What is the weather in Arnold, CA right now?

The latest observation from BANNER ROAD was 47°F, reported at 10/28/2026, 9:13 PM PDT.

Will it rain in Arnold, CA in the next 24 hours?

The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.

What time is sunrise and sunset in Arnold, CA today?

Sunrise is about 7:23 AM PDT and sunset is about 6:06 PM PDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Arnold, CA?

At Calaveras Big Trees, the 1991 to 2020 normal high in October is 64°F and the normal low is 43°F.

Checked Oct 28, 2026

Arnold, CA Weather

It is 47°F in Arnold, CA, observed at 9:13 PM PDT. Tonight: Mostly Cloudy then Haze, low 44°F. Hourly and 7-day forecast from the National Weather Service. Times are local (PDT).

Arnold, CA current weather

47°F

Partly Cloudy

H -- / L 44°Feels like 47°

Wildfire smoke overhead: light
No rain expected in the next 12 hours

Observed at BANNER ROAD (8 mi away), 10/28/2026, 9:13 PM PDT

Hourly forecast

NWS, updated 10/28/2026, 2:01 PM PT

Now45°
11 PM45°
12 AM45°Thu
1 AM46°
2 AM45°
3 AM46°
4 AM46°
5 AM46°
6 AM44°
7 AM45°
8 AM45°
9 AM48°
10 AM54°
11 AM56°
12 PM57°
1 PM57°
2 PM57°
3 PM56°
4 PM55°
5 PM54°
6 PM52°
7 PM50°
8 PM49°
9 PM49°
10 PM49°
11 PM49°
12 AM48°Fri
1 AM48°
2 AM48°11%
3 AM48°
4 AM48°
5 AM47°
6 AM46°
7 AM45°
8 AM45°
9 AM48°
10 AM51°
11 AM54°
12 PM55°
1 PM56°
2 PM56°
3 PM55°
4 PM54°
5 PM53°
6 PM51°
7 PM48°
8 PM46°
9 PM45°

7-day forecast

Tap a day for details

Today10/28Low 44°High
Tonight: Haze after 4am. Mostly cloudy. Low around 44, with temperatures rising to around 46 overnight. East wind around 3 mph.
Mostly Cloudy then Haze
Thu10/2911% chance of precipitationLow 45°High 57°
Thursday: Haze before noon. Cloudy. High near 57, with temperatures falling to around 54 in the afternoon. Southeast wind around 5 mph.
Thursday Night: Cloudy. Low around 45, with temperatures rising to around 47 overnight. East southeast wind around 3 mph.
Haze then Cloudy
Fri10/3025% chance of precipitationLow 44°High 56°
Friday: Partly sunny, with a high near 56. South southeast wind around 5 mph.
Friday Night: A chance of rain after 11pm. Partly cloudy, with a low around 44. East southeast wind around 3 mph. Chance of precipitation is 30%.
Partly Sunny
Sat10/3175% chance of precipitationLow 41°High 52°
Saturday: Rain. Mostly cloudy, with a high near 52. Chance of precipitation is 80%.
Saturday Night: Rain. Mostly cloudy, with a low around 41.
Rain
Sun11/123% chance of precipitationLow 40°High 54°
Sunday: A slight chance of rain before 10am. Mostly sunny, with a high near 54.
Sunday Night: Mostly clear, with a low around 40.
Slight Chance Light Rain then Mostly Sunny
Mon11/211% chance of precipitationLow 44°High 60°
Monday: Sunny, with a high near 60.
Monday Night: Partly cloudy, with a low around 44.
Sunny
Tue11/314% chance of precipitationLow 44°High 61°
Tuesday: Mostly sunny, with a high near 61.
Tuesday Night: Partly cloudy, with a low around 44.
Mostly Sunny
Wed11/4Low High 61°
Wednesday: Mostly sunny, with a high near 61.
Mostly Sunny

Forecast for 38.248, -120.350 from the NWS STO office, updated 10/28/2026, 2:01 PM PT · Official forecast on weather.gov

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now45°Partly Cloudy0%3 mph
11 PM45°Partly Cloudy0%3 mph
12 AM45°Mostly Cloudy0%3 mph
1 AM46°Mostly Cloudy0%3 mph
2 AM45°Mostly Cloudy0%3 mph
3 AM46°Mostly Cloudy0%3 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Arnold, CA right now?: The latest observation from BANNER ROAD was 47°F, reported at 10/28/2026, 9:13 PM PDT.
Will it rain in Arnold, CA in the next 24 hours?: The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What time is sunrise and sunset in Arnold, CA today?: Sunrise is about 7:23 AM PDT and sunset is about 6:06 PM PDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Arnold, CA?: At Calaveras Big Trees, the 1991 to 2020 normal high in October is 64°F and the normal low is 43°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid): 0.50 in
Snow: 0.00 in
Ice: 0.00 in

Nearby hazards

California hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
River gauges within 40 miles at or above flood stage: None reported
Active wildfires within 50 miles: WINDMILLER Fire

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (Placerville): 37GoodOzone
AQI forecast tomorrow (Placerville): 39GoodOzone

UV index guide · Air quality

Drought

By county

Calaveras County, week of 10/20/2026

100% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise: 7:23 AM
Sunset: 6:06 PM
Daylight: 10 hr 43 min
Moon: Waning Gibbous 90% lit

First light (civil dawn): 6:56 AM
Last light (civil dusk): 6:33 PM
Moonrise: 7:42 PM
Moonset: 10:30 AM

Normal October weather

Climate

Normal October high 64°, low 43°, precipitation 2.93 in for the month. 1991 to 2020 normals at Calaveras Big Trees, 3 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
Hazard Mapping System Smoke AnalysisNOAA NESDIS Office of Satellite and Product Operations
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

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About this data

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