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Franklin, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Franklin IN
National Weather Service Forecast for: Franklin IN
Issued by: National Weather Service Indianapolis, IN
Updated: 8:15 am EDT Jul 27, 2025
 
Today

Today: Showers and thunderstorms likely, mainly after 5pm.  Partly sunny, with a high near 89. West southwest wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Slight Chance
T-storms then
T-storms
Likely
Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 11pm.  Mostly cloudy, with a low around 75. West southwest wind around 5 mph becoming calm  in the evening.
Slight Chance
T-storms then
Mostly Cloudy
Monday

Monday: A 20 percent chance of showers and thunderstorms after 11am.  Partly sunny and hot, with a high near 92. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon.
Slight Chance
T-storms

Monday
Night
Monday Night: Partly cloudy, with a low around 76. Light west wind.
Partly Cloudy

Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 92. Calm wind.
Mostly Sunny
then Slight
Chance
T-storms
Tuesday
Night
Tuesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Light and variable wind.  Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday

Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny and hot, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Chance
T-storms

Wednesday
Night
Wednesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70. North northeast wind around 6 mph.
Chance
T-storms

Thursday

Thursday: A 30 percent chance of showers and thunderstorms, mainly before 2pm.  Partly sunny, with a high near 78. Northeast wind 7 to 10 mph.
Chance
T-storms

Hi 89 °F Lo 75 °F Hi 92 °F Lo 76 °F Hi 92 °F Lo 74 °F Hi 91 °F Lo 70 °F Hi 78 °F

Hazardous Weather Outlook
Heat Advisory
 

Today
 
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 89. West southwest wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
 
A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 75. West southwest wind around 5 mph becoming calm in the evening.
Monday
 
A 20 percent chance of showers and thunderstorms after 11am. Partly sunny and hot, with a high near 92. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
 
Partly cloudy, with a low around 76. Light west wind.
Tuesday
 
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind.
Tuesday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Light and variable wind. Chance of precipitation is 20%.
Wednesday
 
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
 
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. North northeast wind around 6 mph.
Thursday
 
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 78. Northeast wind 7 to 10 mph.
Thursday Night
 
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 62. Northeast wind 7 to 10 mph.
Friday
 
Mostly sunny, with a high near 78.
Friday Night
 
Partly cloudy, with a low around 60.
Saturday
 
Partly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Franklin IN.

Weather Forecast Discussion
065
FXUS63 KIND 271007
AFDIND

Area Forecast Discussion
National Weather Service Indianapolis IN
607 AM EDT Sun Jul 27 2025

.KEY MESSAGES...

- Afternoon and evening thunderstorms expected again today. Some may
produce very heavy rain.

- Dangerous heat continues into early next week with additional days
of greater than 100 degree heat indices likely, especially Monday
through Wednesday

- More widespread thunderstorms expected for the middle of next week

&&

.SHORT TERM (Today and tonight)...
Issued at 320 AM EDT Sun Jul 27 2025

Surface analysis early this morning shows Indiana caught between
strong high pressure over the southeastern states, and weaker low
pressure centered over the Dakotas. This was resulting in a very
warm and humid southerly flow across Central Indiana. Dew points
across Central Indiana remained in the mid to upper 70s. Aloft a
large upper high remained in place over the deep south. This also
was controlling Indiana`s weather, steering any forcing dynamics well
to the north across the Great Lakes.

A convective cluster was found near St. Louis, and was decaying as
it drifted east. At this time HRRR fails to bring in any of this
cluster to Central Indiana.

Today...

Another similar weather day will be in store as we have seen the
past few days. The hot and humid air mass remains in place across
Central Indiana. Forecast soundings this afternoon once again show
steep lapse rates with CAPE over 2600 J/KG and pwats very high, over
2.2 inches. CAMS once again shows convective development this
afternoon as diurnal heating is the trigger. The HRRR shows a window
of 16Z to 22Z for convective development across Central Indiana.
Thus just as we have seen on the past few days, chances for
afternoon and evening showers and thunderstorms is high, but
confidence for specific locations is much less so. The previous
boundary that has been lingering across the area has become much
less defined or perhaps dissolved at this point. Thus will try and
aim for a dry morning and again ramp up chances in the afternoon as
heating maxes out.

Will keep highs close to persistence due to the little change in air
mass. A heat advisory may still be needed across southern parts of
the forecast area, where temps could be highest.

Tonight...

Again, overall little change is expected tonight. The deep and broad
upper high pressure system will continue to dominate our weather,
steering any forcing dynamics well to the north. Evening convection
should slowly deteriorate as heating is lost, leading to another warm
and humid night. Overnight convection cannot be ruled out
completely, as that has been a signature of the past few days, but
no strong signal is present for this. Again, lows in the middle 70s
will be expected.

&&

.LONG TERM (Monday through Saturday)...
Issued at 320 AM EDT Sun Jul 27 2025

For the first part of the long term, deep upper ridging will settle
in across the Missouri and mid Mississippi Valleys, leading to hot
and humid conditions through midweek. Diurnally driven isolated
showers and storms will be possible the first part of the period,
with the ridging at least acting to limit storm coverage. Additional
heat headlines are likely for the start of the week as peak heat
indices will be in the 105 to 110 range.

By Wednesday, the ridge should flatten out while a cold front
extending off of an upper low over Hudson Bay drops into the region.
This front will bring the best chances for showers and storms during
the long term. While some timing differences remain within the
extended model guidance, a more pronounced threat for convection and
possibly a more organized risk for severe weather could impact the
region first Wednesday afternoon and night across the northern half
of the forecast area gradually transitioning south Thursday.
Damaging winds are again the likely primary concern based on model
soundings, with torrential rainfall and localized flooding as well
with PWATs at or just above 2 inches pooling immediately ahead of
the front.

Lingering storms will be possible through Thursday, but once the
boundary clears, much cooler as well as drier air will settle into
the region for at least a few days, providing a welcome break from
the heat. Confidence is growing in highs in the 70s for most areas
late week with lows in the upper 50s to low 60s.

&&

.AVIATION (12Z TAF Issuance)...
Issued at 607 AM EDT Sun Jul 27 2025

Impacts:

- High confidence for scattered thunderstorms today.
- Low confidence on specific locations and timing.
- Scattered convection this afternoon and evening, dissipating 01Z-
03Z

Discussion:

Little overall change to the ongoing TAF`s. Convection over IL and
MO as expected continues to dissipate upon approach to Central
Indiana.

Again, very limited change in the overall air mass and weather
situation across Central Indiana. As we have seen the past few days,
daily diurnal heating will lead to thunderstorm development across
Central Indiana mainly during the afternoon and evening hours.
Little overall change remains within the column, as it continues to
show steep lapse rates, abundant CAPE and high pwats.

Confidence is high for more showers and storms today, but confidence
is low for specific timing and locations. Thus a large window of
VCTS has been used for now. HRRR continues to suggest scattered TSRA
developing between 16Z and 01Z, with somewhat haphazard locations Any
TSRA that does strike a TAF site may produce brief MVFR to IFR
conditions.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from 10 AM this morning to 8 PM EDT this evening
for INZ021-028>031-035>049-051>057-060>065-067>072.

&&

$$

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






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