Franklin, Indiana 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Franklin IN
National Weather Service Forecast for:
Franklin IN
Issued by: National Weather Service Indianapolis, IN |
Updated: 10:45 am EDT Jul 9, 2025 |
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Today
 Chance T-storms
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Tonight
 Slight Chance T-storms then Partly Cloudy
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Thursday
 Mostly Sunny then Slight Chance T-storms
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Thursday Night
 Slight Chance T-storms then Partly Cloudy
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Friday
 Chance T-storms
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Friday Night
 Chance T-storms
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Saturday
 Chance T-storms then Showers Likely
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Saturday Night
 Showers Likely then Chance T-storms
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Sunday
 Slight Chance Showers then Chance T-storms
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Hi 83 °F |
Lo 69 °F |
Hi 86 °F |
Lo 69 °F |
Hi 87 °F |
Lo 72 °F |
Hi 88 °F |
Lo 70 °F |
Hi 86 °F |
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Hazardous Weather Outlook
Today
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A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Calm wind becoming south southwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. |
Tonight
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A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 69. Light and variable wind. |
Thursday
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A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Light west wind. |
Thursday Night
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A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Calm wind. |
Friday
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A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. Light south southwest wind. Chance of precipitation is 30%. |
Friday Night
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A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. South wind 3 to 5 mph. Chance of precipitation is 30%. |
Saturday
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A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 88. Southwest wind 6 to 9 mph. Chance of precipitation is 70%. |
Saturday Night
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Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. West southwest wind 5 to 7 mph. Chance of precipitation is 60%. |
Sunday
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A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. West wind around 6 mph. Chance of precipitation is 30%. |
Sunday Night
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A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. |
Monday
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A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. |
Monday Night
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A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. |
Tuesday
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A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. |
Forecast from NOAA-NWS
for Franklin IN.
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Weather Forecast Discussion
654
FXUS63 KIND 091302
AFDIND
Area Forecast Discussion
National Weather Service Indianapolis IN
902 AM EDT Wed Jul 9 2025
.KEY MESSAGES...
- Scattered storms today with best chances across the southeast
half of central Indiana
- Generally very warm/humid through this weekend...greatest rain/
storm chances on Saturday...not as humid Sunday
&&
.FORECAST UPDATE...
Issued at 902 AM EDT Wed Jul 9 2025
Surface analysis late this morning shows a weak frontal boundary
across Central Indiana, stretching from near FWA to IND and HUF.
Radar shows an area of showers and isolated thunderstorms west of
Indiana and another area just west of Vincennes. These echos were
weakening with their eastward progression. Water Vapor showed an
upper trough in place stretching from SE MI to Srn IL and Arkansas.
A subsidence line was building eastward on the backside of the
trough, and was building across NW Indiana early this morning. Winds
remained light and variable across the forecast area due to the weak
and poorly defined pressure gradient across the area. Dew point
temperatures remained quite high in the middle 60s to around 70.
Models suggest the frontal boundary will make slow progression
southeastward through the afternoon. This will keep the southern and
eastern parts of the forecast area within the warm sector, favorable
for convection, through much of the day. Clearings and diminishing
rain chances will also slowly build from the northwest as the
subsidence line pushes southeast and the upper trough exits. HRRR
still keeps a few isolated showers across the area this afternoon,
but best confidence will remain across the previously stated south
and east. Highs will once again reach the middle to upper 80s.
Overall forecast remains in good shape and only minor adjustments
will be made.
T
&&
.SHORT TERM (Today and Tonight)...
Issued at 245 AM EDT Wed Jul 9 2025
Remnant pockets of showers continue to drift across the northern
Wabash Valley southwest into eastern Illinois in tandem with an
upper level wave and a weak surface front. The airmass remained dry
below 10kft over much of the region with mid level clouds
increasing. 06Z temperatures ranged from the upper 60s to the mid
70s.
