Lewisburg Weather Forecast
- 73
- 93
Slight Chance Thunderstorms
- 73
- 94
Chance Rain Showers
- 70
- 91
Chance Thunderstorms
- 65
- 82
Partly Sunny
- 63
- 83
Mostly Sunny
- 64
- 86
Mostly Sunny
Today 17 Aug Menard
Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 90s. Light and variable Winds. Chance of rain 20 percent. Heat index Values up to 102.
Tonight 17 Aug Menard
Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent.
Lewisburg Temperature Statistics
August Temperature
Springfield - Abraham Lincoln Capital Airport (11.2 miles)
Lowest 3 August, 2025
55.7 °FAverage August
75.8 °FHighest 15 August, 2025
91.9 °F
Climate (2020–Present)
Springfield - Abraham Lincoln Capital Airport (11.2 miles)
Average Low 2020–2025
44.9 °FAverage 2020–2025
55.1 °FAverage High 2020–2025
64.9 °F