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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 | May 1, 2025, 08:22 AM | None | None | 9.3 mph (15.0 km/h) | 12.4 mph (20.0 km/h) | NW | 35.6°F (2.0°C) | 67% | 46.4°F (8.0°C) | > 1/2 mi (> 0.8 km) | ||
| Sheridan | Pompey Creek | 35.3 | May 1, 2025, 08:22 AM | None | None | 13.0 mph (21.0 km/h) | 20.5 mph (33.0 km/h) | W | N/A | 100% | N/A | > 1/2 mi (> 0.8 km) | ||
| Sheridan | Sheridan/Johnson County Line | 41.33 | Jan 29, 2023, 07:04 PM | |||||||||||
| Buffalo | Piney Creek Interchange | 44.7 | May 1, 2025, 08:22 AM | Wet | 40.8°F (4.9°C) | None | None | 11.8 mph (19.0 km/h) | 16.8 mph (27.0 km/h) | NW | 35.6°F (2.0°C) | 72% | 42.8°F (6.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Kearny Divide | 45.33 | Dec 23, 2024, 08:38 AM | |||||||||||
| Buffalo | Indian Creek Road | 83.3 | May 1, 2025, 08:22 AM | Wet | 48.6°F (9.2°C) | None | None | 8.1 mph (13.0 km/h) | 16.2 mph (26.0 km/h) | N | 33.8°F (1.0°C) | 65% | 44.6°F (7.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Dead Horse | 91.5 | May 1, 2025, 08:22 AM | Wet | 45.7°F (7.6°C) | None | None | 3.7 mph (6.0 km/h) | 6.8 mph (11.0 km/h) | S | N/A | N/A | > 1/2 mi (> 0.8 km) | |
| Gillette | Mile Marker 108 | 108 | May 1, 2025, 08:22 AM | Trace Moisture | 46.8°F (8.2°C) | None | None | 8.7 mph (14.0 km/h) | 11.8 mph (19.0 km/h) | S | 35.6°F (2.0°C) | 91% | 37.4°F (3.0°C) | > 1/2 mi (> 0.8 km) |
| Sundance | Inyan Kara | 170.5 | May 1, 2025, 08:22 AM | Dry | 49.3°F (9.6°C) | None | 3.1 mph (5.0 km/h) | 5.0 mph (8.0 km/h) | SW | 39.2°F (4.0°C) | 99% | 39.2°F (4.0°C) | ||
| Sundance | Beulah | 205.9 | May 1, 2025, 08:22 AM | Trace Moisture | 50.2°F (10.1°C) | None | None | 8.1 mph (13.0 km/h) | 13.0 mph (21.0 km/h) | W | 39.2°F (4.0°C) | 68% | 48.2°F (9.0°C) | > 1/2 mi (> 0.8 km) |