Lake Sumner, NM Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Sumner, a community in De Baca County, New Mexico.
Tonight
42°F
Mostly Cloudy
Mostly cloudy, with a low around 42. South wind 0 to 5 mph.
7-day forecast for Lake Sumner
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Mostly Cloudy | 0 to 5 mph S | 0% |
| Wednesday | 63°F | Sunny | 0 to 15 mph S | 0% |
| Wednesday Night | 45°F | Clear | 5 to 10 mph W | 0% |
| Thursday | 60°F | Sunny | 0 to 15 mph N | 0% |
| Thursday Night | 39°F | Mostly Clear | 0 mph | 0% |
| Friday | 61°F | Mostly Sunny | 0 to 10 mph SW | 3% |
| Friday Night | 41°F | Partly Cloudy | 0 to 5 mph SW | 9% |
| Saturday | 62°F | Mostly Sunny | 0 to 5 mph N | 8% |
| Saturday Night | 39°F | Mostly Clear | 0 mph | 2% |
| Sunday | 65°F | Sunny | 0 to 5 mph SW | 1% |
| Sunday Night | 41°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 70°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 43°F | Partly Cloudy | 5 mph SW | 1% |
| Tuesday | 70°F | Mostly Sunny | 5 to 10 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Lake Sumner (34.624, -104.402). Updated through the day.
Growing snapshot for Lake Sumner
Last spring frost
Apr 18
First fall frost
Oct 26
Growing season
190 days
Hardiness zone
7a
More local growing data for Lake Sumner: nearby ZIP 88119 weather · frost dates · planting calendar · New Mexico frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ft Sumner 5 S, Nm (7.2 mi from Lake Sumner). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.