Currently: 20 °F. Overcast. (Weather station: Southern Illinois Airport, USA). See more current weatherGrand Tower Extended Forecast with high and low temperatures
2 Week Extended Forecast in Grand Tower, Illinois, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Fri Dec 5 |  | 42 / 18 °F | Mostly sunny. | 35 °F | 7 mph | ↑ | 44% | 0% | 0.00" | 3 (Moderate) | 6:58 am | 4:39 pm |
| Sat Dec 6 |  | 42 / 29 °F | Light snow early. Mostly cloudy. | 40 °F | 3 mph | ↑ | 75% | 22% | 0.17" | 0 (Low) | 6:59 am | 4:39 pm |
| Sun Dec 7 |  | 45 / 29 °F | Light mixture of precip. Overcast. | 34 °F | 15 mph | ↑ | 81% | 24% | 0.11" | 0 (Low) | 6:59 am | 4:39 pm |
| Mon Dec 8 |  | 36 / 19 °F | Sunny. | 34 °F | 1 mph | ↑ | 42% | 2% | 0.00" | 3 (Moderate) | 7:00 am | 4:39 pm |
| Tue Dec 9 |  | 47 / 20 °F | Cloudy. | 38 °F | 16 mph | ↑ | 51% | 0% | 0.00" | 0 (Low) | 7:01 am | 4:39 pm |
| Wed Dec 10 | | 55 / 37 °F | Cloudy. | 46 °F | 16 mph | ↑ | 48% | 5% | 0.00" | 0 (Low) | 7:02 am | 4:39 pm |
| Thu Dec 11 | | 62 / 26 °F | Overcast. | 60 °F | 13 mph | ↑ | 64% | 5% | 0.00" | 0 (Low) | 7:03 am | 4:39 pm |
| Fri Dec 12 | | 59 / 9 °F | Sunny. | 56 °F | 11 mph | ↑ | 26% | 3% | 0.00" | 3 (Moderate) | 7:03 am | 4:39 pm |
| Sat Dec 13 |  | 37 / 23 °F | Mostly cloudy. | 29 °F | 12 mph | ↑ | 25% | 4% | 0.00" | 0 (Low) | 7:04 am | 4:40 pm |
| Sun Dec 14 | | 46 / 29 °F | Sunny. | 41 °F | 8 mph | ↑ | 48% | 5% | 0.00" | 0 (Low) | 7:05 am | 4:40 pm |
| Mon Dec 15 | | 45 / 29 °F | Mostly sunny. | 38 °F | 11 mph | ↑ | 30% | 6% | 0.00" | 0 (Low) | 7:05 am | 4:40 pm |
| Tue Dec 16 | | 41 / 28 °F | Sunny. | 35 °F | 7 mph | ↑ | 24% | 3% | 0.00" | 0 (Low) | 7:06 am | 4:41 pm |
| Wed Dec 17 | | 41 / 29 °F | Mostly cloudy. | 33 °F | 13 mph | ↑ | 56% | 6% | 0.00" | 0 (Low) | 7:07 am | 4:41 pm |
| Thu Dec 18 | | 41 / 29 °F | Icy mix. Overcast. | 32 °F | 19 mph | ↑ | 80% | 53% | 0.14" | 0 (Low) | 7:07 am | 4:41 pm |
| Fri Dec 19 | | 47 / 30 °F | Light snow early. Morning clouds. | 40 °F | 11 mph | ↑ | 40% | 52% | 0.15" | 0 (Low) | 7:08 am | 4:42 pm |
| * Updated Friday, December 5, 2025 3:24:06 am Grand Tower time - Weather by CustomWeather, © 2025 | ||||||||||||