Rock Springs, WY 82901 Monthly Weather

Sweetwater County4:37 PM MDT41.61°N, 109.23°W
← September

October 2026

Sun
Mon
Tue
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Sat
171°/39°Avg 69°/36°
280°/38°Avg 69°/36°
384°/38°Avg 68°/35°
484°/42°Avg 68°/35°
585°/42°Avg 67°/34°
686°/43°Avg 66°/34°
783°/41°Avg 66°/34°
883°/41°Avg 65°/33°
983°/41°Avg 65°/33°
1076°/43°Avg 64°/33°
1174°/52°0.17 inAvg 64°/32°
1268°/45°0.30 inAvg 63°/32°
1358°/41°0.10 inAvg 62°/32°
1456°/41°0.15 inAvg 62°/31°
1547°/36°0.40 inAvg 61°/31°
1654°/34°Avg 61°/30°
1763°/32°Avg 60°/30°
1863°/31°Avg 60°/30°
1968°/32°Avg 59°/29°
20Avg 58°/29°
21 Partly Sunny 66°/42°Avg 58°/28°
22 Patchy Fog then Slight Chance Showers And Thunderstorms 64°/43°Avg 57°/28°
23 Chance Rain Showers 58°/32°Avg 57°/28°
24 Mostly Sunny 51°/31°Avg 56°/27°
25 Mostly Sunny 52°/30°Avg 56°/27°
26 Mostly Sunny 54°/30°Avg 55°/26°
27 Mostly Sunny 55°/29°Avg 54°/26°
28 Cloudy 46°/30°Avg 54°/26°
29 Sunny 47°/26°Avg 53°/25°
30 Sunny 51°/28°Avg 53°/25°
31Avg 52°/24°
Average high72° (normal 64°)
Average low40° (normal 33°)
Warmest / coldest86° / 31°
Precipitation1.12 in (normal 0.72 in to date)
Record high today83° (1921)
Record low today9° (1932)

Observed: Green River, 22 km away, records since 1897. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.