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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 | Jul 27, 2026, 11:58 AM | None | None | 4.3 mph (7.0 km/h) | 7.5 mph (12.0 km/h) | NW | 55.4°F (13.0°C) | 45% | 78.8°F (26.0°C) | > 1/2 mi (> 0.8 km) | ||
| Sheridan | Pompey Creek | 35.3 | Jun 30, 2026, 09:12 AM | |||||||||||
| Sheridan | Sheridan/Johnson County Line | 41.33 | Jan 29, 2023, 07:04 PM | |||||||||||
| Buffalo | Piney Creek Interchange | 44.7 | Jul 27, 2026, 11:58 AM | Dry | 81.7°F (27.6°C) | None | None | 10.6 mph (17.0 km/h) | 16.8 mph (27.0 km/h) | NW | 55.4°F (13.0°C) | 46% | 77.0°F (25.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Kearny Divide | 45.33 | Jul 27, 2026, 11:58 AM | N/A | N/A | N/A | N/A | |||||||
| Buffalo | Indian Creek Road | 83.3 | Jul 27, 2026, 11:58 AM | Wet | 106.0°F (41.1°C) | None | None | 24.9 mph (40.0 km/h) | 33.6 mph (54.0 km/h) | NE | 50.0°F (10.0°C) | 30% | 84.2°F (29.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Dead Horse | 91.5 | Jul 27, 2026, 11:58 AM | Wet | 44.1°F (6.7°C) | None | None | 0.0 mph (0.0 km/h) | 0.0 mph (0.0 km/h) | NW | N/A | N/A | > 1/2 mi (> 0.8 km) | |
| Gillette | Mile Marker 108 | 108 | Jul 27, 2026, 11:58 AM | Dry | 99.1°F (37.3°C) | None | 9.9 mph (16.0 km/h) | 14.9 mph (24.0 km/h) | NW | 55.4°F (13.0°C) | 40% | 82.4°F (28.0°C) | > 1/2 mi (> 0.8 km) | |
| Sundance | Inyan Kara | 170.5 | Jul 27, 2026, 11:58 AM | None | 18.6 mph (30.0 km/h) | 24.2 mph (39.0 km/h) | S | 60.8°F (16.0°C) | 38% | 89.6°F (32.0°C) | ||||
| Sundance | Beulah | 205.9 | Jul 27, 2026, 11:58 AM | Dry | 106.2°F (41.2°C) | None | None | 0.0 mph (0.0 km/h) | 0.0 mph (0.0 km/h) | E | 51.8°F (11.0°C) | 24% | 93.2°F (34.0°C) | > 1/2 mi (> 0.8 km) |