textproduct: Indianapolis

KEY MESSAGES

- Dry yet pleasant fall weather continues through much of next week with above normal afternoon highs

- Patchy fog will occur in low lying areas late night/early mornings through Sunday morning

- A wetter pattern may take shape for the Halloween weekend

DISCUSSION (Today through Friday)

Issued at 210 AM EDT Sat Oct 24 2026

Quiet weather with above normal temperatures will continue through much of next week, with rain chances returning around Halloween.

Early This Morning through Sunday...

Subsidence from upper ridging and surface high pressure will continue to provide dry conditions through Sunday. Winds will remain light. High clouds will spill across the ridge into the area at times.

Look for highs around 70 to the lower 70s today and in the lower to middle 70s Sunday. Lows will be in the 40s (did cut guidance for lows tonight in favored cold areas given what has happened recently).

Monday through Wednesday...

An upper trough across southern Canada will help suppress the upper ridge south on Monday, which will allow a surface cold front to sag into central Indiana on Monday. The front won't get much farther south as upper flow will become near parallel to it. Generally only high level moisture will be available, and upper support is nowhere nearby. Thus, dry conditions will persist.

Additional upper waves moving through the flow, mainly to the northwest of the area, will bring the front back north and out of the area Tuesday into Wednesday. Again, little to no local forcing and no moisture will keep the area dry.

Highs will be in the lower to middle 70s Monday and Wednesday. Behind the front on Tuesday, highs will be around 70 to the lower 70s.

Thursday onward...

Weak upper ridging will linger into Friday, keeping a front to the northwest and continuing the dry conditions with above normal temperatures.

Uncertainty increases for Halloween as a broad upper trough begins to slowly approach the area. Some guidance has showers in the area on Halloween while others keep them west until later Saturday night. Will stick with blended guidance's chance PoPs but with low confidence. Temperatures look to remain above normal.

AVIATION (12Z TAF Issuance)

Issued at 612 AM EDT Sat Oct 24 2026

Impacts:

- Patchy ground fog through 13Z

Discussion:

Outside of some patchy ground fog through 13Z VFR conditions are expected through the TAF period. Skies will remain mostly clear to partly cloudy with only passing cirrus aloft. Winds will generally remain easterly to southeasterly at 5kt or less with near calm winds for portions of the overnight tonight.

IND WATCHES/WARNINGS/ADVISORIES

None.