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Weather sensor information for Interstate 90 is as follows:
| Nearest Town | Weather Station Name | Milepost | Date / Time | Surface Status | Surface Temp | Precip | Intensity | Wind Avg | Wind Gust | Dir | Dewpoint | Humidity | Air Temp | Visibility |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sheridan | Montana State Line | 0.1 | Sep 10, 2026, 10:26 PM | None | None | 4.3 mph (7.0 km/h) | 5.6 mph (9.0 km/h) | NW | 32.0°F (0.0°C) | 24% | 69.8°F (21.0°C) | > 1/2 mi (> 0.8 km) | ||
| Sheridan | Pompey Creek | 35.3 | Sep 10, 2026, 10:26 PM | Dry | 71.8°F (22.1°C) | None | None | 4.3 mph (7.0 km/h) | 9.3 mph (15.0 km/h) | N | 28.4°F (-2.0°C) | 16% | 78.8°F (26.0°C) | > 1/2 mi (> 0.8 km) |
| Sheridan | Sheridan/Johnson County Line | 41.33 | Sep 10, 2026, 10:26 PM | None | None | 1.9 mph (3.0 km/h) | 8.7 mph (14.0 km/h) | SE | 26.6°F (-3.0°C) | 18% | 73.4°F (23.0°C) | |||
| Buffalo | Piney Creek Interchange | 44.7 | Sep 10, 2026, 10:26 PM | Dry | 75.6°F (24.2°C) | None | None | 6.8 mph (11.0 km/h) | 8.7 mph (14.0 km/h) | NW | 30.2°F (-1.0°C) | 26% | 66.2°F (19.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Kearny Divide | 45.33 | Sep 10, 2026, 10:26 PM | 1.2 mph (2.0 km/h) | 8.1 mph (13.0 km/h) | SE | N/A | 64.4°F (18.0°C) | > 1/2 mi (> 0.8 km) | |||||
| Buffalo | Indian Creek Road | 83.3 | Sep 10, 2026, 10:26 PM | Dry | 74.3°F (23.5°C) | None | None | 10.6 mph (17.0 km/h) | 13.7 mph (22.0 km/h) | NW | 21.2°F (-6.0°C) | 15% | 73.4°F (23.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Dead Horse | 91.5 | Sep 10, 2026, 10:26 PM | Wet | 83.7°F (28.7°C) | None | None | 0.0 mph (0.0 km/h) | 0.0 mph (0.0 km/h) | E | N/A | N/A | > 1/2 mi (> 0.8 km) | |
| Gillette | Mile Marker 108 | 108 | Sep 10, 2026, 10:26 PM | Dry | 71.4°F (21.9°C) | None | 9.3 mph (15.0 km/h) | 11.8 mph (19.0 km/h) | SE | 23.0°F (-5.0°C) | 15% | 73.4°F (23.0°C) | > 1/2 mi (> 0.8 km) | |
| Sundance | Inyan Kara | 170.5 | Sep 10, 2026, 10:26 PM | None | 8.7 mph (14.0 km/h) | 10.6 mph (17.0 km/h) | E | 30.2°F (-1.0°C) | 27% | 64.4°F (18.0°C) | ||||
| Sundance | Beulah | 205.9 | Sep 10, 2026, 10:26 PM | Dry | 68.7°F (20.4°C) | None | None | 0.0 mph (0.0 km/h) | 0.0 mph (0.0 km/h) | SW | 28.4°F (-2.0°C) | 27% | 64.4°F (18.0°C) | > 1/2 mi (> 0.8 km) |