Greenhorn, CA Weather Forecast

Local 7-day forecast

75°

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Greenhorn, CA in one place.

Wednesday, September 16, 2026

Wind: 2 to 6 mph S

Wednesday

Sunny, with a high near 75. South wind 2 to 6 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Greenhorn, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 14, 2026 6:05 PM PDT.

The active forecast window currently covers Sep 16 to Sep 20, 2026 for Greenhorn, CA.

Page Snapshot

Page focus: city weather
Forecast window: Sep 16 to Sep 20, 2026
Latest sync: Sep 14, 2026 6:05 PM PDT
Forecast office: STO
Source: NOAA / NWS

Next High

75°F

Wednesday

Next Low

37°F

Wednesday Night

Rain Outlook

Periods mentioning precipitation

Windiest

2 to 6 mph

Wednesday

Daily Outlook

Today

Sep 16

Sunny

75 °F

/ 37°F

Wind 2 to 6 mph

Thu

Sep 17

Sunny

73 °F

/ 39°F

Wind 0 to 3 mph

Fri

Sep 18

Sunny

80 °F

/ 41°F

Wind 3 mph

Sat

Sep 19

Sunny

85 °F

/ 43°F

Wind 1 to 5 mph

Sun

Sep 20

Sunny

86 °F

/ 44°F

Wind 3 mph

This Week in Greenhorn

Sunday looks like the warmest upcoming period in Greenhorn at 86 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 37 degrees F.

The strongest winds are forecast for Wednesday at about 2 to 6 mph S.

The forecast from Sep 16 through Sep 20 stays mostly dry.

Forecast Details

Last updated: Sep 14, 2026 6:05 PM PDT
Coverage: 6 days
Time zone: America/Los_Angeles
Forecast office: STO
Radar station: KBBX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Wednesday Night

Sep 16

37°F

Mostly Clear

0 to 5 mph SE

Mostly clear, with a low around 37.

Thursday

Sep 17

73°F

Sunny

0 to 3 mph SW

Sunny, with a high near 73.

Thursday Night

Sep 17

39°F

Clear

0 to 3 mph SSE

Clear, with a low around 39.

Friday

Sep 18

80°F

Sunny

3 mph NE

Sunny, with a high near 80.

Friday Night

Sep 18

41°F

Clear

2 mph NE

Clear, with a low around 41.

Saturday

Sep 19

85°F

Sunny

1 to 5 mph NE

Sunny, with a high near 85.

Saturday Night

Sep 19

43°F

Mostly Clear

2 mph NNE

Mostly clear, with a low around 43.

Sunday

Sep 20

86°F

Sunny

3 mph S

Sunny, with a high near 86.

Sunday Night

Sep 20

44°F

Mostly Clear

0 to 3 mph WSW

Mostly clear, with a low around 44.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Wednesday Sep 16	Sunny	75°F	2 to 6 mph S	Sunny, with a high near 75. South wind 2 to 6 mph.
Wednesday Night Sep 16	Mostly Clear	37°F	0 to 5 mph SE	Mostly clear, with a low around 37.
Thursday Sep 17	Sunny	73°F	0 to 3 mph SW	Sunny, with a high near 73.
Thursday Night Sep 17	Clear	39°F	0 to 3 mph SSE	Clear, with a low around 39.
Friday Sep 18	Sunny	80°F	3 mph NE	Sunny, with a high near 80.
Friday Night Sep 18	Clear	41°F	2 mph NE	Clear, with a low around 41.
Saturday Sep 19	Sunny	85°F	1 to 5 mph NE	Sunny, with a high near 85.
Saturday Night Sep 19	Mostly Clear	43°F	2 mph NNE	Mostly clear, with a low around 43.
Sunday Sep 20	Sunny	86°F	3 mph S	Sunny, with a high near 86.
Sunday Night Sep 20	Mostly Clear	44°F	0 to 3 mph WSW	Mostly clear, with a low around 44.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Greenhorn.

Region Links

Plumas County weather

County forecast page

California weather

Statewide weather overview

United States weather

National weather entry point

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.