Fontenelle, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fontenelle, a community in Lincoln County, Wyoming.
Today
46°F
Cloudy
Cloudy. High near 46, with temperatures falling to around 42 in the afternoon. Northeast wind 1 to 8 mph.
7-day forecast for Fontenelle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 46°F | Cloudy | 1 to 8 mph NE | 6% |
| Tonight | 25°F | Mostly Clear | 3 mph NW | 0% |
| Thursday | 46°F | Mostly Sunny | 2 to 6 mph SW | 0% |
| Thursday Night | 26°F | Partly Cloudy | 3 to 7 mph W | 3% |
| Friday | 49°F | Sunny | 3 to 8 mph W | 0% |
| Friday Night | 25°F | Mostly Clear | 2 to 8 mph WNW | 0% |
| Saturday | 50°F | Sunny | 2 mph SW | 0% |
| Saturday Night | 27°F | Mostly Clear | 2 mph NW | 0% |
| Sunday | 55°F | Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 29°F | Partly Cloudy | 1 to 5 mph W | 0% |
| Monday | 54°F | Mostly Sunny | 3 mph WSW | 0% |
| Monday Night | 30°F | Mostly Cloudy | 3 mph WNW | 0% |
| Tuesday | 55°F | Mostly Sunny | 2 to 6 mph WNW | 0% |
| Tuesday Night | 30°F | Partly Cloudy | 2 to 6 mph WNW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Fontenelle (42.003, -110.062). Updated through the day.
Growing snapshot for Fontenelle
Last spring frost
Jun 9
First fall frost
Sep 4
Growing season
84 days
Hardiness zone
4a
More local growing data for Fontenelle: nearby ZIP 83123 weather · frost dates · planting calendar · Wyoming frost dates
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Climate data from the nearest NOAA station, La Barge, Wy (4.2 mi from Fontenelle). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.