Madison River below Ennis Lake near McAllister
6.4 mi- Level
- 3.8 ft
- Flow
- 1,230 cfs
Reading from Sat 2 AM · NWS gauge page
1 active weather alert
Special Weather Statement
Ends in 1 h 2 min
- When
- Until 5:30 AM
- Where
- East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County; Northern Blaine County; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys; 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
With the rain and snowfall yesterday, patchy dense fog is developing over portions of North Central and Southwest MT.
Visibility is below a half mile in some areas.
Those traveling early this morning should be alert for quickly changing visibility conditions.
Reminder, reduce your driving speeds in areas of poor visibility.
Areas: East Glacier Park Region; Northern High Plains; Eastern Glacier, Western Toole, and Central Pondera; Eastern Toole and Liberty; Hill County; Northern Blaine County; Southern Rocky Mountain Front; Southern High Plains; Eastern Pondera and Eastern Teton; Western and Central Chouteau County; Bears Paw Mountains and Southern Blaine; Cascade County below 5000ft; Judith Basin County and Judith Gap; Fergus County below 4500ft; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Little Belt and Highwood Mountains; Snowy and Judith Mountains; Helena Valley; Big Belt, Bridger and Castle Mountains; Meagher County Valleys; 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)
Observed 3:55 AM MDT at KEKS
Norris, MT weather
Mostly clear and 25°−4°, 16°9° colder than usual, freeze watch tonight, low 22°−6°.
Today: low 22°−6° (likely 20°−7° to 22°−6°), high 40°4° (likely 40°4° to 41°5°).
Now 25°−4°
Mostly clear
- Wind
- Calm
- Light through 4 PM
- Dew point
- 23°−5°
- Dry · up to 31°−1° by 11 AM
- Humidity
- 93%
- Air 25°−4°, dew point 23°−5° · frost likely
- UV index
- 3Moderate
- Moderate 12–3 PM · peak 3
Next 48 hours
Good hours for
TonightNear 25°−4° · freezing, low 24°−4°
This morningUp to 31°−1° by 11 AM · freezing, low 22°−6°
This afternoonUp to 39°4° by 5 PM
TonightDown to 26°−3° by 4 AM · freezing, low 26°−3°
Tomorrow morningUp to 32°0° by 11 AM · freezing, low 24°−4°
Tomorrow afternoonUp to 39°4° by 5 PM
Tomorrow nightDown to 26°−3° by 3 AM · freezing, low 26°−3°
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 4a | Fog | 25°−4° (likely 23°−5° to 25°−4°) | 25°−4° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 5a | Fog | 24°−4° (likely 22°−6° to 24°−4°) | 24°−4° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 6a | Fog | 24°−4° (likely 21°−6° to 24°−4°) | 24°−4° | 0% | 1 mph2 km/h from S | 100% | — | — |
| Sat 7a | Fog | 22°−6° (likely 20°−7° to 22°−6°) | 22°−6° | 0% | 2 mph3 km/h from S | 100% | — | 0 |
| Sat 8a | Fog | 23°−5° (likely 20°−7° to 23°−5°) | 23°−5° | 0% | 2 mph3 km/h from S | 100% | — | 0 |
| Sat 9a | Fog | 24°−4° (likely 22°−6° to 24°−4°) | 24°−4° | 0% | 2 mph3 km/h from S | 100% | — | 0 |
| Sat 10a | Fog | 28°−2° (likely 27°−3° to 28°−2°) | 28°−2° | 0% | 0 mph0 km/h | 100% | — | 1 |
| Sat 11a | Fog | 31°−1° (likely 31°−1° to 31°−1°) | 31°−1° | 0% | 0 mph0 km/h | 100% | — | 2 |
| Sat 12p | Sunny | 34°1° (likely 34°1° to 34°1°) | 34°1° | 0% | 0 mph0 km/h | 99% | — | 3 |
| Sat 1p | Sunny | 36°2° (likely 36°2° to 37°3°) | 36°2° | 0% | 0 mph0 km/h | 100% | — | 3 |
| Sat 2p | Mostly sunny | 38°3° (likely 38°3° to 39°4°) | 38°3° | 0% | 0 mph0 km/h | 99% | — | 3 |
| Sat 3p | Mostly sunny | 38°3° (likely 38°3° to 40°4°) | 38°3° | 0% | 0 mph0 km/h | 100% | — | 2 |
| Sat 4p | Mostly sunny | 38°3° (likely 38°3° to 41°5°) | 38°3° | 0% | 0 mph0 km/h | 100% | — | 1 |
| Sat 5p | Mostly sunny | 39°4° (likely 39°4° to 40°4°) | 39°4° | 0% | 0 mph0 km/h | 100% | — | 1 |
| Sat 6p | Mostly clear | 37°3° (likely 36°2° to 37°3°) | 37°3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 7p | Mostly clear | 35°2° (likely 33°1° to 35°2°) | 35°2° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 8p | Mostly clear | 34°1° (likely 31°−1° to 34°1°) | 34°1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 9p | Mostly clear | 31°−1° (likely 30°−1° to 31°−1°) | 31°−1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 10p | Mostly clear | 30°−1° (likely 30°−1° to 30°−1°) | 30°−1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sat 11p | Mostly clear | 29°−2° (likely 29°−2° to 29°−2°) | 29°−2° | 0% | 0 mph0 km/h | 99% | — | — |
