| NWS Forecast for: North Sioux Issued by: National Weather Service Cheyenne, WY Last Update: 446 AM MDT Sun May 17 2026 | |
| Today: Mostly cloudy with scattered showers with a slight chance of thunderstorms this morning, then partly sunny with a slight chance of showers this afternoon. Breezy and much cooler with highs in the mid 60s. Northwest winds 20 to 25 mph, becoming north 15 to 25 mph this afternoon. Gusts up to 40 mph. Chance of rain 50 percent. Tonight: Mostly cloudy. A chance of rain showers in the evening, then rain showers after midnight. Much colder with lows in the lower 30s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent. Monday: Rain and snow showers. Snow accumulation around an inch. Much cooler. Near steady temperature in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation near 100 percent. Monday Night: Mostly cloudy. A chance of rain and snow showers in the evening. Little or no additional snow accumulation. Cold with lows in the mid 20s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 40 percent. Tuesday: Mostly sunny. Not as cool with highs in the mid 50s. West winds around 10 mph. Tuesday Night: Mostly clear. Widespread frost after midnight. Cold with lows around 30. Wednesday And Wednesday Night: Partly cloudy. Highs in the mid 60s. Lows in the upper 30s. Thursday: Partly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 40 percent. Thursday Night: Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows around 40. Chance of rain 30 percent. Friday And Friday Night: Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. Saturday: Sunny. Highs in the upper 70s. | |
| Zone Forecast: North Sioux | |
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