HEADLINES
– Isolated shower or storm is possible in the eastern third of the state this afternoon.
– Average high temp today. It will be above average and humid Friday through the weekend.
– Next general rain and storm chance is Tuesday.
TODAY’S MAP
NWS TECHNICAL DISCUSSION
After sunrise, any lingering fog should dissipate. Cumulus growth is expected by late morning as the boundary layer deepens and temperatures quickly climb into the 80s. Aloft, guidance shows a weak trough axis passing east of Indiana today which will leave us within a subsident atmosphere. Subsidence is weak, however, and there may be enough instability present to overcome it. Any shower or thunderstorm that develops will be isolated and weak. Another mitigating factor is dry mid-level air. Any aspiring updraft will need to survive dry air entrainment in order to grow into an actual thunderstorm. Shear is essentially non-existent, so any storm that makes it will be pulse-like in nature and short-lived. Locally heavy rainfall is possible in the strongest storms. Best chance of precip is across our eastern counties where subsidence is a bit less. Tonight looks to be similar to previous nights with clearing skies and patchy fog. Guidance shows a slightly drier boundary layer and so fog may be more limited than the previous night. Typically fog- prone locations stand to see the highest chance of patchy fog. && .LONG TERM (Thursday through Tuesday)... Issued at 254 AM EDT Wed Aug 6 2025 A return to hot and humid conditions appears likely early in the long term. Ensemble guidance is in good agreement showing ridge- building over the Plains spreading eastward by the weekend. At the surface, high pressure nearby should allow for a generally subsident atmosphere which will limit cloud cover and storm chances. Thankfully, the flow pattern aloft appears rather progressive, albeit slow, so the heat and humidity does not appear to stick around long. A trough approaches late in the weekend along with an attendant cold front. Unfortunately this also means showers and thunderstorms which may persist into the new week. Some members of guidance take a while to bring the front through...with it potentially lingering nearby into Wednesday. Flow aloft is weak and so we`re not expecting any organized severe threat. Our primary storm hazard may once again be heavy rain and localized flooding. Given uncertainty regarding the timing of the cold front, we will maintain chance PoPs through Wednesday. Temperatures will depend on the timing and strength of the front as well. A slower and weaker front will allow hot/humid weather to persist while the opposite is true of a stronger/faster front.
INDY SEVEN DAY FORECAST
Today: Patchy morning fog, then mostly to partly sunny. High 85.
Tonight: Mostly clear. Low 67.
Thursday: Mostly sunny. High 87.
Thursday Night: Mostly clear. Low 69.
Friday: Mostly sunny, hot and humid. High 89.
Friday Night: Mostly clear. Low 70.
Saturday: Mostly sunny. High 89.
Saturday Night: Mostly clear. Low 70.
Sunday: Mostly sunny. High 89.
Sunday Night: Mostly clear. Low 71.
Monday: Partly sunny. High 88.
Monday Night: Partly cloudy. Low 71.
Tuesday: Partly to mostly cloudy, with scattered showers and storms. High 87.
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