Ruby River below Ruby Reservoir near Alder
5.5 mi- Level
- 2.4 ft
- Flow
- 70 cfs
Reading from Sun 11:45 AM · NWS gauge page
1 active weather alert
Special Weather Statement
Ends in 14 min
- When
- Until 12:45 PM
- Where
- Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
Issued for this forecast zone · National Weather Service Great Falls MT
Full alert textHide details
Patchy dense fog will continue to be a concern heading into the early afternoon hours. Expect highly variable visibility reductions down to a quarter of a mile or less.
Those traveling should be prepared for sharp visibility reductions across short distances. Also, frost deposition may cause isolated slippery spots on area roads. Use low beam head lights, slow down and allow extra time to reach your destination.
Areas: Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
See it on weather.gov (opens in a new tab)
Model estimate for 12:00 PM MDT (no recent station report)
Alder, MT weather
Mostly sunny and 40°4°, 10°6° colder than usual, freeze watch tonight, low 24°−4°.
Today: low 22°−6° (likely 22°−6° to 26°−3°), high 43°6° (likely 43°6° to 45°7°).
Now 40°4°
Mostly sunny
- Wind
- Calm
- Up to 6 mph10 km/h through 12 AM
- Dew point
- 33°1°
- Dry · down to 25°−4° by 11 PM
- UV index
- 2Low
- Moderate 1–3 PM · peak 3
Next 48 hours
Good hours for
This afternoonNear 40°4°
TonightDown to 24°−4° by 4 AM · freezing, low 24°−4°
Tomorrow morningUp to 41°5° by 11 AM · freezing, low 23°−5°
Tomorrow afternoonUp to 52°11° by 4 PM
Tomorrow nightDown to 32°0° by 5 AM · Rain 8 PM–midnight (90%) · freezing, low 32°0°
Tuesday morningUp to 35°2° by 11 AM · Snow all morning (30%) · freezing, low 30°−1°
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sun 12p | Mostly sunny | 40°4° (likely 40°4° to 40°4°) | 40°4° | 0% | 2 mph3 km/h from N | 77% | — | 2 |
| Sun 1p | Mostly sunny | 41°5° (likely 41°5° to 42°6°) | 41°5° | 0% | 2 mph3 km/h from N | 75% | — | 3 |
| Sun 2p | Mostly sunny | 42°6° (likely 42°6° to 44°7°) | 40°4° | 0% | 3 mph5 km/h from N | 72% | — | 3 |
| Sun 3p | Mostly sunny | 42°6° (likely 42°6° to 45°7°) | 40°4° | 0% | 3 mph5 km/h from N | 73% | — | 2 |
| Sun 4p | Mostly sunny | 41°5° (likely 41°5° to 44°7°) | 39°4° | 0% | 3 mph5 km/h from N | 75% | — | 1 |
| Sun 5p | Mostly sunny | 40°4° (likely 40°4° to 43°6°) | 37°3° | 0% | 5 mph8 km/h from N | 78% | — | 1 |
| Sun 6p | Mostly clear | 38°3° (likely 38°3° to 38°3°) | 36°2° | 0% | 3 mph5 km/h from NNE | 80% | — | — |
| Sun 7p | Partly cloudy | 32°0° (likely 32°0° to 34°1°) | 27°−3° | 0% | 5 mph8 km/h from E | 88% | — | — |
| Sun 8p | Partly cloudy | 29°−2° (likely 29°−2° to 33°1°) | 24°−4° | 0% | 5 mph8 km/h from SSE | 95% | — | — |
| Sun 9p | Partly cloudy | 27°−3° (likely 27°−3° to 32°0°) | 20°−7° | 0% | 6 mph10 km/h from SE | 97% | — | — |
| Sun 10p | Partly cloudy | 27°−3° (likely 27°−3° to 31°−1°) | 22°−6° | 0% | 5 mph8 km/h from SE | 94% | — | — |
