Indiana’s Weather For Today

HEADLINES
– Partly to mostly cloudy and not as chilly today.
– Showers early morning Friday, showers/storms in the evening.
– Nice weekend, with temps creeping back toward the average.
– Amazing 80s next week.

TODAY’S MAP

NWS TECHNICAL DISCUSSION

As mentioned in yesterday`s long term, an Omega Block pattern has
dictated central Indiana`s weather over the last week. However, this
will begin to change tonight onward as a strong supergeostrophic jet
streak is able to push through the periphery of the Omega Block
inducing height falls south of the upper level trough. This is
expected to lead to a low pressure system by Thursday night over the
Mid-Mississippi Valley, of which will help aid in progression of the
upper level pattern.

Initially, this will lead to a conducive corridor for precipitation
development Thursday night into Friday over the southern Ohio
Valley. Ensemble guidance has tightened on the low pushing through
northern KY tonight into tomorrow, with central Indiana located
within the eastward cold conveyor belt and the northern edge of the
precipitation shield. Isolated thunder within some weak elevated
instability is possible, but primarily moderate showers are expected
between 02-09Z tonight. There could be a narrow zone of 1"+_in far
southern central Indiana, but otherwise most areas south of I-70
should see between 0.33-0.66".

&&

.LONG TERM (Friday through Wednesday)...
Issued at 307 AM EDT Thu May 29 2025

The long term is expected to start off active as an upper trough
moving through the region promotes surface cyclogenesis near the
Ohio River. Precipitation chances remain elevated until the system
shifts east Friday night, but additional impulses pivoting across
the region will keep low chances for rain in the forecast at times
over the weekend. Available moisture and overall forcing is rather
subtle though which limits rain chances. POPs remain capped at 20%
or lower for these reasons. Temperatures are likely going to
moderate slightly over the weekend once the initial shortwave
shifting east allows for warmer 850mb temperatures to filter in.

Despite larger model spread towards the end of the extended,
guidance generally depicts upper ridging building over the central
CONUS. Large scale subsidence from the upper ridge will likely
provide quiet weather early next week. The main focus will be on the
potential for well above normal temperatures later next week as
the ridge axis nears. Some ensemble guidance is showing a highly
anomalous 500mb heights over the Ohio Valley late next week that
should create the potential for afternoon highs in the upper 80s
to near 90 depending on cloud cover and any precipitation.

INDY SEVEN DAY FORECAST
Today: Early morning showers. Breezy, with some sun in the afternoon. High 67.

Tonight: Mostly clear. Breezy in the evening. Low 46.

Tuesday: Mostly sunny. High 71.

Tuesday Night: Mostly clear. Low 51.

Wednesday: Mostly sunny. High 75.

Wednesday Night: Mostly clear. Low 56.

Thursday: Partly sunny. Spotty afternon shower chance. High 79.

Thursday Night: Spotty showers. Low 62.

Friday: Periods of showers and storms. High 74.

Friday Night: Periods of showers and storms. Low 51.

Saturday: Mostly cloudy early, then mostly sunny by afternoon. High 63.

Saturday Night: Mostly clear. Low 46.

Sunday: Partly sunny. High 66.

NWS CHARTS FOR TODAY/TONIGHT