Anna Weather Forecast
- 75
- 92
Chance Thunderstorms
- 74
- 91
Chance Thunderstorms
- 75
- 88
Thunderstorms Likely
- 75
- 90
Chance Thunderstorms
- 76
- 92
Chance Thunderstorms
- 77
- 92
Chance Thunderstorms
- 77
- 94
Mostly Sunny
Today 16 Jul Union
Sunny with a chance of Showers and Thunderstorms. Near steady temperature around 90. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.
Tonight 16 Jul Union
Mostly clear. Lows in the mid 70s. South Winds around 5 Mph.
Anna Temperature Statistics
July Temperature
Southern Illinois Airport (21.7 miles)
Lowest 2 July, 2025
66 °FAverage July
79.4 °FHighest 11 July, 2025
92.6 °F
Climate (2020–Present)
Southern Illinois Airport (21.7 miles)
Average Low 2020–2025
47.8 °FAverage 2020–2025
58 °FAverage High 2020–2025
68.6 °F