| Sun 11p | Mostly cloudy | 27°−3° (likely 27°−3° to 30°−1°) | 22°−6° | 0% | 5 mph8 km/h from S | 93% | — | — |
| Mon 12a | Fog | 27°−3° (likely 27°−3° to 30°−1°) | 22°−6° | 0% | 5 mph8 km/h from SSE | 93% | — | — |
| Mon 1a | Fog | 26°−3° (likely 26°−3° to 29°−2°) | 20°−7° | 0% | 5 mph8 km/h from SSE | 97% | — | — |
| Mon 2a | Fog | 26°−3° (likely 26°−3° to 29°−2°) | 22°−6° | 0% | 3 mph5 km/h from S | 94% | — | — |
| Mon 3a | Fog | 25°−4° (likely 25°−4° to 29°−2°) | 21°−6° | 0% | 3 mph5 km/h from SSW | 97% | — | — |
| Mon 4a | Fog | 24°−4° (likely 24°−4° to 29°−2°) | 20°−7° | 0% | 3 mph5 km/h from SE | 98% | — | — |
| Mon 5a | Fog | 25°−4° (likely 25°−4° to 30°−1°) | 21°−6° | 0% | 3 mph5 km/h from SE | 96% | — | — |
| Mon 6a | Fog | 25°−4° (likely 25°−4° to 30°−1°) | 21°−6° | 0% | 3 mph5 km/h from SE | 98% | — | — |
| Mon 7a | Fog | 23°−5° (likely 23°−5° to 30°−1°) | 23°−5° | 0% | 2 mph3 km/h from SE | 98% | — | — |
| Mon 8a | Fog | 25°−4° (likely 25°−4° to 30°−1°) | 25°−4° | 0% | 2 mph3 km/h from SSE | 98% | — | — |
| Mon 9a | Fog | 29°−2° (likely 29°−2° to 34°1°) | 25°−4° | 0% | 3 mph5 km/h from SSE | 94% | — | — |
| Mon 10a | Fog | 36°2° (likely 36°2° to 38°3°) | 33°1° | 0% | 3 mph5 km/h from ESE | 82% | — | — |
| Mon 11a | Mostly cloudy | 41°5° (likely 41°5° to 42°6°) | 39°4° | 0% | 3 mph5 km/h from SSE | 75% | — | — |
| Mon 12p | Mostly cloudy | 44°7° (likely 44°7° to 45°7°) | 41°5° | 0% | 6 mph10 km/h from S | 71% | — | — |
| Mon 1p | Mostly cloudy | 46°8° (likely 46°8° to 47°8°) | 42°6° | 0% | 7 mph11 km/h from S | 66% | — | — |
| Mon 2p | Mostly cloudy | 50°10° (likely 48°9° to 50°10°) | 46°8° | 0% | 9 mph14 km/h from S | 60% | — | — |
| Mon 3p | Partly sunny | 51°11° (likely 49°9° to 51°11°) | 51°11° | 0% | 12 mph19 km/h from S | 58% | — | — |
| Mon 4p | Partly sunny | 52°11° (likely 48°9° to 52°11°) | 52°11° | 0% | 12 mph19 km/h from S | 57% | — | — |
| Mon 5p | Partly sunny | 52°11° (likely 47°8° to 52°11°) | 52°11° | 0% | 12 mph19 km/h from S | 57% | — | — |
| Mon 6p | Mostly cloudy | 47°8° (likely 42°6° to 47°8°) | 43°6° | 5%, 0.08 in2 mm | 8 mph13 km/h from S | 69% | — | — |
| Mon 7p | Mostly cloudy | 44°7° (likely 40°4° to 44°7°) | 39°4° | 10%, 0.08 in2 mm | 8 mph13 km/h from S | 74% | — | — |
| Mon 8p | Rain | 42°6° (likely 38°3° to 42°6°) | 37°3° | 40%, 0.08 in2 mm | 8 mph13 km/h from S | 80% | — | — |
| Mon 9p | Snow | 40°4° (likely 37°3° to 40°4°) | 33°1° | 90%, 0.08 in2 mm | 10 mph16 km/h from S | 78% | — | — |
| Mon 10p | Snow | 40°4° (likely 36°2° to 40°4°) | 33°1° | 70%, 0.08 in2 mm | 10 mph16 km/h from S | 81% | — | — |
| Mon 11p | Snow | 39°4° (likely 35°2° to 39°4°) | 32°0° | 80%, 0.08 in2 mm | 10 mph16 km/h from S | 82% | — | — |
| Tue 12a | Snow | 38°3° (likely 34°1° to 38°3°) | 31°−1° | 90%, snow 0.2 in0.5 cm | 10 mph16 km/h from SSW | 86% | — | — |
| Tue 1a | Snow | 37°3° (likely 37°3° to 37°3°) | 30°−1° | 80%, snow 0.2 in0.5 cm | 10 mph16 km/h from SSW | 90% | — | — |
