| NWS Forecast for: Upper Green River Basin Issued by: National Weather Service Riverton, WY Last Update: 103 PM MDT Sun Apr 19 2026 | |
This Afternoon: Sunny. Highs in the lower 60s. West winds around 10 mph with gusts up to 20 mph. Tonight: Partly cloudy. Lows around 30. West winds 10 to 15 mph in the evening. Monday: Mostly sunny and breezy. Highs around 70. Southeast winds around 10 mph, becoming west 15 to 20 mph with gusts up to 30 mph in the afternoon. Monday Night: Mostly clear. Lows in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. Tuesday: Mostly sunny in the morning, then becoming partly cloudy. Highs around 70. Southeast winds around 10 mph, becoming south with gusts up to 25 mph in the afternoon. Tuesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. Wednesday: Mostly sunny with a chance of rain and snow showers in the morning, then mostly cloudy with rain showers, snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy with highs in the mid 50s. Chance of precipitation 60 percent. Wednesday Night: Mostly cloudy with a 30 percent chance of snow showers. Windy with lows in the upper 20s. Thursday: Mostly cloudy with a chance of snow showers. A chance of rain showers in the afternoon. Breezy with highs around 50. Chance of precipitation 30 percent. Thursday Night: Partly cloudy with a 30 percent chance of snow showers. Breezy with lows in the lower 20s. Friday: Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Chance of snow 30 percent. Friday Night: Partly cloudy with a 20 percent chance of snow showers. Cold with lows around 20. Saturday: Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers with a slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 30 percent. | |
| Zone Forecast: Upper Green River Basin | |
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