| 18:15 CST |  Overcast | -23°C / -9°F | -26°C / -15°F | 77% | 1021 mb (30.15 in) | Calm | - | 10SM |
| | KDVL 090015Z AUTO 00000KT 10SM OVC016 M23/M26 A3015 RMK AO1 |
| 17:55 CST |  Partly Cloudy | -22°C / -8°F | -26°C / -15°F | 70% | 1021 mb (30.15 in) | NNE 7 kph (NNE 4.6 mph) | - | 10SM |
| | KDVL 082355Z AUTO 02004KT 10SM SCT016 M22/M26 A3014 RMK AO1 11200 21220 412001270 57010 |
| 17:35 CST |  Clear | -22°C / -8°F | -26°C / -15°F | 70% | 1021 mb (30.15 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KDVL 082335Z AUTO 01006KT 10SM CLR M22/M26 A3015 RMK AO1 |
| 17:15 CST |  Clear | -22°C / -8°F | -24°C / -11°F | 84% | 1021 mb (30.15 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KDVL 082315Z AUTO 01006KT 10SM CLR M22/M24 A3015 RMK AO1 |
| 16:55 CST |  Clear | -22°C / -8°F | -26°C / -15°F | 70% | 1021 mb (30.15 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KDVL 082255Z AUTO 01004KT 10SM CLR M22/M26 A3015 RMK AO1 |
| 16:35 CST |  Clear | -22°C / -8°F | -24°C / -11°F | 84% | 1021 mb (30.15 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KDVL 082235Z AUTO 01005KT 10SM CLR M22/M24 A3015 RMK AO1 |
| 16:15 CST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1021 mb (30.15 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KDVL 082215Z AUTO 36006KT 10SM CLR M21/M24 A3015 RMK AO1 |
| 15:55 CST |  Clear | -21°C / -6°F | -24°C / -11°F | 77% | 1021 mb (30.15 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KDVL 082155Z AUTO 36006KT 10SM CLR M21/M24 A3016 RMK AO1 |
| 15:35 CST |  Clear | -21°C / -6°F | -23°C / -9°F | 84% | 1021 mb (30.15 in) | N 9 kph (N 5.8 mph) | - | 10SM |
| | KDVL 082135Z AUTO 35005KT 10SM CLR M21/M23 A3016 RMK AO1 |
| 15:15 CST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1021 mb (30.15 in) | N 13 kph (N 8.1 mph) | - | 10SM |
| | KDVL 082115Z AUTO 35007KT 10SM CLR M20/M23 A3015 RMK AO1 |
| 14:55 CST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1022 mb (30.18 in) | N 11 kph (N 6.9 mph) | - | 10SM |
| | KDVL 082055Z AUTO 35006KT 10SM CLR M20/M23 A3017 RMK AO1 57010 |
| 14:35 CST |  Clear | -20°C / -4°F | -22°C / -8°F | 84% | 1022 mb (30.18 in) | NNW 9 kph (NNW 5.8 mph) | - | 10SM |
| | KDVL 082035Z AUTO 34005KT 10SM CLR M20/M22 A3017 RMK AO1 |
| 14:15 CST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1022 mb (30.18 in) | NNW 6 kph (NNW 3.5 mph) | - | 8SM |
| | KDVL 082015Z AUTO 34003KT 8SM CLR M20/M23 A3018 RMK AO1 |
| 13:55 CST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1022 mb (30.18 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KDVL 081955Z AUTO 33003KT 10SM CLR M20/M23 A3018 RMK AO1 |
| 13:35 CST |  Partly Cloudy | -20°C / -4°F | -23°C / -9°F | 77% | 1022 mb (30.18 in) | NNW 7 kph (NNW 4.6 mph) | - | 5SM |
| | KDVL 081935Z AUTO 33004KT 5SM FEW003 M20/M23 A3019 RMK AO1 |
| 13:15 CST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1022 mb (30.18 in) | Calm | - | 5SM |
| | KDVL 081915Z AUTO 00000KT 5SM CLR M20/M23 A3019 RMK AO1 |
| 12:55 CST |  Clear | -20°C / -4°F | -23°C / -9°F | 77% | 1023 mb (30.21 in) | Calm | - | 9SM |
| | KDVL 081855Z AUTO 00000KT 9SM CLR M20/M23 A3020 RMK AO1 |
| 12:35 CST |  Clear | -21°C / -6°F | -23°C / -9°F | 84% | 1023 mb (30.21 in) | Calm | - | 7SM |
| | KDVL 081835Z AUTO 00000KT 7SM CLR M21/M23 A3020 RMK AO1 |