| Sun 12a | Partly cloudy | 28°−2° (likely 28°−2° to 29°−2°) | 28°−2° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 1a | Mostly clear | 28°−2° (likely 28°−2° to 28°−2°) | 28°−2° | 0% | 0 mph0 km/h | 98% | — | — |
| Sun 2a | Mostly clear | 28°−2° (likely 28°−2° to 28°−2°) | 28°−2° | 0% | 0 mph0 km/h | 97% | — | — |
| Sun 3a | Mostly clear | 27°−3° (likely 27°−3° to 28°−2°) | 27°−3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 4a | Mostly clear | 26°−3° (likely 26°−3° to 28°−2°) | 26°−3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 5a | Mostly clear | 26°−3° (likely 26°−3° to 28°−2°) | 26°−3° | 0% | 0 mph0 km/h | 99% | — | — |
| Sun 6a | Partly cloudy | 26°−3° (likely 26°−3° to 28°−2°) | 26°−3° | 0% | 0 mph0 km/h | 99% | — | — |
| Sun 7a | Partly cloudy | 26°−3° (likely 26°−3° to 27°−3°) | 26°−3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 8a | Partly sunny | 24°−4° (likely 24°−4° to 26°−3°) | 24°−4° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 9a | Partly sunny | 26°−3° (likely 26°−3° to 28°−2°) | 26°−3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 10a | Partly sunny | 30°−1° (likely 30°−1° to 31°−1°) | 30°−1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 11a | Partly sunny | 32°0° (likely 32°0° to 33°1°) | 32°0° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 12p | Partly sunny | 34°1° (likely 34°1° to 35°2°) | 34°1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 1p | Partly sunny | 36°2° (likely 36°2° to 36°2°) | 36°2° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 2p | Partly sunny | 37°3° (likely 37°3° to 37°3°) | 37°3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 3p | Partly sunny | 38°3° (likely 38°3° to 38°3°) | 38°3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 4p | Partly sunny | 38°3° (likely 38°3° to 39°4°) | 38°3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 5p | Partly sunny | 39°4° (likely 38°3° to 39°4°) | 39°4° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 6p | Partly cloudy | 37°3° (likely 35°2° to 37°3°) | 37°3° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 7p | Partly cloudy | 34°1° (likely 34°1° to 34°1°) | 34°1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 8p | Partly cloudy | 33°1° (likely 33°1° to 33°1°) | 33°1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 9p | Mostly clear | 32°0° (likely 32°0° to 32°0°) | 32°0° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 10p | Mostly clear | 31°−1° (likely 31°−1° to 31°−1°) | 31°−1° | 0% | 0 mph0 km/h | 100% | — | — |
| Sun 11p | Mostly clear | 29°−2° (likely 29°−2° to 29°−2°) | 29°−2° | 0% | 0 mph0 km/h | 100% | — | — |
| Mon 12a | Partly cloudy | 28°−2° (likely 28°−2° to 28°−2°) | 28°−2° | 0% | 0 mph0 km/h | 100% | — | — |
| Mon 1a | Partly cloudy | 27°−3° (likely 27°−3° to 27°−3°) | 27°−3° | 0% | 0 mph0 km/h | 100% | — | — |
| Mon 2a | Partly cloudy | 27°−3° (likely 27°−3° to 27°−3°) | 27°−3° | 0% | 0 mph0 km/h | 100% | — | — |
| Mon 3a | Partly cloudy | 26°−3° (likely 26°−3° to 26°−3°) | 26°−3° | 0% | 0 mph0 km/h | 100% | — | — |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Fog. High 40°4°, low 22°−6°. Typical 56°13° / 36°2°. Dry. One forecast only.
Morning
6 AM–noon
Fog, 23°−5°Dry
Afternoon
noon–6 PM
Mostly sunny, 39°4°Dry
Evening
6 PM–midnight
Mostly clear, 34°1°Dry
Overnight
midnight–6 AM
Mostly clear, 26°−3°Dry
Official NWS forecast
Today: Areas of fog before noon. Sunny, with a high near 40. South wind around 2 mph.
Tonight: Areas of fog. Partly cloudy, with a low around 22. Wind around 0 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 40°4°–41°5°
- Low, likely
- 20°−7°–22°−6°
- Typical high / low
- 56°13° / 36°2°
- Wind
- 4 mph6 km/h
Tomorrow, Oct 25. Partly sunny. High 39°4°, low 23°−5°. Typical 55°13° / 36°2°. Dry. One forecast only.
