Challenge-Brownsville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Challenge-Brownsville, a community in Yuba County, California.
Overnight
40°F
Mostly Clear
Mostly clear, with a low around 40. East northeast wind around 6 mph.
7-day forecast for Challenge-Brownsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Mostly Clear | 6 mph ENE | 0% |
| Wednesday | 62°F | Sunny | 1 to 7 mph WNW | 1% |
| Wednesday Night | 44°F | Partly Cloudy | 2 to 6 mph NE | 1% |
| Thursday | 68°F | Sunny | 1 to 6 mph NW | 0% |
| Thursday Night | 47°F | Mostly Clear | 1 to 6 mph N | 0% |
| Friday | 69°F | Sunny | 0 to 6 mph NNE | 0% |
| Friday Night | 49°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Saturday | 70°F | Sunny | 0 to 6 mph W | 0% |
| Saturday Night | 48°F | Mostly Clear | 0 to 3 mph NE | 0% |
| Sunday | 70°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 49°F | Partly Cloudy | 0 to 3 mph NE | 0% |
| Monday | 66°F | Mostly Sunny | 0 to 3 mph ESE | 1% |
| Monday Night | 48°F | Partly Cloudy | 0 to 3 mph NE | 1% |
| Tuesday | 66°F | Sunny then Slight Chance Light Rain | 0 to 3 mph NNE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Challenge-Brownsville (39.465, -121.263). Updated through the day.
Growing snapshot for Challenge-Brownsville
Last spring frost
Apr 1
First fall frost
Nov 17
Growing season
229 days
Hardiness zone
9a
More local growing data for Challenge-Brownsville: nearby ZIP 95919 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Beale AFB
Camptonville
Dobbins
Linda
Loma Rica
Marysville
North San Juan
Olivehurst
Plumas Lake
Rackerby
Smartsville
Wheatland
Climate data from the nearest NOAA station, Dobbins 1 S, Ca (6.3 mi from Challenge-Brownsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.