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Town of Speedway, INSpeedway, IN 7-Day Night Weather Forecast
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Speedway, IN Weather Forecast
Speedway, IN Weather Forecast Date: 1142 AM EDT Wed Aug 12 2026
The area/counties/county of: Marion, including the city of Indianapolis.or toggle through each period.
Rest of Today... Thunderstorms likely. Showers likely. Some thunderstorms May produce heavy rainfall. Highs in the lower 80s. Southwest winds 5 to 10 mph. Gusts up to 20 mph late this afternoon. Chance of rain 70%.
Tonight... Mostly cloudy with a chance of showers and thunderstorms through the late overnight, then partly cloudy with scattered showers with isolated thunderstorms toward daybreak. Some thunderstorms May produce heavy rainfall through the late overnight. Humid with lows in the upper 60s. West winds around 5 mph, becoming southeast toward daybreak. Chance of rain 50%.
Thursday... Mostly cloudy with scattered thunderstorms. Scattered showers through early afternoon, then numerous showers late in the afternoon. Humid with highs in the lower 80s. South winds around 5 mph. Chance of rain 70%.
Thursday Night... Showers and scattered thunderstorms. Humid with lows around 70. North winds around 5 mph. Chance of rain 90%.
Friday... Mostly cloudy with scattered showers through early afternoon, then partly cloudy late in the afternoon. Humid with highs in the mid 80s. Northeast winds around 5 mph. Chance of rain 50%.
Friday Night... Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Highs in the upper 80s. Chance of rain 20%.
Saturday... Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Highs in the upper 80s. Chance of rain 20%.
Saturday Night... Mostly clear. Lows in the lower 70s.
Sunday... Mostly sunny. A slight chance of showers and thunderstorms late in the afternoon. Highs in the upper 80s. Chance of rain 20%.
Sunday Night... Partly cloudy. A chance of showers and thunderstorms through the late overnight, then a slight chance of showers toward daybreak. Lows in the upper 60s. Chance of rain 40%.
Monday... Partly cloudy. Highs in the lower 80s.
Monday Night... Mostly clear. Lows in the lower 60s. Highs around 80.
POP = Probability of Precipitation
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