Morning
6 AM–noon
Partly sunny, 24°−4°Dry
Afternoon
noon–6 PM
Partly sunny, 39°4°Dry
Evening
6 PM–midnight
Mostly clear, 33°1°Dry
Overnight
midnight–6 AM
Partly cloudy, 26°−3°Dry
Official NWS forecast
Day: Mostly sunny, with a high near 39. Wind around 0 mph.
Night: Partly cloudy, with a low around 23. Wind around 0 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 39°4°
- Low, likely
- 23°−5°–26°−3°
- Typical high / low
- 55°13° / 36°2°
- Wind
- 3 mph5 km/h
Monday, Oct 26. Partly sunny. High 48°9°, low 30°−1°. Typical 55°13° / 36°2°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 48. Wind around 0 mph.
Night: A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 30. South southwest wind 0 to 3 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 47°8°–48°9°
- Low, likely
- 28°−2°–30°−1°
- Typical high / low
- 55°13° / 36°2°
- Wind
- 4 mph7 km/h
Tuesday, Oct 27. Snow. High 43°6°, low 26°−3°. Typical 54°12° / 35°2°. Snow 0.11 in2.8 mm, 70% chance. One forecast only.
Official NWS forecast
Day: Rain and snow likely before noon, then rain and snow likely. Mostly cloudy, with a high near 43. South southwest wind 2 to 8 mph, with gusts as high as 18 mph.
Night: A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 26. Little or no snow accumulation expected.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 43°6°–45°7°
- Low, likely
- 26°−3°–32°0°
- Typical high / low
- 54°12° / 35°2°
- Wind
- 10 mph15 km/h
Wednesday, Oct 28. Partly sunny. High 44°7°, low 26°−3°. Typical 54°12° / 35°2°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 44.
Night: Partly cloudy, with a low around 26.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 44°7°–48°9°
- Low, likely
- 26°−3°–29°−2°
- Typical high / low
- 54°12° / 35°2°
- Wind
- 8 mph12 km/h
Thursday, Oct 29. Partly sunny. High 44°7°, low 27°−3°. Typical 54°12° / 35°2°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 44.
Night: A slight chance of rain and snow. Mostly cloudy, with a low around 27.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 44°7°–46°8°
- Low, likely
- 27°−3°–31°−1°
- Typical high / low
- 54°12° / 35°2°
- Wind
- 5 mph7 km/h
Friday, Oct 30. Snow. High 46°8°, low 31°−1°. Typical 53°12° / 35°2°. Snow 0.2 in5.1 mm, 30% chance. One forecast only.
Official NWS forecast
Day: A slight chance of snow before noon, then a chance of rain. Partly sunny, with a high near 46.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 40°4°–46°8°
- Low, likely
- 31°−1°
- Typical high / low
- 53°12° / 35°2°
- Wind
- 4 mph6 km/h
The outlook
Today
Dry, high 40°, low 22°.
Tomorrow
Dry, high 39°, low 23°.
Monday
Dry, high 48°, low 30°, warming up.
Rest of week
Highs 43–46°; chance of precipitation on Tuesday.
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
Madison River above Powerplant near McAllister
6.6 mi- Level
- 3.1 ft
- Flow
- 2,940 cfs
Reading from Sat 2:45 AM · NWS gauge page
Willow Creek (Southwest MT) near Harrison
11 mi- Level
- 1.8 ft
Reading from Sat 12:15 AM · NWS gauge page
Gallatin River near Gallatin Gateway
21 mi- Level
- 1.5 ft
- Flow
- 424 cfs
Reading from Sat 3 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: 22°−6°
Overnight low near 22°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.
Heating this week
About 52% less heating than a typical week.
This week 67Typical 141
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 47
- 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 32 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 23°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.
Open the windows?
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Is this typical?
Norris Madison Power House · official normals 1991–2020 · records 1907–2026
Oct 24, today vs a typical year
Today’s expected high is 16°9° colder than typical.
- Normal high / low
- 56°13° / 36°2°
- Forecast high / low
- 40°4° / 22°−6°
- Record high
- 76°24° in 1933
- Record low
- 8°−13° in 1919
Last 7 days vs normal
On average 8°5° warmer than normal (daily mean temperature).
- +8°+4°SunOct 18
- +8°+4°MonOct 19
- +8°+4°TueOct 20
- +8°+4°WedOct 21
- +12°+6°ThuOct 22
- +7°+4°FriOct 23
- —SatOct 24
Norris weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:55 AM, sunset 6:25 PM.
- Daylight
- 10 h 30 min
- Losing 2 min 58 s a day; shortest Dec 21, 1 h 48 min less
- Golden hour
- 5:44–6:44 PM
- Morning 7:36–8:37 AM
- Blue hour
- 6:44–6:56 PM
- Morning 7:25–7:36 AM; first light 7:25 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 6:10 AM · rises 5:26 PM
- Full moon
- Oct 25
- New moon
- Nov 9
