Poison Lake Weather Forecast, WY

Today 14 Mar Wind River Mountains East

Snow Showers. Blowing snow. Snow may be heavy at Times. Visibility one quarter mile or less at Times. Snow accumulation up to 6 Inches. Very windy with Highs in the mid 30s. West Winds 45 to 55 Mph with Gusts up to 95 Mph. Chance of snow 80 percent.

Tonight 14 Mar Wind River Mountains East

Mostly cloudy in the Evening, then becoming partly cloudy. Blowing snow in the evening. Snow Showers with visibility one quarter mile or less at Times. Storm total snow accumulation of 4 to 8 Inches. Very windy and much Colder with Lows 9 below to 5 above zero. West Winds 45 to 55 Mph with Gusts up to 95 Mph, becoming northwest and Diminishing to 15 to 20 Mph with Gusts up to 55 Mph after midnight. Chance of snow 80 percent.

Sun 15 Mar Wind River Mountains East

Mostly sunny with scattered snow Showers in the Morning, then partly cloudy with isolated snow Showers in the afternoon. Blustery, cold with Highs 12 to 24. Northwest Winds 15 to 25 Mph with Gusts up to 50 Mph. Chance of snow 30 percent. Lowest wind chill Readings wind chill Readings as low as 27 below in the morning.

Sun 15 Mar Wind River Mountains East

Partly cloudy in the Evening, then becoming mostly cloudy. Breezy, cold with Lows 2 to 14 above. Temperature rising to around 16 after midnight. West Winds 15 to 25 Mph with Gusts up to 50 Mph.

Mon 16 Mar Wind River Mountains East

Mostly cloudy in the Morning, then becoming partly cloudy. A 40 percent chance of snow Showers. Windy and not as cool with Highs in the upper 30s. West Winds 25 to 35 Mph with Gusts up to 65 Mph.

Mon 16 Mar Wind River Mountains East

Partly cloudy. A chance of snow Showers in the evening. Windy and not as cool with Lows around 30. Chance of snow 30 percent.

Tue 17 Mar Wind River Mountains East

Partly cloudy and windy. Highs in the mid 40s.

Tue 17 Mar Wind River Mountains East

Partly cloudy and windy. Lows in the lower 30s.

Wed 18 Mar Wind River Mountains East

Partly cloudy in the Morning, then clearing. Windy with Highs around 50.

Wed 18 Mar Wind River Mountains East

Mostly clear and breezy. Lows in the mid 30s.

Thu 19 Mar Wind River Mountains East

Mostly sunny and breezy. Highs in the lower 50s.

Thu 19 Mar Wind River Mountains East

Mostly clear and breezy. Lows in the mid 30s.

Fri 20 Mar Wind River Mountains East

Mostly sunny and breezy. Highs in the mid 50s.

Fri 20 Mar Wind River Mountains East

Partly cloudy with snow Showers. Blowing snow. Visibility one quarter mile or less at Times. New snow accumulation up to 6 Inches. Very windy with Lows in the upper 20s. West Winds 40 to 50 Mph with Gusts up to 80 Mph. Chance of snow 80 percent.

Poison Lake Weather Forecast

Today 14 Mar Wind River Mountains East

Tonight 14 Mar Wind River Mountains East

Sun 15 Mar Wind River Mountains East

Sun 15 Mar Wind River Mountains East

Mon 16 Mar Wind River Mountains East

Mon 16 Mar Wind River Mountains East

Tue 17 Mar Wind River Mountains East

Tue 17 Mar Wind River Mountains East

Wed 18 Mar Wind River Mountains East

Wed 18 Mar Wind River Mountains East

Thu 19 Mar Wind River Mountains East

Thu 19 Mar Wind River Mountains East

Fri 20 Mar Wind River Mountains East

Fri 20 Mar Wind River Mountains East

Temperature Forecast NOAA

Temperature Real-Time

Riverton Radar

National Satellite

National Synoptic

Poison Lake Temperature Statistics

March Temperature

South Pass (18.6 miles)

Lowest

Average 2026

Highest

Lowest

Average February

Highest

Lowest

Average March

Highest

Climate (2021–Present)

South Pass (18.6 miles)

Average Low 2021–2024

Average 2021–2024

Average High 2021–2024