Speedway, IN Weather & Growing Conditions
This Afternoon
70°F
Slight Chance Light Rain
A slight chance of rain before 4pm. Cloudy. High near 70, with temperatures falling to around 63 in the afternoon. Southwest wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Slight Chance Light Rain | 13 mph SW | 22% |
| Tonight | 47°F | Mostly Cloudy | 6 to 10 mph WSW | 6% |
| Thursday | 62°F | Partly Sunny | 7 to 13 mph SW | 1% |
| Thursday Night | 44°F | Slight Chance Light Rain | 3 to 8 mph W | 23% |
| Friday | 54°F | Slight Chance Light Rain | 6 to 12 mph NNW | 15% |
| Friday Night | 36°F | Partly Cloudy | 5 to 10 mph NNW | 11% |
| Saturday | 53°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 1 to 5 mph NW | 0% |
| Sunday | 58°F | Sunny | 2 to 8 mph W | 0% |
| Sunday Night | 35°F | Mostly Clear | 2 to 6 mph WNW | 0% |
| Monday | 61°F | Sunny | 1 to 7 mph W | 0% |
| Monday Night | 39°F | Clear | 6 mph SW | 0% |
| Tuesday | 63°F | Sunny | 7 mph W | 2% |
| Tuesday Night | 39°F | Mostly Clear | 1 to 5 mph WNW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Speedway, IN
Last spring frost
Apr 12
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
6b
Explore more for Speedway, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Indianapolis Eagle Creek Ap, In (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.