textproduct: Indianapolis

KEY MESSAGES

- Generally dry weather and a steady warming trend mid to late week

- Peak heat indices around to slightly above 100 degrees each afternoon mid-late week

- Chances for showers and storms return Friday through the weekend, primarily during the afternoon and evening

DISCUSSION (Today through Tuesday)

Issued at 304 AM EDT Wed Jul 15 2026

High pressure will continue to influence the weather over the region through at least Thursday, bringing hot and precipitation free conditions. Highs over the next few days are expected to reach the low to mid 90s with heat indices near to slightly above 100 degrees. The stagnant and suppressed air will also lead to greater ozone and lower air quality for parts of Indiana today.

The high pressure will start to break down by the end of the week, and models are showing better agreement on an upper wave bringing good chances for showers and storms Friday. Aloft, NW flow will set up with a surface low prompting additional precip chances Saturday. After a brief break in PoPs, models show another system to move through early to mid next week with a decent chance of cooler temps moving in behind it.

AVIATION (06Z TAF Issuance)

Issued at 152 AM EDT Wed Jul 15 2026

Impacts:

- Variable visibility potentially to IFR/worse at KLAF 09-12Z

Discussion:

Outside of overnight/early morning fog potential, VFR conditions are expected.

With similar conditions to last night, expect fog to develop at KLAF after during the early morning hours. Visibility will likely vary significantly at times, so will go with MVFR with BCFG mention. Cannot rule out fog at KHUF/KBMG, but feel odds are not high enough to mention yet.

Elevated smoke will be across the area, thickest north. Otherwise some cumulus will pop up again Wednesday. Winds will remain less than 7kt and will vary in direction.

IND WATCHES/WARNINGS/ADVISORIES

Heat Advisory from noon today to 8 PM EDT this evening for INZ021-029>031-036>042-046>049.