Cairo, IL Weather
Cairo, IL climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 30's.
The warmest month of the year is July with an average maximum temperature of 89.70 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 25.60 degrees Fahrenheit.
Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 19 degrees Fahrenheit, and fairly limited during winter with an average difference of 17 degrees Fahrenheit.
The annual average precipitation at Cairo is 47.84 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 4.76 Inches.
Weather Data
Current Conditions
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Fog And Mist, 52°F | Humidity: 88% | Dewpoint: 48°F |
| Wind Speed: SE 5.8 MPH (5 KT) | Heat Index: 52°F | ||
| Barometer: 30.11 in. | Wind Chill: 50°F |
Weather Forecast
| Hi: 59°F | Today: Mostly cloudy. Highs in the upper 50s. South winds 5 to 10 mph. | |
| Lo: 49°F | ||
| Hi: 55°F | Tuesday: Mostly cloudy. A slight chance of showers in the morning...Then a chance of showers in the afternoon. Highs in the mid 50s. Southeast winds 10 to 15 mph. Chance of precipitation 50 percent. | |
| Lo: 41°F | ||
| Hi: 51°F | Wednesday: Partly sunny. Highs in the lower 50s. West winds 10 to 15 mph. | |
| Lo: 35°F | ||
| Hi: 45°F | Thanksgiving day: Mostly cloudy. Highs in the mid 40s. | |
| Lo: 31°F | ||
| Hi: 49°F | Friday: Partly sunny. Highs in the upper 40s. | |
| Lo: 31°F | ||
| Hi: 51°F | Saturday: Mostly clear. Lows in the lower 30s. Highs in the lower 50s. | |
| Lo: 39°F |
Moon, Sunrise and Sunset
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Moon Phase: First Quarter Moon | Civil Twilight: 6:14 AM CST |
Sunrise: 6:42 AM CST |
| Sunset: 4:42 PM CST |
Civil Twilight: 5:10 PM CST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 41.1 | 47.4 | 57.5 | 68.5 | 77.8 | 86.2 | 89.7 | 87.5 | 81.0 | 70.5 | 56.7 | 45.7 | 67.5 |
| Mean °F | 33.4 | 38.6 | 48.4 | 59.1 | 68.6 | 76.8 | 80.5 | 78.2 | 71.0 | 59.9 | 47.9 | 37.9 | 58.4 |
| Min °F | 25.6 | 29.8 | 39.3 | 49.6 | 59.4 | 67.3 | 71.2 | 68.8 | 60.9 | 49.2 | 39.1 | 30.1 | 49.2 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 3.21 | 3.55 | 4.39 | 4.74 | 4.76 | 4.15 | 4.38 | 3.63 | 3.04 | 3.43 | 4.40 | 4.16 | 47.84 |

