West wind around 14 mph, with gusts as high as 23 mph.
Slight Chance
Snow
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 23. West wind 7 to 10 mph, with gusts as high as 18 mph.
Partly Cloudy
Thursday

Thursday: Partly sunny, with a high near 33. West wind 7 to 10 mph.
Partly Sunny
Thursday
Night
Thursday Night: A 40 percent chance of snow, mainly before 1am.  Mostly cloudy, with a low around 21. West southwest wind around 6 mph.
Chance Snow
Friday

Friday: Mostly sunny, with a high near 27. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Mostly Sunny
Hi 48 °F Lo 42 °F Hi 47 °F Lo 28 °F Hi 33 °F Lo 23 °F Hi 33 °F Lo 21 °F Hi 27 °F

 

This Afternoon
 
Partly sunny, with a high near 48. South wind around 5 mph.
Tonight
 
Rain, mainly after 1am. Low around 42. East southeast wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
 
Rain. Temperature rising to near 47 by 11am, then falling to around 40 during the remainder of the day. Southeast wind 9 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
Rain likely before 10pm, then a chance of rain and snow between 10pm and 2am, then a slight chance of snow after 2am. Cloudy, with a low around 28. West northwest wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
New Year's Day
 
A 20 percent chance of snow. Mostly cloudy, with a high near 33. West wind around 14 mph, with gusts as high as 23 mph.
Wednesday Night
 
Partly cloudy, with a low around 23. West wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday
 
Partly sunny, with a high near 33. West wind 7 to 10 mph.
Thursday Night
 
A 40 percent chance of snow, mainly before 1am. Mostly cloudy, with a low around 21. West southwest wind around 6 mph.
Friday
 
Mostly sunny, with a high near 27. West northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
 
Mostly clear, with a low around 15. West northwest wind around 9 mph.
Saturday
 
Sunny, with a high near 25.
Saturday Night
 
A 30 percent chance of snow. Mostly cloudy, with a low around 16.
Sunday
 
A 50 percent chance of snow. Mostly cloudy, with a high near 28.

 

Forecast from NOAA-NWS for Fishers IN.

Weather Forecast Discussion
077
FXUS63 KIND 302004
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
304 PM EST Mon Dec 30 2024

.KEY MESSAGES...

- Rain tonight and New Year`s Eve with a quarter inch to three
  quarters of an inch rainfall total and higher amounts possible
  mainly north of I-70.

- Noticeably colder temperatures will usher in the New Year.

- A chance for light snow late in the day Thursday into Thursday
  night

- Potential for a significant winter storm in the Midwest Sunday
  into Monday

- Bitter arctic cold in the week 2 period

&&

.SHORT TERM (This evening through Tuesday)...
Issued at 304 PM EST Mon Dec 30 2024

The Rest of the Afternoon...

GOES-16 visible imagery and obs are showing most of the stratocu
deck has eroded as was hinted at by only very shallow boundary layer
moisture showing up on the Hi-Res soundings. This and light winds
with a southerly component has allowed temperatures to climb around
10 degrees above normal in the lower 40s north to lower 50s south.
This lines up nicely with projected highs a few degrees warmer than
currently.

Tonight and Tuesday...

H20 vapor imagery was showing an upper wave across the Plains and
surface analysis was revealing a 997 millibar low centered over the
Kansas and Oklahoma border of the eastern parts of those states.
Models in good agreement that the surface low will track parallel to
and near the I-70 corridor on Tuesday. Deep moisture return of this
deepening negatively-tilted system will bring another slug of
widespread rain across central Indiana tonight into Tuesday. The
deepest moisture and best lift will occur near and north of the low
track and DESI grand ensemble 24 hour QPF ending 00z Wednesday
displays this. DESI 10%-90% QPF quartiles support around a quarter
to half an inch of 24 hour rainfall across areas south of I-70 and a
half an inch to an inch north of I-70. More rainfall will also lead
to more minor hydrology issues that will be covered in the hydrology
section. Meanwhile, BUFKIT soundings and critical thickness progs
support a mix and or change over to wet snow over northern sections
by the evening of New Year`s Eve and mostly at the start of the long
term.

Models are hinting at weak instability which will which could lead
to some embedded thunder overnight and New Year`s Eve. SPC Day1 is
on board with the forecast area outlooked for general thunder.
Meanwhile...tightening surface pressure gradient will also result in
gusty winds overnight into New Year`s Eve with BUFKIT lower boundary
layer momentum transfer to near 30 knots. The southerly winds will
bring one more day of well above normal temperatures. Despite the
increase in cloud cover, temperatures will stay up overnight with
lows only in the upper 30s to middle 40s. Meanwhile, the highs New
Year`s Eve will be mostly in the 40s but lower 50s are also
possible, especially southeast.

&&

.LONG TERM (Tuesday night through Monday)...
Issued at 304 PM EST Mon Dec 30 2024

Overview:

A complex, active and much colder weather scenario is expected to
unfold across Central Indiana over the next several days and into
next week. The long anticipated significant shift in the upper air
pattern will develop and help usher in the arctic air and wintry
precipitation potential. This cold will likely persist through at
least mid to late month before another shift back to seasonably mild
becomes possible.

