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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 | Mar 23, 2026, 03:30 AM | None | None | 7.5 mph (12.0 km/h) | 10.6 mph (17.0 km/h) | S | 30.2°F (-1.0°C) | 73% | 39.2°F (4.0°C) | > 1/2 mi (> 0.8 km) | ||
| Sheridan | Pompey Creek | 35.3 | Mar 23, 2026, 03:30 AM | None | None | 6.8 mph (11.0 km/h) | 12.4 mph (20.0 km/h) | SE | 30.2°F (-1.0°C) | 66% | 41.0°F (5.0°C) | > 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 | Mar 23, 2026, 03:30 AM | Dry | 41.7°F (5.4°C) | None | None | 0.0 mph (0.0 km/h) | 3.1 mph (5.0 km/h) | W | 32.0°F (0.0°C) | 78% | 37.4°F (3.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Kearny Divide | 45.33 | Mar 23, 2026, 03:30 AM | N/A | N/A | N/A | N/A | |||||||
| Buffalo | Indian Creek Road | 83.3 | Mar 23, 2026, 03:30 AM | Dry | 43.3°F (6.3°C) | None | None | 9.9 mph (16.0 km/h) | 12.4 mph (20.0 km/h) | S | 28.4°F (-2.0°C) | 67% | 37.4°F (3.0°C) | > 1/2 mi (> 0.8 km) |
| Buffalo | Dead Horse | 91.5 | Mar 23, 2026, 03:30 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 | Mar 23, 2026, 03:30 AM | Dry | 39.0°F (3.9°C) | None | 0.0 mph (0.0 km/h) | 0.0 mph (0.0 km/h) | SE | 30.2°F (-1.0°C) | 78% | 37.4°F (3.0°C) | > 1/2 mi (> 0.8 km) | |
| Sundance | Inyan Kara | 170.5 | Mar 23, 2026, 03:30 AM | Dry | 41.2°F (5.1°C) | None | 3.7 mph (6.0 km/h) | 5.0 mph (8.0 km/h) | SE | 35.6°F (2.0°C) | 97% | 37.4°F (3.0°C) | ||
| Sundance | Beulah | 205.9 | Mar 23, 2026, 03:30 AM | Dry | 43.0°F (6.1°C) | None | None | 0.0 mph (0.0 km/h) | 0.0 mph (0.0 km/h) | W | 32.0°F (0.0°C) | 79% | 37.4°F (3.0°C) | > 1/2 mi (> 0.8 km) |