Beaverhead River at Dillon
1.0 mi- Level
- 3.7 ft
Reading from Sat 4:15 AM · NWS gauge page
Appearance
Ends in 17 min
Issued for this forecast zone · National Weather Service Great Falls MT
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 4:45 AM MDT at KDLN
Clear and 25°−4°, freeze watch tonight, low 22°−6°.
Today: low 22°−6° (likely 22°−6° to 30°−1°), high 44°7° (likely 40°4° to 46°8°).
Now 25°−4°
Clear
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 5a | Clear | 23°−5° (likely 23°−5° to 31°−1°) | 18°−8° | 0% | 3 mph5 km/h from S, gusts 4 mph6 km/h | 100% | 12% | 0 |
| Sat 6a | Clear | 22°−6° (likely 22°−6° to 31°−1°) | 16°−9° | 0% | 5 mph8 km/h from S, gusts 4 mph7 km/h | 100% | 11% | 0 |
| Sat 7a | Clear | 22°−6° (likely 22°−6° to 31°−1°) | 16°−9° | 0% | 5 mph8 km/h from SSW, gusts 3 mph4 km/h | 100% | 14% | 0 |
| Sat 8a | Sunny | 22°−6° (likely 22°−6° to 31°−1°) | 15°−9° | 0% | 6 mph10 km/h from S, gusts 5 mph8 km/h | 100% | 18% | 0 |
| Sat 9a | Sunny | 23°−5° (likely 23°−5° to 32°0°) | 15°−9° | 0% | 6 mph10 km/h from S, gusts 5 mph8 km/h | 100% | 19% | 0 |
| Sat 10a | Sunny | 26°−3° (likely 26°−3° to 34°1°) | 22°−6° | 0% | 3 mph5 km/h from SSW, gusts 4 mph7 km/h | 100% | 15% | 1 |
| Sat 11a | Mostly sunny | 31°−1° (likely 31°−1° to 36°2°) | 28°−2° | 0% | 3 mph5 km/h from SSW, gusts 6 mph9 km/h | 89% | 16% | 1 |
| Sat 12p | Sunny | 33°1° (likely 33°1° to 39°4°) | 30°−1° | 0% | 3 mph5 km/h from SSW, gusts 6 mph9 km/h | 84% | 14% | 2 |
| Sat 1p | Sunny | 37°3° (likely 36°2° to 41°5°) | 37°3° | 0% | 2 mph3 km/h from SSW, gusts 6 mph10 km/h | 78% | 12% | 3 |
| Sat 2p | Sunny | 40°4° (likely 38°3° to 44°7°) | 40°4° | 0% | 2 mph3 km/h from S, gusts 6 mph9 km/h | 75% | 13% | 3 |
| Sat 3p | Sunny | 42°6° (likely 39°4° to 45°7°) | 42°6° | 0% | 2 mph3 km/h from S, gusts 5 mph8 km/h | 69% | 11% | 2 |
| Sat 4p | Sunny | 42°6° (likely 40°4° to 46°8°) | 42°6° | 0% | 2 mph3 km/h from S, gusts 4 mph7 km/h | 68% | 11% | 1 |
| Sat 5p | Mostly sunny | 43°6° (likely 40°4° to 46°8°) | 43°6° | 0% | 2 mph3 km/h from S, gusts 3 mph5 km/h | 68% | 44% | 1 |
| Sat 6p | Sunny | 41°5° (likely 38°3° to 44°7°) | 41°5° | 0% | 0 mph0 km/h, gusts 3 mph4 km/h | 75% | 2% | 1 |
| Sat 7p | Clear | 38°3° (likely 35°2° to 40°4°) | 38°3° | 0% | 2 mph3 km/h from ESE, gusts 4 mph7 km/h | 86% | 32% | 0 |
| Sat 8p | Clear | 34°1° (likely 34°1° to 38°3°) | 31°−1° | 0% | 3 mph5 km/h from W, gusts 3 mph5 km/h | 92% | 33% | 0 |
| Sat 9p | Mostly clear | 29°−2° (likely 29°−2° to 37°3°) | 24°−4° | 0% | 5 mph8 km/h from W, gusts 3 mph4 km/h | 92% | 12% | 0 |
| Sat 10p | Clear | 29°−2° (likely 29°−2° to 36°2°) | 24°−4° | 0% | 5 mph8 km/h from SSW, gusts 3 mph4 km/h | 91% | 6% | 0 |
| Sat 11p | Clear | 27°−3° (likely 27°−3° to 35°2°) | 22°−6° | 0% | 5 mph8 km/h from SSW, gusts 3 mph4 km/h | 93% | 1% | 0 |
| Sun 12a | Clear | 28°−2° (likely 28°−2° to 35°2°) | 23°−5° | 0% | 5 mph8 km/h from SSW, gusts 2 mph3 km/h | 89% | 1% | 0 |
| Sun 1a | Clear | 27°−3° (likely 27°−3° to 34°1°) | 23°−5° | 0% | 3 mph5 km/h from SSW, gusts 3 mph4 km/h | 90% | 6% | 0 |
| Sun 2a | Clear | 27°−3° (likely 27°−3° to 34°1°) | 23°−5° | 0% | 3 mph5 km/h from S, gusts 2 mph4 km/h | 89% | 6% | 0 |
