Middle Fork Feather River near Portola
18 mi- Level
- 4845 ft
- Flow
- 24 cfs
Forecast peak 4845 ft Sat 1 PM
Reading from Sat 11:30 AM · NWS gauge page
Model estimate for 1:00 PM PDT (no recent station report)
Greenhorn, CA weather
Sunny and 57°14°, jacket by 7 PM.
Today: low 32°0° (likely 29°−2° to 41°5°), high 63°17° (likely 59°15° to 64°18°).
Now 57°14°
Sunny
- Wind
- 5 mph8 km/hgusts 15 mph25 km/h
- From the east-southeast. Up to 6 mph10 km/h through 1 AM
- Dew point
- 32°0°
- Dry, static shocks likely
- UV index
- 5Moderate
- Moderate until 5 PM
- Air quality
- 1Good
- Main pollutant: PM2.5 (fine particles)
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
This afternoonUp to 62°17° by 5 PM · Clear
TonightDown to 33°1° by 5 AM · Partly cloudy
Tomorrow morningUp to 53°12° by 11 AM · freezing, low 32°0° · Mostly cloudy
Tomorrow afternoonUp to 63°17° by 4 PM · Mostly cloudy
Tomorrow nightDown to 37°3° by 3 AM · Clear
Monday morningUp to 51°11° by 11 AM · gusts to 29 mph47 km/h · Clear
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 1p | Sunny | 57°14° (likely 56°13° to 61°16°) | 57°14° | 0% | 5 mph8 km/h from ESE, gusts 15 mph25 km/h | 38% | 1% | 5 |
| Sat 2p | Sunny | 61°16° (likely 58°14° to 63°17°) | 61°16° | 0% | 5 mph8 km/h from ESE, gusts 14 mph22 km/h | 33% | 1% | 5 |
| Sat 3p | Sunny | 61°16° (likely 59°15° to 64°18°) | 61°16° | 0% | 5 mph8 km/h from ESE, gusts 12 mph19 km/h | 31% | 1% | 4 |
| Sat 4p | Sunny | 61°16° (likely 58°14° to 64°18°) | 61°16° | 0% | 3 mph5 km/h from ESE, gusts 11 mph17 km/h | 31% | 1% | 3 |
| Sat 5p | Sunny | 62°17° (likely 56°13° to 62°17°) | 62°17° | 0% | 3 mph5 km/h from SE, gusts 10 mph16 km/h | 31% | 0% | 1 |
| Sat 6p | Clear | 56°13° (likely 50°10° to 58°14°) | 56°13° | 0% | 2 mph3 km/h from E, gusts 8 mph13 km/h | 40% | 0% | 0 |
| Sat 7p | Clear | 51°11° (likely 45°7° to 54°12°) | 51°11° | 0% | 2 mph3 km/h from E, gusts 7 mph11 km/h | 51% | 0% | 0 |
| Sat 8p | Clear | 48°9° (likely 42°6° to 51°11°) | 46°8° | 0% | 5 mph8 km/h from E, gusts 7 mph11 km/h | 59% | 0% | 0 |
| Sat 9p | Clear | 42°6° (likely 39°4° to 50°10°) | 39°4° | 0% | 5 mph8 km/h from E, gusts 7 mph11 km/h | 64% | 0% | 0 |
| Sat 10p | Clear | 40°4° (likely 38°3° to 49°9°) | 36°2° | 0% | 6 mph10 km/h from E, gusts 7 mph12 km/h | 66% | 0% | 0 |
| Sat 11p | Clear | 39°4° (likely 37°3° to 47°8°) | 35°2° | 0% | 6 mph10 km/h from E, gusts 7 mph12 km/h | 68% | 40% | 0 |
| Sun 12a | Clear | 37°3° (likely 36°2° to 46°8°) | 33°1° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 69% | 39% | 0 |
| Sun 1a | Clear | 36°2° (likely 35°2° to 46°8°) | 33°1° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 69% | 40% | 0 |
