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North Rock Springs, WY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for North Rock Springs, a community in Sweetwater County, Wyoming.

This Afternoon
63°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 5pm, then a chance of showers and thunderstorms. Partly sunny. High near 63, with temperatures falling to around 58 in the afternoon. West southwest wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for North Rock Springs

WhenTempForecastWindPrecip
This Afternoon 63°F Showers And Thunderstorms Likely 10 mph WSW 69%
Tonight 39°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 6 to 9 mph W 36%
Sunday 62°F Sunny 5 to 9 mph W 1%
Sunday Night 38°F Mostly Clear 2 to 6 mph SSE 0%
Monday 67°F Mostly Sunny 3 mph S 0%
Monday Night 41°F Partly Cloudy 3 mph N 0%
Tuesday 71°F Mostly Sunny 3 to 7 mph S 7%
Tuesday Night 43°F Chance Showers And Thunderstorms 6 mph SW 31%
Wednesday 69°F Mostly Sunny 6 to 10 mph WSW 9%
Wednesday Night 42°F Mostly Clear 6 mph WSW 2%
Thursday 72°F Sunny 3 mph SW 2%
Thursday Night 45°F Partly Cloudy 5 mph SE 3%
Friday 73°F Mostly Sunny 2 to 6 mph S 6%
Friday Night 46°F Partly Cloudy 7 mph S 9%

Forecast source: National Weather Service (api.weather.gov) for North Rock Springs (41.669, -109.288). Updated through the day.

Growing snapshot for North Rock Springs

Last spring frost
May 24
First fall frost
Sep 24
Growing season
121 days
Hardiness zone
5a

More local growing data for North Rock Springs: nearby ZIP 82943 weather · frost dates · planting calendar · Wyoming frost dates

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Climate data from the nearest NOAA station, Rock Springs Fire Dept, Wy (9 mi from North Rock Springs). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.