| Sun 3a | Clear | 27°−3° (likely 27°−3° to 34°1°) | 23°−5° | 0% | 3 mph5 km/h from SSW, gusts 2 mph4 km/h | 89% | 7% | 0 |
| Sun 4a | Clear | 27°−3° (likely 27°−3° to 33°1°) | 23°−5° | 0% | 3 mph5 km/h from SW, gusts 3 mph4 km/h | 91% | 11% | 0 |
| Sun 5a | Partly cloudy | 26°−3° (likely 26°−3° to 33°1°) | 22°−6° | 0% | 3 mph5 km/h from SW, gusts 2 mph4 km/h | 90% | 45% | 0 |
| Sun 6a | Partly cloudy | 26°−3° (likely 26°−3° to 33°1°) | 22°−6° | 0% | 3 mph5 km/h from S, gusts 1 mph2 km/h | 90% | 30% | 0 |
| Sun 7a | Clear | 25°−4° (likely 25°−4° to 33°1°) | 21°−6° | 0% | 3 mph5 km/h from S, gusts 3 mph4 km/h | 92% | 35% | 0 |
| Sun 8a | Sunny | 24°−4° (likely 24°−4° to 33°1°) | 20°−7° | 0% | 3 mph5 km/h from S, gusts 3 mph4 km/h | 94% | 41% | 0 |
| Sun 9a | Sunny | 27°−3° (likely 24°−4° to 33°1°) | 27°−3° | 0% | 2 mph3 km/h from N, gusts 2 mph3 km/h | 93% | 40% | 0 |
| Sun 10a | Partly sunny | 32°0° (likely 29°−2° to 37°3°) | 32°0° | 0% | 2 mph3 km/h from N, gusts 2 mph3 km/h | 91% | 50% | 1 |
| Sun 11a | Partly sunny | 36°2° (likely 32°0° to 41°5°) | 36°2° | 0% | 2 mph3 km/h from N, gusts 3 mph5 km/h | 83% | 44% | 2 |
| Sun 12p | Sunny | 38°3° (likely 35°2° to 43°6°) | 38°3° | 0% | 2 mph3 km/h from NNE, gusts 4 mph7 km/h | 78% | 18% | 3 |
| Sun 1p | Sunny | 42°6° (likely 38°3° to 46°8°) | 42°6° | 0% | 2 mph3 km/h from NNE, gusts 5 mph9 km/h | 73% | 15% | 4 |
| Sun 2p | Mostly sunny | 43°6° (likely 40°4° to 47°8°) | 43°6° | 0% | 2 mph3 km/h from NNE, gusts 7 mph11 km/h | 73% | 20% | 4 |
| Sun 3p | Sunny | 44°7° (likely 42°6° to 49°9°) | 44°7° | 0% | 2 mph3 km/h from NE, gusts 7 mph12 km/h | 70% | 42% | 3 |
| Sun 4p | Mostly sunny | 45°7° (likely 42°6° to 49°9°) | 45°7° | 0% | 2 mph3 km/h from NE, gusts 7 mph12 km/h | 70% | 45% | 3 |
| Sun 5p | Mostly sunny | 44°7° (likely 41°5° to 48°9°) | 44°7° | 0% | 2 mph3 km/h from NE, gusts 8 mph12 km/h | 70% | 49% | 2 |
| Sun 6p | Partly cloudy | 42°6° (likely 39°4° to 46°8°) | 42°6° | 0% | 2 mph3 km/h from NNE, gusts 8 mph13 km/h | 78% | 55% | 1 |
| Sun 7p | Partly cloudy | 38°3° (likely 38°3° to 43°6°) | 38°3° | 0% | 2 mph3 km/h from NNE, gusts 9 mph15 km/h | 89% | 54% | 0 |
| Sun 8p | Partly cloudy | 34°1° (likely 34°1° to 41°5°) | 34°1° | 0% | 2 mph3 km/h from NNE, gusts 8 mph13 km/h | 95% | 60% | 0 |
| Sun 9p | Partly cloudy | 31°−1° (likely 31°−1° to 39°4°) | 31°−1° | 0% | 2 mph3 km/h from E, gusts 7 mph11 km/h | 96% | 61% | 0 |
| Sun 10p | Partly cloudy | 30°−1° (likely 30°−1° to 38°3°) | 30°−1° | 0% | 2 mph3 km/h from E, gusts 6 mph10 km/h | 96% | 65% | 0 |
| Sun 11p | Partly cloudy | 30°−1° (likely 29°−2° to 37°3°) | 30°−1° | 0% | 2 mph3 km/h from E, gusts 4 mph6 km/h | 95% | 59% | 0 |
| Mon 12a | Partly cloudy | 30°−1° (likely 27°−3° to 36°2°) | 30°−1° | 0% | 1 mph2 km/h from SSE, gusts 4 mph6 km/h | 94% | 60% | 0 |
| Mon 1a | Partly cloudy | 30°−1° (likely 19°−7° to 36°2°) | 30°−1° | 0% | 1 mph2 km/h from SSE, gusts 3 mph4 km/h | 94% | 61% | 0 |
| Mon 2a | Cloudy | 29°−2° (likely 18°−8° to 36°2°) | 29°−2° | 0% | 1 mph2 km/h from SSE, gusts 2 mph3 km/h | 94% | 70% | 0 |