| Tue 2a | Snow | 36°2° (likely 36°2° to 36°2°) | 29°−2° | 80%, snow 0.2 in0.5 cm | 10 mph16 km/h from SSW | 90% | — | — |
| Tue 3a | Snow | 34°1° (likely 34°1° to 34°1°) | 25°−4° | 70%, snow 0.2 in0.5 cm | 14 mph23 km/h from SW | 92% | — | — |
| Tue 4a | Snow | 33°1° (likely 33°1° to 33°1°) | 23°−5° | 60%, snow 0.2 in0.5 cm | 14 mph23 km/h from SW | 92% | — | — |
| Tue 5a | Snow | 32°0° (likely 32°0° to 32°0°) | 22°−6° | 40%, snow 0.2 in0.5 cm | 14 mph23 km/h from SW | 93% | — | — |
| Tue 6a | Snow | 30°−1° (likely 30°−1° to 30°−1°) | 20°−7° | 30%, snow 0.1 in0.3 cm | 12 mph19 km/h from WSW | 94% | — | — |
| Tue 7a | Snow | 30°−1° (likely 30°−1° to 30°−1°) | 20°−7° | 30%, snow 0.1 in0.3 cm | 12 mph19 km/h from WSW | 97% | — | — |
| Tue 8a | Snow | 30°−1° (likely 30°−1° to 30°−1°) | 20°−7° | 30%, snow 0.1 in0.3 cm | 12 mph19 km/h from WSW | 95% | — | — |
| Tue 9a | Snow | 31°−1° (likely 31°−1° to 31°−1°) | 22°−6° | 30%, snow 0.1 in0.3 cm | 10 mph16 km/h from SW | 90% | — | — |
| Tue 10a | Snow | 33°1° (likely 33°1° to 33°1°) | 25°−4° | 30%, snow 0.1 in0.3 cm | 10 mph16 km/h from SW | 85% | — | — |
| Tue 11a | Snow | 35°2° (likely 35°2° to 35°2°) | 27°−3° | 30%, snow 0.1 in0.3 cm | 10 mph16 km/h from SW | 80% | — | — |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 25. Mostly sunny. High 43°6°, low 22°−6°. Typical 53°12° / 28°−2°. Dry. One forecast only.
Afternoon
noon–6 PM
Mostly sunny, 42°6°Dry
Evening
6 PM–midnight
Partly cloudy, 29°−2°Dry
Overnight
midnight–6 AM
Fog, 24°−4°Dry
Official NWS forecast
Today: Sunny. High near 43, with temperatures falling to around 40 in the afternoon. North wind around 5 mph.
Tonight: Areas of fog after midnight. Partly cloudy. Low around 22, with temperatures rising to around 25 overnight. Southeast wind around 6 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 43°6°–45°7°
- Low, likely
- 22°−6°–26°−3°
- Typical high / low
- 53°12° / 28°−2°
- Wind
- 3 mph5 km/h
Tomorrow, Oct 26. Fog. High 53°12°, low 29°−2°. Typical 53°12° / 28°−2°. Dry. One forecast only.
Morning
6 AM–noon
Fog, 25°−4°Dry
Afternoon
noon–6 PM
Partly sunny, 52°11°Dry
Evening
6 PM–midnight
Snow, 42°6°90% chance · 0.48 in12 mm
Overnight
midnight–6 AM
Snow, 32°0°90% chance · 1.2 in3 cm
Official NWS forecast
Day: Areas of fog before 11am. Partly sunny, with a high near 53. South southeast wind 2 to 12 mph, with gusts as high as 23 mph.
Night: A chance of rain between 8pm and 9pm, then rain and snow between 9pm and midnight, then rain and snow. Mostly cloudy, with a low around 29. South southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of less than half an inch possible.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 49°9°–53°12°
- Low, likely
- 29°−2°
- Typical high / low
- 53°12° / 28°−2°
- Wind
- 8 mph13 km/h
Tuesday, Oct 27. Snow. High 43°6°, low 23°−5°. Typical 52°11° / 28°−2°. Snow 0.05 in1.3 mm, 30% chance. One forecast only.
