Indiana’s Weather For Today

HEADLINES
– Above average highs through Friday.
– About one-half inch of rain from showers and storms Friday.
– Dry weekend, with temps closer to average.
– More active pattern next weekend. Maybe some strong storms Tuesday.

TODAY’S MAP

PRECIPITATION TOTALS

SEVERE RISK TUESDAY

NWS TECHNICAL DISCUSSION

Quiet weather conditions are expected to continue through the short
term period as surface high pressure remains centered over the
region. Latest radar and surface observations show a few showers
dissipating as they approach central Indiana from IL with
additional convection developing further west near a nocturnal
LLJ. A subsidence induced dry airmass will continue to inhibit any
potential for precipitation despite eastward propagation of
developing showers or storms to the west.

Look for another dry and warm day ahead due to a gradual increase in
heights aloft. Surface flow remaining out of the south/southeast
should also help to warm temperatures slightly. Expect highs to
generally be in the upper 70s to near 80F. Forecast soundings depict
a very dry airmass during the day with deep PBL mixing. The NBM
tends to poorly forecast dewpoints in these patterns that favor
strong diurnal mixing so CAMs were blended into the latest forecast.
RH values are likely going to fall as low as 20-30% this afternoon,
but light winds will keep any fire weather threat low.

Mostly clear skies and light winds favors efficient radiational
cooling again tonight. Look for temperatures to reach the low-mid
50s.

&&

.LONG TERM (Thursday through Tuesday)...
Issued at 217 AM EDT Wed Apr 23 2025

Thursday through Saturday...

A more active weather pattern will return late week into the early
weekend albeit with subtle waves in weak southwest flow aloft
instead of the strongly sheared systems we have been used to lately.
A cold front and most prominent of these upper waves looks like they
will move through Friday and Friday night. The best combo of deep
moisture and limited instability is expected to coincide with that
time frame and thus, this is when the best chances of rain will be.
Went anywhere from 60-90% at that time. PWATs could briefly reach
1.5 inches or the max moving average of ILX SPC sounding climatology
for late April. That said, PWATS may be slightly exaggerated with
the lack of a strong low level jet. Nonetheless, even PWATS
reasonably close to 1.5 inches along with some instability and the
front moving in would support widespread convection and a heavy rain
threat. There is the potential some locales could see rainfall
totals of an inch or more.

Chances of convection drop off from northwest to southeast on
Saturday as the front moves southeast. Modest cold advection will
also bring temperatures closer to normal from the well above normal
temperatures in store for Thursday and Saturday.

Saturday night through Tuesday night...

High pressure over the Great Lakes and a dry column are expected to
lead to clearing skies Saturday and Saturday night. Winds will
switch to the southeast on Sunday and southwest Monday as the high
shifts to the Appalachians and a low pressure system takes shape
over the Plains. This will allow for gradually moderating
temperatures Sunday and Monday with more convection possible by
Monday. By Tuesday, kinematics and synoptics become more organized
suggesting a better chance of the potential for strong or possibly
severe storms.

INDY SEVEN DAY FORECAST
Today: Mostly sunny. High 79.

Tonight: Mostly clear. Low 55.

Thursday: Mostly sunny. High 82.

Thursday Night: Clouds thicken. Spotty showers possible east and south of the city. Low 61.

Friday: Periods of showers and storms. High 75.

Friday Night: Periods of showers and storms. Low 54.

Saturday: Early morning clouds, then sun in the afternoon. High 66.

Saturday Night: Mostly clear. Low 48.

Sunday: Mostly sunny. High 71.

Sunday Night: Partly cloudy. Low 54.

Monday: Partly sunny. Spotty afternoon showers and storms. High 80.

Monday Night: Spotty showers and storms. Low 65.

Tuesday: Partly sunny. Spotty showers and storms. High 85.

NWS CHARTS FOR TODAY/TONIGHT