Whiteside County Airport (SQI) 15 Day Weather Forecast, Sterling United States
Current weather conditions and 15 day weather forecast for Whiteside County Airport in Sterling, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SQI
| 16 September 2026 Wed 19.4 ° C ( 66.9°F )  Overcast |
Feels Like : 17.3 ° C / 63.1°F Humidity : % 66 Pressure : 1026 mb Wind Speed : 15.1 kmph / 9.4 miles from E 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for Whiteside County Airport, Sterling, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 16 September 2026 Wed |  Patchy rain nearby |
17.1 ° C | 19.5 ° C | 18.4 ° C | % 82 | 16.9 km/h | 63% |
| 17 September 2026 Thu |  Light rain shower |
18.6 ° C | 23.9 ° C | 20.9 ° C | % 93 | 11.9 km/h | 90% |
| 18 September 2026 Fri | Overcast |
18.5 ° C | 25.7 ° C | 21.7 ° C | % 87 | 24.1 km/h | 81% |
| 19 September 2026 Sat | Overcast |
21 ° C | 26.4 ° C | 23 ° C | % 86 | 19.1 km/h | 74% |
| 20 September 2026 Sun | Light rain shower |
16.1 ° C | 21.2 ° C | 18.6 ° C | % 95 | 24.1 km/h | 93% |
| 21 September 2026 Mon | Light rain shower |
14.1 ° C | 22 ° C | 18.7 ° C | % 91 | 20.5 km/h | 79% |
| 22 September 2026 Tue |  Sunny |
15.7 ° C | 20.5 ° C | 18 ° C | % 83 | 16.9 km/h | 18% |
| 23 September 2026 Wed | Sunny |
14.8 ° C | 24 ° C | 19 ° C | % 81 | 23 km/h | 72% |
| 24 September 2026 Thu | Patchy rain nearby |
11.2 ° C | 18.3 ° C | 13.9 ° C | % 80 | 32 km/h | 76% |
| 25 September 2026 Fri | Sunny |
9.2 ° C | 18.7 ° C | 13.8 ° C | % 76 | 15.5 km/h | 8% |
| 26 September 2026 Sat | Sunny |
11.3 ° C | 21.9 ° C | 16.2 ° C | % 73 | 14 km/h | 8% |
| 27 September 2026 Sun | Overcast |
13.7 ° C | 24.4 ° C | 18.7 ° C | % 65 | 20.9 km/h | 10% |
| 28 September 2026 Mon | Sunny |
16.5 ° C | 28.9 ° C | 22.7 ° C | % 60 | 18 km/h | 4% |
| 29 September 2026 Tue | Overcast |
16.1 ° C | 25.5 ° C | 21 ° C | % 77 | 21.2 km/h | 76% |
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