Rosemont, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosemont, a community in Sacramento County, California.
This Afternoon
61°F
Chance Light Rain
A chance of rain. Partly sunny. High near 61, with temperatures falling to around 58 in the afternoon. East northeast wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Rosemont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Chance Light Rain | 3 mph ENE | 25% |
| Tonight | 48°F | Slight Chance Light Rain then Partly Cloudy | 3 to 8 mph N | 15% |
| Wednesday | 68°F | Sunny | 2 to 8 mph NNW | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 2 mph N | 0% |
| Thursday | 70°F | Sunny | 1 to 5 mph NNW | 0% |
| Thursday Night | 45°F | Mostly Clear | 2 mph NNE | 0% |
| Friday | 70°F | Sunny | 2 mph N | 0% |
| Friday Night | 48°F | Clear | 1 mph NE | 0% |
| Saturday | 72°F | Sunny | 1 mph NNW | 0% |
| Saturday Night | 49°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 72°F | Mostly Sunny | 3 mph N | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph N | 0% |
| Monday | 71°F | Partly Sunny | 2 mph S | 1% |
| Monday Night | 49°F | Partly Cloudy | 2 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Rosemont (38.548, -121.355). Updated through the day.
Growing snapshot for Rosemont
Last spring frost
Jan 12
First fall frost
Dec 16
Growing season
341 days
Hardiness zone
9b
More local growing data for Rosemont: nearby ZIP 95826 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
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Citrus Heights
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Elk Grove
Elverta
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Foothill Farms
Franklin
Freeport
Fruitridge Pocket
Galt
Gold River
Herald
Hood
Isleton
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McClellan Park
North Highlands
Orangevale
Parkway
Rancho Cordova
Rancho Murieta
Climate data from the nearest NOAA station, Sacramento 5 Ese, Ca (2.2 mi from Rosemont). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.