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Zionsville, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Zionsville IN
National Weather Service Forecast for: Zionsville IN
Issued by: National Weather Service Indianapolis, IN
Updated: 6:45 am EDT Jun 6, 2025
 
Today

Today: Isolated showers and thunderstorms after 3pm.  Areas of fog before 9am.  Otherwise, mostly cloudy, with a high near 78. Calm wind becoming west northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.
Areas Fog
then Isolated
T-storms
Tonight

Tonight: Scattered showers and thunderstorms before 11pm, then isolated showers between 11pm and 2am.  Cloudy, then gradually becoming partly cloudy, with a low around 62. North wind 3 to 6 mph.  Chance of precipitation is 30%.
Scattered
Showers
Saturday

Saturday: A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm.  Partly sunny, with a high near 79. East wind around 6 mph.  Chance of precipitation is 40%.
Partly Sunny
then Chance
Showers
Saturday
Night
Saturday Night: A chance of showers, then showers likely and possibly a thunderstorm after 8pm.  Mostly cloudy, with a low around 62. East southeast wind around 6 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Showers
Likely
Sunday

Sunday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 78. West wind 6 to 9 mph.  Chance of precipitation is 20%.
Slight Chance
T-storms
Sunday
Night
Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am.  Partly cloudy, with a low around 62. West southwest wind 6 to 8 mph.
Chance
T-storms
Monday

Monday: A 30 percent chance of showers and thunderstorms, mainly before 8am.  Mostly sunny, with a high near 78. West southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Chance
T-storms
Monday
Night
Monday Night: Partly cloudy, with a low around 57. West southwest wind 6 to 8 mph.
Partly Cloudy

Tuesday

Tuesday: Sunny, with a high near 76. West wind 6 to 11 mph, with gusts as high as 18 mph.
Sunny

Hi 78 °F Lo 62 °F Hi 79 °F Lo 62 °F Hi 78 °F Lo 62 °F Hi 78 °F Lo 57 °F Hi 76 °F

Hazardous Weather Outlook
 

Today
 
Isolated showers and thunderstorms after 3pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Tonight
 
Scattered showers and thunderstorms before 11pm, then isolated showers between 11pm and 2am. Cloudy, then gradually becoming partly cloudy, with a low around 62. North wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
 
A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers after 5pm. Partly sunny, with a high near 79. East wind around 6 mph. Chance of precipitation is 40%.
Saturday Night
 
A chance of showers, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 62. East southeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
 
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. West wind 6 to 9 mph. Chance of precipitation is 20%.
Sunday Night
 
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 62. West southwest wind 6 to 8 mph.
Monday
 
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 78. West southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Monday Night
 
Partly cloudy, with a low around 57. West southwest wind 6 to 8 mph.
Tuesday
 
Sunny, with a high near 76. West wind 6 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
 
Mostly clear, with a low around 56. West wind 3 to 7 mph.
Wednesday
 
Sunny, with a high near 80.
Wednesday Night
 
Mostly clear, with a low around 59.
Thursday
 
Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Zionsville IN.

Weather Forecast Discussion
443
FXUS63 KIND 061014
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
614 AM EDT Fri Jun 6 2025

.KEY MESSAGES...

- Patchy dense fog through around sunrise

- Scattered to numerous showers and some storms will return mainly
  later this afternoon into early evening. Isolated severe storms
  possible south

- Active weather continues into Saturday with heavy rain likely
  Saturday night into Sunday

- Cooler than normal with periodic rain early next week

&&

.SHORT TERM (Today and tonight)...
Issued at 207 AM EDT Fri Jun 6 2025

Early This Morning...

A few light showers will linger across the eastern forecast area as
an area of surface low pressure exits. Will keep some low PoPs east.
Otherwise, the main concern is fog. Areas of light fog are across
the northern forecast area, but cloud cover is extensive there.
Patchy, sometimes locally dense, fog is across the southern forecast
area.

With light winds and a lingering moist atmosphere, expect stratus
and fog to expand across the forecast area. The HRRR is showing a
good deal of dense fog developing north, but believe that cloud
cover will hamper that development. Will keep mention of
patchy/areas of fog in the forecast for now. Will also keep a close
eye on things in case conditions worsen more than expected.

This Morning into Early Afternoon...

Fog/stratus will gradually mix out during the early to mid morning.
Scattered to broken cumulus will then be around. Will keep skies
partly to mostly cloudy.

With the old surface boundary across the southern forecast area,
wouldn`t be surprised to see an isolated shower develop. Will have
some low PoPs there.

Enough sunshine will be around for highs to reach the upper 70s and
lower 80s most areas.

Mid Afternoon into Tonight...

Another impulse will move east in the nearly zonal flow aloft. This
will bring forcing and will interact with the old boundary across
southern Indiana to produce scattered to numerous showers and some
storms, mainly across the southern half of central Indiana.

There remain some timing questions with this wave, but at the moment
it appears that late afternoon into early evening look to have the
most coverage of rain, mainly south. Will have chance to likely PoPs
south, with lower to no PoPs north.

Shear will increase during the day across the south and will become
high enough that some isolated severe storms may occur, with
damaging winds the primary threat.

PoPs will diminish later this evening into the overnight as forcing
exits.

Lows tonight will be from around 60 to the mid 60s.

&&

.LONG TERM (Saturday through Thursday)...
Issued at 207 AM EDT Fri Jun 6 2025

Saturday Through Monday.

By Saturday morning the front that has brought active weather to the
area over the last few days will continue to remain stalled south of
the forecast area across Kentucky. This should help to limit the
rain chances across much of central Indiana with most models keeping
any QPF limited to just the southern portions of central Indiana
through the morning hours. Another upper level low is expected to
move through central Indiana Saturday night with additional
thunderstorms likely ahead of the low Saturday afternoon and
evening. Ahead of the low, stronger southerly flow will return as a
surface low undergoes cyclogenesis with good model agreement in a
period of heavy rain during the 00Z to 06Z timeframe just ahead of
the low. Model QPF varies on the exact details but a broad 0.5 to
1.5 inches is likely with a narrower swath of 2-3 inches.

A stronger upper level low will sink southeastward in the aftermath
of the Saturday system which will bring cooler air and renewed
lighter rain Sunday into Monday. There is some model differences
towards Monday as to where the jet stream will set up which will
impact where the better chances of precipitation will be. Confidence
is highest across the southern counties with ensemble probabilities
maximized towards the Ohio River.

Tuesday Through Thursday.

The upper level low will spin across the Great Lakes region into the
middle of the week which will help to keep temperatures slightly
below normal with higher than normal cloud cover. Periodic rain will
impact central Indiana but with no connection to Gulf air, amounts
will be light. High pressure begins to build going into Thursday as
the upper level low finally pushes off to the east with weak surface
winds and gradually warming temperatures to finish the work week.
Looking towards the weekend and beyond, the pattern begins to shift
more active again with above normal precipitation likely.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 613 AM EDT Fri Jun 6 2025

Impacts:

- Poor flying conditions early in the period

- Some showers around this afternoon along with potential for
  storms

Discussion:

IFR and potentially worse conditions will be ongoing at valid time.
Visibility will improve first followed by gradually improving
ceilings, with VFR conditions expected by early afternoon.
Additional fog may develop tonight, but confidence is not high
enough to include yet.

Scattered showers and some storms will return this afternoon, mainly
for the southern sites. Will use PROB30 for now, but once confidence
increases in timing, TEMPOs may be needed for KHUF/KBMG.

&&

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

$$

SHORT TERM...50
LONG TERM...White
AVIATION...50
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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