| 12:15 CST |  Clear | -22°C / -8°F | -23°C / -9°F | 92% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KDVL 081815Z AUTO 00000KT 10SM CLR M22/M23 A3020 RMK AO1 |
| 11:55 CST |  Clear | -22°C / -8°F | -26°C / -15°F | 70% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KDVL 081755Z AUTO 00000KT 10SM CLR M22/M26 A3020 RMK AO1 11220 21270 57003 |
| 11:35 CST |  Clear | -22°C / -8°F | -24°C / -11°F | 84% | 1023 mb (30.21 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KDVL 081735Z AUTO 35004KT 10SM CLR M22/M24 A3021 RMK AO1 |
| 11:15 CST |  Clear | -23°C / -9°F | -24°C / -11°F | 92% | 1023 mb (30.21 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KDVL 081715Z AUTO 35004KT 10SM CLR M23/M24 A3021 RMK AO1 |
| 10:55 CST |  Clear | -23°C / -9°F | -27°C / -17°F | 70% | 1023 mb (30.21 in) | NNW 6 kph (NNW 3.5 mph) | - | 6SM |
| | KDVL 081655Z AUTO 34003KT 6SM CLR M23/M27 A3022 RMK AO1 |
| 10:35 CST |  Clear | -24°C / -11°F | -24°C / -11°F | 100% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KDVL 081635Z AUTO 35003KT 10SM CLR M24/M24 A3023 RMK AO1 |
| 10:15 CST |  Clear | -24°C / -11°F | -30°C / -22°F | 58% | 1024 mb (30.24 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KDVL 081615Z AUTO 35003KT 10SM CLR M24/M30 A3023 RMK AO1 |
| 09:55 CST |  Clear | -24°C / -11°F | -25°C / -13°F | 91% | 1024 mb (30.24 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KDVL 081555Z AUTO 33003KT 10SM CLR M24/M25 A3023 RMK AO1 |
| 09:35 CST |  Clear | -25°C / -13°F | -29°C / -20°F | 69% | 1024 mb (30.24 in) | NNW 6 kph (NNW 3.5 mph) | - | 10SM |
| | KDVL 081535Z AUTO 34003KT 10SM CLR M25/M29 A3023 RMK AO1 |
| 09:15 CST |  Clear | -26°C / -15°F | -27°C / -17°F | 91% | 1023 mb (30.21 in) | NNW 7 kph (NNW 4.6 mph) | - | 10SM |
| | KDVL 081515Z AUTO 34004KT 10SM CLR M26/M27 A3022 RMK AO1 |
| 08:55 CST |  Clear | -27°C / -17°F | -30°C / -22°F | 76% | 1023 mb (30.21 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KDVL 081455Z AUTO 35003KT 10SM CLR M27/M30 A3021 RMK AO1 57007 |
| 08:35 CST |  Clear | -27°C / -17°F | -31°C / -24°F | 69% | 1023 mb (30.21 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KDVL 081435Z AUTO 36004KT 10SM CLR M27/M31 A3020 RMK AO1 |
| 08:15 CST |  Clear | -26°C / -15°F | -28°C / -18°F | 83% | 1023 mb (30.21 in) | N 7 kph (N 4.6 mph) | - | 10SM |
| | KDVL 081415Z AUTO 35004KT 10SM CLR M26/M28 A3020 RMK AO1 |
| 07:55 CST |  Partly Cloudy | -26°C / -15°F | -29°C / -20°F | 76% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KDVL 081355Z AUTO 00000KT 10SM FEW110 M26/M29 A3020 RMK AO1 |
| 07:35 CST |  Clear | -26°C / -15°F | -27°C / -17°F | 91% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KDVL 081335Z AUTO 00000KT 10SM CLR M26/M27 A3021 RMK AO1 |
| 07:15 CST |  Partly Cloudy | -26°C / -15°F | -30°C / -22°F | 69% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KDVL 081315Z AUTO 00000KT 10SM FEW110 M26/M30 A3021 RMK AO1 |
| 06:55 CST |  Clear | -26°C / -15°F | -28°C / -18°F | 83% | 1023 mb (30.21 in) | N 6 kph (N 3.5 mph) | - | 10SM |
| | KDVL 081255Z AUTO 35003KT 10SM CLR M26/M28 A3021 RMK AO1 |
| 06:35 CST |  Clear | -26°C / -15°F | -33°C / -27°F | 52% | 1023 mb (30.21 in) | Calm | - | 4SM |
| | KDVL 081235Z AUTO 00000KT 4SM CLR M26/M33 A3022 RMK AO1 |