| Mon 3a | Cloudy | 28°−2° (likely 17°−8° to 35°2°) | 28°−2° | 0% | 1 mph2 km/h from S, gusts 2 mph3 km/h | 94% | 80% | 0 |
| Mon 4a | Mostly cloudy | 28°−2° (likely 18°−8° to 35°2°) | 28°−2° | 0% | 1 mph2 km/h from S, gusts 2 mph3 km/h | 94% | 88% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Areas of fog before 11am. Sunny, with a high near 44. South southwest wind 2 to 6 mph.
Tonight: Areas of fog. Partly cloudy, with a low around 22. South wind around 3 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Day: Mostly sunny, with a high near 46. Northeast wind around 3 mph.
Night: Partly cloudy, with a low around 26. East southeast wind around 2 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
30% chance · 0.09 in2.2 mm
Overnight
midnight–6 AM
50% chance · 0.02 in0.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 52. South wind around 5 mph.
Night: A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 28. South wind around 8 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
50% chance · 0.1 in0.3 cm
Afternoon
noon–6 PM
30% chance · 0.01 in0.3 mm
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain and snow before 9am, then a chance of rain and snow. Partly sunny, with a high near 46. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Night: A chance of rain before midnight. Mostly cloudy, with a low around 24.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 46.
Night: Partly cloudy, with a low around 24.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 47.
Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 25.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
20% chance · 0.02 in0.6 mm
Overnight
midnight–6 AM
20% chance · 0.2 in0.5 cm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain and snow. Partly sunny, with a high near 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
20% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
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.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
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.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
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.
Dry, high 44°, low 22°.
Dry, high 46°, low 26°.
Dry, high 52°, low 28°, warming up.
Highs 42–48°; chance of precipitation on Tuesday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (TFX) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Reading from Sat 4:15 AM · NWS gauge page
Reading from Sat 3:15 AM · NWS gauge page
Reading from Sat 3:30 AM · NWS gauge page
Reading from Sat 3 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
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.
About 67% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 19 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 25°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.
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 7°4° colder than typical.
On average 11°6° warmer than normal (daily mean temperature).
Dillon weather by month: normals, records, snow and freeze dates
Sunrise 7:58 AM, sunset 6:30 PM.
Mostly clear 5:13–7:28 AM; moon 96% lit, sets 6:14 AM.
Waxing gibbous
96% lit · growing