| Sun 2a | Mostly clear | 35°2° (likely 34°1° to 46°8°) | 32°0° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 73% | 45% | 0 |
| Sun 3a | Mostly clear | 34°1° (likely 34°1° to 46°8°) | 34°1° | 0% | 2 mph3 km/h from E, gusts 5 mph9 km/h | 76% | 54% | 0 |
| Sun 4a | Cloudy | 34°1° (likely 34°1° to 45°7°) | 34°1° | 0% | 1 mph2 km/h from E, gusts 5 mph7 km/h | 76% | 59% | 0 |
| Sun 5a | Mostly clear | 33°1° (likely 33°1° to 45°7°) | 33°1° | 0% | 1 mph2 km/h from ESE, gusts 6 mph9 km/h | 76% | 61% | 0 |
| Sun 6a | Mostly clear | 32°0° (likely 32°0° to 46°8°) | 32°0° | 0% | 1 mph2 km/h from ENE, gusts 6 mph9 km/h | 78% | 65% | 0 |
| Sun 7a | Partly sunny | 32°0° (likely 32°0° to 45°7°) | 32°0° | 0% | 1 mph2 km/h from NE, gusts 5 mph7 km/h | 80% | 71% | 0 |
| Sun 8a | Cloudy | 32°0° (likely 32°0° to 45°7°) | 32°0° | 0% | 2 mph3 km/h from ENE, gusts 4 mph7 km/h | 82% | 67% | 0 |
| Sun 9a | Partly sunny | 38°3° (likely 38°3° to 50°10°) | 38°3° | 0% | 2 mph3 km/h from ENE, gusts 5 mph8 km/h | 72% | 74% | 1 |
| Sun 10a | Partly sunny | 47°8° (likely 47°8° to 55°13°) | 47°8° | 0% | 1 mph2 km/h from S, gusts 4 mph7 km/h | 55% | 73% | 2 |
| Sun 11a | Partly sunny | 53°12° (likely 52°11° to 58°14°) | 53°12° | 0% | 2 mph3 km/h from WSW, gusts 9 mph15 km/h | 44% | 71% | 3 |
| Sun 12p | Partly sunny | 57°14° (likely 56°13° to 61°16°) | 57°14° | 0% | 3 mph5 km/h from WSW, gusts 11 mph18 km/h | 40% | 74% | 4 |
| Sun 1p | Cloudy | 60°16° (likely 59°15° to 62°17°) | 60°16° | 0% | 5 mph8 km/h from WSW, gusts 14 mph23 km/h | 35% | 76% | 4 |
| Sun 2p | Cloudy | 62°17° (likely 59°15° to 63°17°) | 62°17° | 0% | 5 mph8 km/h from SW, gusts 16 mph26 km/h | 32% | 78% | 4 |
| Sun 3p | Cloudy | 61°16° (likely 58°14° to 63°17°) | 61°16° | 0% | 6 mph10 km/h from SW, gusts 17 mph27 km/h | 32% | 78% | 3 |
| Sun 4p | Cloudy | 63°17° (likely 56°13° to 63°17°) | 63°17° | 0% | 6 mph10 km/h from SW, gusts 17 mph28 km/h | 33% | 80% | 2 |
| Sun 5p | Cloudy | 60°16° (likely 54°12° to 60°16°) | 60°16° | 0% | 3 mph5 km/h from SW, gusts 17 mph27 km/h | 34% | 78% | 1 |
| Sun 6p | Partly cloudy | 56°13° (likely 50°10° to 56°13°) | 56°13° | 0% | 3 mph5 km/h from SW, gusts 14 mph22 km/h | 42% | 70% | 0 |
| Sun 7p | Mostly cloudy | 52°11° (likely 47°8° to 52°11°) | 52°11° | 0% | 3 mph5 km/h from SW, gusts 9 mph15 km/h | 51% | 43% | 0 |
| Sun 8p | Mostly cloudy | 46°8° (likely 45°7° to 51°11°) | 43°6° | 0% | 6 mph10 km/h from SSW, gusts 8 mph14 km/h | 58% | 46% | 0 |
| Sun 9p | Mostly cloudy | 43°6° (likely 43°6° to 50°10°) | 39°4° | 0% | 6 mph10 km/h from SSW, gusts 8 mph12 km/h | 63% | 35% | 0 |
| Sun 10p | Clear | 42°6° (likely 42°6° to 49°9°) | 38°3° | 0% | 6 mph10 km/h from SSW, gusts 9 mph15 km/h | 66% | 31% | 0 |
| Sun 11p | Clear | 41°5° (likely 41°5° to 48°9°) | 36°2° | 0% | 7 mph11 km/h from S, gusts 12 mph20 km/h | 68% | 9% | 0 |