The aforementioned upper wave and surface boundary will track across
the region today and provide at least the opportunity for scattered
convective development with a moist and unstable airmass across
central Indiana. As this shifts off to the east this evening... weak
high pressure will expand into the area with slightly drier air.
Cannot rule out scattered showers continuing to develop across the
northwest half of the forecast area through much of the morning but
the current ACARS sounding at KIND highlights the problems in the
lower levels of the atmosphere that will likely limit broader
convective development over the next several hours. Mainly...the air
remains dry up into the 600-500mb layer with negligent instability.
Much of the better forcing aloft is displaced to the north across
lower Michigan as well. Will maintain low pops through late morning
but most locations will remain dry due to the extenuating factors
above.
Low level moisture will improve this afternoon along and ahead of
the front as it moves into the forecast area and this will aid in
MLCAPES peaking at near 2000 j/kg. But the forcing aloft will remain
weak with little to near shear as well. This will likely keep
convection in a scattered and disorganized state focused especially
across the southeast half of the forecast area ahead of the
boundary. Once again as has been the case for the last several
days...primary threats from convection this afternoon will be brief
and localized heavy rainfall and cloud to ground lightning.
Convection will linger into the evening across eastern counties
before departing to the east as weak high pressure expands south
from the western Great Lakes. Despite dry air advecting in
overnight...potential for patchy fog will exist in the predawn hours
Thursday as winds lighten to near calm levels and skies clear.
Temps...low level thermals support mid 80s across the forecast area
today. With the arrival of a slightly drier airmass tonight...lows
will fall into the mid and upper 60s.
&&
.LONG TERM (Thursday through Tuesday)...
Issued at 245 AM EDT Wed Jul 9 2025
Overall typical midsummer weather is expected through the long term
as generally very warm and humid conditions with scattered diurnally-
driven convection...surround a couple rather brief less humid and
mainly rain-free periods. Synoptically, North America will be more
trough dominant, although only along the Canadian border and
north...while any attempts of the southern subtropical ridge to
regain momentum is suppressed to the southwestern CONUS through at
least this weekend. In between these features, weak zonal flow will
carry embedded small weaknesses into the Midwest through Saturday...
before light southwest flow tries to quietly build the ridge towards
Indiana, bringing a marginally-hot set-up around next Monday and
onward.
This will all translate to more early mornings usually starting in
the upper 60s/lower 70s, with higher humidity capping diurnal
spreads up to around 85-90F. Maximum afternoon heat indices usually
in the upper 80s to mid-90s...may approach 100F on Saturday, and
again at the end of the long term. Widely scattered afternoon/
evening showers and thunderstorms will be the rule most days...while
occasional modest wind shear may promote a few stronger storms. Best
opportunity for greater coverage of rain/storms will be around the
Saturday period when a more amplified northern wave should drag a
weak cold front across the region. Milder and less humid conditions
will hopefully accompany subtle drops in heights/H850 temperatures/
precipitable water both at the start of the long term and then
through the latter half of the weekend, when several northern zones
may observe a tandem of overnights dropping into the mid-60s.
Indianapolis` normal max/min will maintain the year`s peak values
through July 22...85/67.
&&
.AVIATION (12Z TAF Issuance)...
Issued at 546 AM EDT Wed Jul 9 2025
Impacts:
- Brief visibility restrictions this morning in showers and storms,
mainly at KHUF and KLAF
- Scattered thunderstorms continue for this afternoon
- Fog possible predawn Thursday
Discussion:
An area of convection has developed over the northern Wabash Valley
early this morning and is likely to impact KLAF and possibly KHUF as
well over the next few hours. Additional scattered storms are
expected as the day progresses as an upper level wave and weak
frontal boundary move into the region. Convection will shift east of
the terminals by this evening with clouds diminishing as drier air
advects into the region from the northwest.
Winds will be light through the forecast period...gradually
transitioning to W/NW this evening. Patchy fog is likely to develop
late tonight and early Thursday.
&&
.IND WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
UPDATE...Puma
SHORT TERM...Ryan
LONG TERM...AGM
AVIATION...Ryan
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