Harman US

Frannie, WY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Frannie, a town in Big Horn County, Wyoming.

Tonight
31°F
Mostly Clear
Mostly clear. Low around 31, with temperatures rising to around 34 overnight. Southeast wind 2 to 6 mph.

7-day forecast for Frannie

WhenTempForecastWindPrecip
Tonight 31°F Mostly Clear 2 to 6 mph SE 0%
Wednesday 51°F Mostly Sunny 3 mph WNW 0%
Wednesday Night 31°F Partly Cloudy 1 to 8 mph ENE 0%
Thursday 52°F Mostly Sunny 0 to 10 mph E 1%
Thursday Night 33°F Mostly Cloudy 1 to 9 mph NNW 8%
Friday 52°F Sunny 2 to 12 mph E 2%
Friday Night 32°F Partly Cloudy 7 to 12 mph ESE 0%
Saturday 54°F Sunny 8 mph SE 0%
Saturday Night 34°F Mostly Clear 7 to 15 mph ESE 0%
Sunday 59°F Mostly Sunny 6 to 15 mph ESE 0%
Sunday Night 36°F Partly Cloudy 6 mph E 0%
Monday 58°F Mostly Sunny 5 mph ENE 0%
Monday Night 36°F Partly Cloudy 6 mph ESE 1%
Tuesday 59°F Mostly Sunny 2 to 6 mph SE 0%

Forecast source: National Weather Service (api.weather.gov) for Frannie (44.971, -108.621). Updated through the day.

Growing snapshot for Frannie

Last spring frost
May 6
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
5a

More local growing data for Frannie: nearby ZIP 82423 weather · frost dates · planting calendar · Wyoming frost dates

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Climate data from the nearest NOAA station, Deaver, Wy (6.6 mi from Frannie). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.