New Years Eve Night...

A low pressure system will be in the process of moving through with
precipitation likely lingering during the early overnight hours.
Thermal profiles support a mix of rain and snow, but warm ground
temperatures should limit any snowfall accumulations. Precipitation
will decrease in coverage through the night as the system continues
to push east. Some high resolution models show a low chance for
light precipitation to persist through the overnight due to subtle
low-level moisture/forcing. Low POPs remain in the forecast for this
reason.

New Year Day through Thursday night

Winter arrives to begin the New Year as much colder air sweeps into
the area under northwest flow. However, this initial shot of cold
air will simply bring temperatures down to near normal values, but
given recent mild stretch of weather it will feel quite cold for any
outdoor New Year Day activities. Lingering low-level moisture
combined with a weak wave moving through the area may promote
isolated light snow showers or flurries during the day. No
accumulations or impacts are expected at this time.

Guidance shows another weak system moving through the area late in
the day Thursday into the overnight hours. Moisture return and
forcing will be weak, but cold air aloft should allow for minimal
snowfall accumulations. NBM POPs were very low and washed out the
precipitation signal due to how low QPF expected. POPs have been
increased using high-resolutions models. Minimal impacts will be
possible form this system.

Friday through Sunday...

Second round of cold moves in behind this short wave for the weekend
with even colder air to follow beyond the day 7 period. Highs will
only be in the 20s with lows in the teens and apparent temperatures
into single digits and possibly flirting with sub zero for brief
periods late in period. High pressure will keep weather conditions
quiet on Friday and Saturday.

Models continue to depict a significant winter storm in the Sunday
to Monday time frame across the Midwest and Ohio Valley. Model
differences continue with both the ECMWF/GFS ensembles having quite
a large discrepancy in surface low track. Ensemble surface low tracks
range from the TN/KY region all the way up to southern Wisconsin or
Michigan.

There is still plenty of time before this system develops and
models will come into better agreement over the coming days. All
precipitation types, including ice and sleet, are on the table
though this heavily depends on where the surface low track.
Disregard any snow and ice forecasts at this time but remain aware
and stay informed from reliable meteorologists as the week
progresses and details begin to clear by late this week.

Days 8 to 14...

Well below normal temperatures expected with high confidence during
this period. Coldest air of the winter season and we could see highs
struggle to leave the single digits and lows near or below zero. If
significant snowpack develops from the aforementioned winter storm,
even colder temperatures would be on the table in this period.
Long range models due show a piece of the polar vortex breaking
off and sinking into lower Canada, aiding in the development of
Hudson bay low and sustain northwesterly flow aloft driving the
cold air southward.

However, models do not show a classic pure meridional, cross polar
flow which is often needed for the extreme, record breaking cold.
However, at this time it does look like a good January arctic blast
that needs to be prepared for by everyone. Now would be a good time
to begin review winter storm and extreme cold checklists and getting
together recommended emergency supplies in anticipation of very cold
temperatures.

&&

.AVIATION (18Z TAF Issuance)...
Issued at 1001 AM EST Mon Dec 30 2024

Impacts:

- Mainly MVFR ceilings this afternoon with IFR possible early
  and likely after 11z Tuesday in rain

- Light winds becoming southeast tonight and increasing to
  around 10 knots after 05z with gusts to near 20 knots
  possible

Discussion:

A High Plains system will bring MVFR and worse conditions in
widespread rain overnight and Tuesday. Prior to that, there is medium
confidence for mostly MVFR but briefly IFR conditions early and IFR
conditions overnight and Tuesday.

Winds will be light southwest and switch to the southeast and
increase overnight with modest gusts possible.


&&

.HYDROLOGY...
Issued at 304 PM EST Mon Dec 30 2024

Rainfall amounts of around an inch and a half to over two inches
over central Indiana from Saturday evening through Sunday is causing
elevated levels on area rivers, with many locations on the main stem
rivers already surpassing or approaching action stage. Another
system (detailed in the short term discussion above) moving through
tonight and Tuesday should bring additional rainfall amounts of a
quarter inch to an inch, with probabilistic high end (1 in 10
chance) amounts of 1 to 1.5 inches. River forecasts already
indicating the development of minor flooding along lower portions of
the White River, for most points from Elliston on downstream from
there. MMEFS and HEFS guidance also indicate at least 30% chance of
minor flooding developing at Seymour on the East Fork White, with
lower probabilities but still some potential for minor flooding at a
few spots on the Wabash.

This additional rainfall is falling on wet, somewhat saturated
ground, so most of what falls will be heading straight into runoff.
This is likely to cause some nuisance flooding of lowland areas and
faster responding small streams and tributaries on Tuesday and into
Wednesday.

One other hydrologic note out in the far extended portion of the
forecast--Rapidly falling temperatures out at the end of the
forecast period and onward will cause potential for freeze up ice
jams to develop.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

SHORT TERM...MK
LONG TERM...Lashley/Melo
AVIATION...MK
HYDROLOGY...CP
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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