| Mon 12a | Clear | 40°4° (likely 40°4° to 48°9°) | 35°2° | 0% | 7 mph11 km/h from S, gusts 13 mph21 km/h | 70% | 0% | 0 |
| Mon 1a | Clear | 39°4° (likely 39°4° to 47°8°) | 34°1° | 0% | 7 mph11 km/h from S, gusts 13 mph21 km/h | 71% | 0% | 0 |
| Mon 2a | Clear | 38°3° (likely 38°3° to 47°8°) | 33°1° | 0% | 7 mph11 km/h from SSW, gusts 13 mph21 km/h | 75% | 7% | 0 |
| Mon 3a | Clear | 37°3° (likely 37°3° to 46°8°) | 32°0° | 0% | 7 mph11 km/h from SSW, gusts 14 mph22 km/h | 78% | 10% | 0 |
| Mon 4a | Clear | 37°3° (likely 37°3° to 46°8°) | 32°0° | 0% | 7 mph11 km/h from SSW, gusts 14 mph23 km/h | 79% | 10% | 0 |
| Mon 5a | Clear | 37°3° (likely 37°3° to 45°7°) | 32°0° | 0% | 7 mph11 km/h from SSW, gusts 15 mph24 km/h | 78% | 12% | 0 |
| Mon 6a | Clear | 36°2° (likely 36°2° to 45°7°) | 30°−1° | 0% | 7 mph11 km/h from SSW, gusts 15 mph24 km/h | 80% | 12% | 0 |
| Mon 7a | Sunny | 35°2° (likely 35°2° to 45°7°) | 29°−2° | 0% | 7 mph11 km/h from SSW, gusts 15 mph24 km/h | 83% | 14% | 0 |
| Mon 8a | Sunny | 36°2° (likely 36°2° to 45°7°) | 31°−1° | 0% | 6 mph10 km/h from SSW, gusts 15 mph24 km/h | 82% | 16% | 0 |
| Mon 9a | Sunny | 40°4° (likely 40°4° to 49°9°) | 36°2° | 0% | 6 mph10 km/h from SSW, gusts 24 mph38 km/h | 72% | 12% | 1 |
| Mon 10a | Sunny | 46°8° (likely 46°8° to 52°11°) | 43°6° | 0% | 6 mph10 km/h from SSW, gusts 28 mph44 km/h | 58% | 13% | 2 |
| Mon 11a | Sunny | 51°11° (likely 51°11° to 54°12°) | 51°11° | 5% | 9 mph14 km/h from SW, gusts 29 mph46 km/h | 45% | 6% | 3 |
| Mon 12p | Sunny | 54°12° (likely 51°11° to 56°13°) | 54°12° | 5% | 9 mph14 km/h from SW, gusts 32 mph51 km/h | 39% | 7% | 4 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Sunny. High 63°17°, low 32°0°. Typical 65°18° / 31°−1°. Dry. Forecasts differ.
Afternoon
noon–6 PM
Sunny, 62°17°Dry
Evening
6 PM–midnight
Clear, 48°9°Dry
Overnight
midnight–6 AM
Mostly clear, 33°1°Dry
Official NWS forecast
Today: Sunny, with a high near 63. East southeast wind around 5 mph.
Tonight: Widespread frost after midnight. Mostly clear, with a low around 32. East wind 1 to 6 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 59°15°–64°18°
- Low, likely
- 29°−2°–41°5°
- Typical high / low
- 65°18° / 31°−1°
- Wind
- 11 mph18 km/h, gusts 25 mph40 km/h
- UV peak
- 5
Tomorrow, Oct 25. Cloudy. High 65°18°, low 35°2°. Typical 64°18° / 31°−1°. Dry. Mostly agree.
Morning
6 AM–noon
Partly sunny, 32°0°Dry
Afternoon
noon–6 PM
Cloudy, 63°17°Dry
Evening
6 PM–midnight
Mostly cloudy, 46°8°Dry
Overnight
midnight–6 AM
Clear, 37°3°Dry
Official NWS forecast
Day: Widespread frost before 9am. Mostly sunny. High near 65, with temperatures falling to around 60 in the afternoon. Southeast wind 1 to 6 mph.