Morning
6 AM–noon
Snow, 30°−1°30% chance · 0.6 in1.5 cm
Official NWS forecast
Day: A chance of snow before noon. Partly sunny, with a high near 43. Southwest wind 10 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Night: Partly cloudy, with a low around 23. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 40°4°–43°6°
- Low, likely
- 23°−5°–27°−3°
- Typical high / low
- 52°11° / 28°−2°
- Wind
- 10 mph16 km/h
Wednesday, Oct 28. Mostly sunny. High 45°7°, low 25°−4°. Typical 52°11° / 27°−3°. Dry. One forecast only.
Official NWS forecast
Day: Sunny, with a high near 45. South wind 7 to 14 mph, with gusts as high as 26 mph.
Night: Mostly clear, with a low around 25. South southeast wind 10 to 18 mph, with gusts as high as 32 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 41°5°–45°7°
- Low, likely
- 25°−4°
- Typical high / low
- 52°11° / 27°−3°
- Wind
- 10 mph16 km/h
Thursday, Oct 29. Partly sunny. High 48°9°, low 26°−3°. Typical 52°11° / 27°−3°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 48.
Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 26.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 47°8°–48°9°
- Low, likely
- 26°−3°
- Typical high / low
- 52°11° / 27°−3°
- Wind
- 4 mph7 km/h
Friday, Oct 30. Snow. High 46°8°, low 25°−4°. Typical 51°11° / 27°−3°. Snow 0.05 in1.3 mm, 40% chance. One forecast only.
Official NWS forecast
Day: A chance of rain and snow. Partly sunny, with a high near 46.
Night: A chance of rain and snow. Mostly cloudy, with a low around 25.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 46°8°–47°8°
- Low, likely
- 25°−4°–33°1°
- Typical high / low
- 51°11° / 27°−3°
- Wind
- 4 mph6 km/h
Saturday, Oct 31. Snow. High 46°8°, low 25°−4°. Typical 51°11° / 26°−3°. Snow 0.09 in2.3 mm, 30% chance. One forecast only.
Official NWS forecast
Day: A chance of snow before 9am, then a chance of rain and snow. Partly sunny, with a high near 46.
Night: A chance of rain and snow. Mostly cloudy, with a low around 25.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 44°7°–46°8°
- Low, likely
- 25°−4°–34°1°
- Typical high / low
- 51°11° / 26°−3°
- Wind
- 4 mph6 km/h
The outlook
Today
Dry, high 43°, low 22°.
Tomorrow
Dry, high 53°, low 29°, warming up.
Tuesday
31% chance of snow, high 43°, low 23°, cooling off.
Rest of week
Mostly dry, highs 45–48°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (TFX) (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
Ruby River above Ruby Reservoir near Alder
9.1 mi- Level
- 3.0 ft
- Flow
- 109 cfs
Reading from Sun 11:45 AM · NWS gauge page
Ruby River near Twin Bridges
17 mi- Level
- 3.0 ft
- Flow
- 252 cfs
Reading from Sun 11:45 AM · NWS gauge page
Beaverhead River near Twin Bridges
17 mi- Level
- 3.5 ft
Reading from Sun 11:15 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Pipes: watch the cold
Tonight’s low: 24°−4°
Overnight low near 24°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.
Heating this week
About 67% less heating than a typical week.
This week 58Typical 178
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 43
- 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 20 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 33°F).
Open the windows?
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Is this typical?
Virginia City · official normals 1991–2020 · records 1893–2026
Oct 25, today vs a typical year
Today’s expected high is 10°6° colder than typical.
- Normal high / low
- 53°12° / 28°−2°
- Forecast high / low
- 43°6° / 22°−6°
- Record high
- 71°22° in 1990
- Record low
- −2°−19° in 2020
Last 7 days vs normal
On average 2°1° warmer than normal (daily mean temperature).
- +9°+5°MonOct 19
- +8°+4°TueOct 20
- +11°+6°WedOct 21
- +1°±0°ThuOct 22
- −17°−9°FriOct 23
- —SatOct 24
- —SunOct 25
Alder weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:58 AM, sunset 6:26 PM.
- Daylight
- 10 h 28 min
- Losing 2 min 53 s a day; shortest Dec 21, 1 h 44 min less
- Golden hour
- 5:44–6:44 PM
- Morning 7:39–8:39 AM
- Blue hour
- 6:44–6:56 PM
- Morning 7:27–7:39 AM; first light 7:27 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Full moon
100% lit · growing
- Today
- sets 7:29 AM · rises 5:51 PM
- Full moon
- Today, 10:12 PM
- New moon
- Nov 9