| 06:15 CST |  Clear | -25°C / -13°F | -25°C / -13°F | 100% | 1023 mb (30.21 in) | Calm | - | 10SM |
| | KDVL 081215Z AUTO 00000KT 10SM CLR M25/M25 A3022 RMK AO1 |
| 05:55 CST |  Clear | -26°C / -15°F | -31°C / -24°F | 63% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 081155Z AUTO 00000KT 10SM CLR M26/M31 A3023 RMK AO1 11240 21270 57007 |
| 05:35 CST |  Clear | -26°C / -15°F | -31°C / -24°F | 63% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 081135Z AUTO 00000KT 10SM CLR M26/M31 A3023 RMK AO1 |
| 05:15 CST |  Partly Cloudy | -26°C / -15°F | -27°C / -17°F | 91% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 081115Z AUTO 00000KT 10SM FEW120 M26/M27 A3023 RMK AO1 |
| 04:55 CST |  Clear | -27°C / -17°F | -32°C / -26°F | 63% | 1024 mb (30.24 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KDVL 081055Z AUTO 25003KT 10SM CLR M27/M32 A3023 RMK AO1 |
| 04:35 CST |  Clear | -26°C / -15°F | -30°C / -22°F | 69% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 081035Z AUTO 00000KT 10SM CLR M26/M30 A3024 RMK AO1 |
| 04:15 CST |  Clear | -26°C / -15°F | -26°C / -15°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 081015Z AUTO 00000KT 10SM CLR M26/M26 A3024 RMK AO1 |
| 03:55 CST |  Clear | -27°C / -17°F | -34°C / -29°F | 51% | 1024 mb (30.24 in) | SW 6 kph (SW 3.5 mph) | - | 10SM |
| | KDVL 080955Z AUTO 23003KT 10SM CLR M27/M34 A3024 RMK AO1 |
| 03:35 CST |  Clear | -26°C / -15°F | -26°C / -15°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 080935Z AUTO 00000KT 10SM CLR M26/M26 A3025 RMK AO1 |
| 03:15 CST |  Clear | -25°C / -13°F | -31°C / -24°F | 57% | 1024 mb (30.24 in) | SSE 6 kph (SSE 3.5 mph) | - | 10SM |
| | KDVL 080915Z AUTO 20003KT 10SM CLR M25/M31 A3025 RMK AO1 |
| 02:55 CST |  Clear | -26°C / -15°F | -26°C / -15°F | 100% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 080855Z AUTO 00000KT 10SM CLR M26/M26 A3025 RMK AO1 57003 |
| 02:35 CST |  Clear | -26°C / -15°F | -31°C / -24°F | 63% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 080835Z AUTO 00000KT 10SM CLR M26/M31 A3025 RMK AO1 |
| 02:15 CST |  Clear | -26°C / -15°F | -27°C / -17°F | 91% | 1024 mb (30.24 in) | Calm | - | 10SM |
| | KDVL 080815Z AUTO 00000KT 10SM CLR M26/M27 A3025 RMK AO1 |
| 01:55 CST |  Clear | -26°C / -15°F | -33°C / -27°F | 52% | 1024 mb (30.24 in) | W 7 kph (W 4.6 mph) | - | 10SM |
| | KDVL 080755Z AUTO 27004KT 10SM CLR M26/M33 A3025 RMK AO1 |
| 01:35 CST |  Clear | -26°C / -15°F | -26°C / -15°F | 100% | 1024 mb (30.24 in) | W 9 kph (W 5.8 mph) | - | 10SM |
| | KDVL 080735Z AUTO 27005KT 10SM CLR M26/M26 A3025 RMK AO1 |
| 01:15 CST |  Clear | -25°C / -13°F | -33°C / -27°F | 47% | 1024 mb (30.24 in) | SSW 6 kph (SSW 3.5 mph) | - | 10SM |
| | KDVL 080715Z AUTO 25003KT 10SM CLR M25/M33 A3025 RMK AO1 |
| 00:55 CST |  Clear | -26°C / -15°F | -27°C / -17°F | 91% | 1025 mb (30.27 in) | Calm | - | 10SM |
| | KDVL 080655Z AUTO 00000KT 10SM CLR M26/M27 A3026 RMK AO1 |
| 00:35 CST |  Clear | -25°C / -13°F | -32°C / -26°F | 52% | 1025 mb (30.27 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KDVL 080635Z AUTO 27003KT 10SM CLR M25/M32 A3026 RMK AO1 |
| 00:15 CST |  Clear | -26°C / -15°F | -28°C / -18°F | 83% | 1025 mb (30.27 in) | W 6 kph (W 3.5 mph) | - | 10SM |
| | KDVL 080615Z AUTO 27003KT 10SM CLR M26/M28 A3026 RMK AO1 |