Night: Mostly cloudy, with a low around 35. South southwest wind 3 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 59°15°–65°18°
- Low, likely
- 32°0°–45°7°
- Typical high / low
- 64°18° / 31°−1°
- Wind
- 10 mph16 km/h, gusts 27 mph44 km/h
- UV peak
- 4
Monday, Oct 26. Mostly sunny. High 59°15°, low 24°−4°. Typical 63°17° / 30°−1°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 36°2°Dry
Afternoon
noon–6 PM
Sunny, 54°12°Dry
Evening
6 PM–midnight
Clear, 40°4°Dry
Overnight
midnight–6 AM
Clear, 32°0°Dry
Official NWS forecast
Day: Areas of frost between 7am and 9am. Sunny, with a high near 59. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Night: Widespread frost after 10pm. Mostly clear, with a low around 24.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 51°11°–59°15°
- Low, likely
- 24°−4°–36°2°
- Typical high / low
- 63°17° / 30°−1°
- Wind
- 16 mph26 km/h, gusts 38 mph62 km/h
- UV peak
- 5
Tuesday, Oct 27. Mostly sunny. High 63°17°, low 29°−2°. Typical 63°17° / 30°−1°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 31°0°Dry
Afternoon
noon–6 PM
Sunny, 58°15°Dry
Evening
6 PM–midnight
Clear, 40°5°Dry
Overnight
midnight–6 AM
Clear, 30°−1°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Widespread frost before 10am. Sunny, with a high near 63.
Night: Mostly clear, with a low around 29.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 53°12°–63°17°
- Low, likely
- 29°−2°–32°0°
- Typical high / low
- 63°17° / 30°−1°
- Wind
- 11 mph17 km/h, gusts 27 mph44 km/h
- UV peak
- 5
Wednesday, Oct 28. Cloudy. High 61°16°, low 31°−1°. Typical 62°17° / 30°−1°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 31°−1°Dry
Afternoon
noon–6 PM
Sunny, 60°15°Dry
Evening
6 PM–midnight
Cloudy, 44°6°Dry
Overnight
midnight–6 AM
Cloudy, 41°5°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 61.
Night: Mostly cloudy, with a low around 31.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 54°12°–62°17°
- Low, likely
- 28°−2°–31°−1°
- Typical high / low
- 62°17° / 30°−1°
- Wind
- 10 mph15 km/h, gusts 18 mph29 km/h
- UV peak
- 4
Thursday, Oct 29. Cloudy. High 56°13°, low 29°−2°. Typical 62°17° / 30°−1°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 39°4°Dry
Afternoon
noon–6 PM
Sunny, 54°12°Dry
Evening
6 PM–midnight
Clear, 39°4°Dry
Overnight
midnight–6 AM
Mostly clear, 34°1°20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain after 5pm. Partly sunny, with a high near 56.
Night: A slight chance of rain before 5am, then a slight chance of rain and snow. Mostly cloudy, with a low around 29.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 50°10°–57°14°
- Low, likely
- 29°−2°–36°2°
- Typical high / low
- 62°17° / 30°−1°
- Wind
- 11 mph17 km/h, gusts 35 mph56 km/h
- UV peak
- 3
Friday, Oct 30. Snow. High 51°11°, low 27°−3°. Typical 61°16° / 30°−1°. Snow 0.03 in0.8 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 36°2°Dry
Afternoon
noon–6 PM
Partly sunny, 49°9°20% chance
Evening
6 PM–midnight
Cloudy, 37°3°30% chance
Overnight
midnight–6 AM
Cloudy, 30°−1°30% chance · 0.02 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow. Mostly sunny, with a high near 51.
Night: A chance of rain before 8pm, then a chance of rain and snow. Mostly cloudy, with a low around 27. Little or no snow accumulation expected.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 44°7°–52°11°
- Low, likely
- 27°−3°–33°1°
- Typical high / low
- 61°16° / 30°−1°
- Wind
- 14 mph23 km/h, gusts 36 mph57 km/h
- UV peak
- 4
Saturday, Oct 31. Cloudy. High 46°8°, low 26°−3°. Typical 60°16° / 30°−1°. Rain 0.13 in3.3 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Mostly sunny, 30°−1°30% chance · 0.2 in0.6 cm
Afternoon
noon–6 PM
Sunny, 48°9°20% chance · 0.01 in0.3 mm
Evening
6 PM–midnight
Clear, 34°1°Dry
Overnight
midnight–6 AM
Clear, 25°−4°Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 39°4°–55°13°
- Low, likely
- 22°−6°–29°−2°
- Typical high / low
- 60°16° / 30°−1°
- Wind
- 7 mph12 km/h, gusts 27 mph43 km/h
- UV peak
- 4
Sunday, Nov 1. Cloudy. High 50°10°, low 24°−4°. Typical 60°16° / 30°−1°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 28°−2°Dry
Afternoon
noon–6 PM
Mostly sunny, 52°11°Dry
Evening
6 PM–midnight
Clear, 39°4°Dry
Overnight
midnight–6 AM
Clear, 30°−1°Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 42°6°–58°14°
- Low, likely
- 18°−8°–31°−1°
- Typical high / low
- 60°16° / 30°−1°
- Wind
- 6 mph10 km/h, gusts 14 mph22 km/h
- UV peak
- 4
Monday, Nov 2. Rain. High 47°8°, low 28°−2°. Typical 59°15° / 30°−1°. Rain 0.32 in8.1 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Mostly sunny, 36°2°Dry
Afternoon
noon–6 PM
Rain, 47°8°20% chance · 0.12 in3 mm
Evening
6 PM–midnight
Rain, 40°5°20% chance · 0.1 in2.6 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 43°6°–55°13°
- Low, likely
- 22°−6°–37°3°
- Typical high / low
- 59°15° / 30°−1°
- Wind
- 6 mph9 km/h, gusts 20 mph32 km/h
The outlook
Today
Dry, high 63°, low 32°.
Tomorrow
Dry, high 65°, low 35°.
Monday
Dry, high 59°, low 24°, cooling off.
Rest of week
Mostly dry, highs 46–63°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (STO) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view
Rivers
NOAA river gauges within 25 mi
Below flood stage
Spanish Creek above Keddie
12 mi- Level
- 1.1 ft
- Flow
- 37 cfs
Reading from Sat 11:30 AM · NWS gauge page
Indian Creek below Indian Falls
15 mi- Level
- 3111 ft
- Flow
- 73 cfs
Reading from Sat 12 PM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 70% less heating than a typical week.
This week 38Typical 129
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 29
- h below 17°F
- 0
- h below 5°F
- 0
47, 17 and 5°F are the test points heat pumps are rated at. About 5 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 32°F).
Open the windows?
Today, 2:00 PM–5:00 PM
Good stretch to open the windows.
Is this typical?
Quincy · official normals 1991–2020 · records 1895–2026
Oct 24, today vs a typical year
Today’s expected high is 2°1° colder than typical.
- Normal high / low
- 65°18° / 31°−1°
- Forecast high / low
- 63°17° / 32°0°
- Record high
- 88°31° in 1917
- Record low
- 18°−8° in 1945
Last 7 days vs normal
On average 4°2° warmer than normal (daily mean temperature).
- +6°+3°SunOct 18
- +4°+2°MonOct 19
- +5°+3°TueOct 20
- +6°+3°WedOct 21
- —ThuOct 22
- +4°+2°FriOct 23
- −1°SatOct 24
Greenhorn weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:23 AM, sunset 6:10 PM.
- Daylight
- 10 h 47 min
- Losing 2 min 21 s a day; shortest Dec 21, 1 h 27 min less
- Golden hour
- 5:33–6:27 PM
- Morning 7:06–8:00 AM
- Blue hour
- 6:27–6:38 PM
- Morning 6:55–7:06 AM; first light 6:55 AM
Stars tonight? Fair
Mostly clear 6:38–11 PM, but the moon is 99% lit and up.
Moon
Waxing gibbous
98% lit · growing
- Today
- sets 5:43 AM · rises 5:10 PM
- Full moon
- Oct 25
- New moon
- Nov 8
