Missouri River below Hauser Dam near Helena
4.7 mi- Level
- 3.5 ft
Reading from Sat 8 AM · NWS gauge page
Appearance
Observed 9:35 AM MDT at KHLN
Sunny and 27°−3°, 9°5° colder than a typical Oct 24, freeze watch tonight, low 23°−5°.
Today: low 19°−7° (likely 19°−7° to 30°−1°), high 44°7° (likely 40°4° to 44°7°).
Now 27°−3°
Sunny · Feels like 23°−5°
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 10a | Sunny | 31°−1° (likely 28°−2° to 35°2°) | 27°−3° | 0% | 3 mph5 km/h from SE, gusts 11 mph17 km/h | 98% | 39% | 1 |
| Sat 11a | Sunny | 35°2° (likely 30°−1° to 37°3°) | 32°0° | 0% | 5 mph8 km/h from SE, gusts 12 mph19 km/h | 89% | 39% | 1 |
| Sat 12p | Mostly sunny | 39°4° (likely 34°1° to 39°4°) | 36°2° | 0% | 5 mph8 km/h from SE, gusts 13 mph20 km/h | 80% | 32% | 2 |
| Sat 1p | Sunny | 41°5° (likely 36°2° to 41°5°) | 39°4° | 0% | 3 mph5 km/h from SE, gusts 13 mph21 km/h | 77% | 9% | 3 |
| Sat 2p | Sunny | 43°6° (likely 38°3° to 43°6°) | 41°5° | 0% | 3 mph5 km/h from SE, gusts 12 mph20 km/h | 73% | 6% | 3 |
| Sat 3p | Sunny | 42°6° (likely 40°4° to 44°7°) | 40°4° | 0% | 3 mph5 km/h from SE, gusts 13 mph20 km/h | 72% | 1% | 2 |
| Sat 4p | Sunny | 42°6° (likely 40°4° to 44°7°) | 40°4° | 0% | 3 mph5 km/h from ESE, gusts 12 mph20 km/h | 70% | 11% | 1 |
| Sat 5p | Partly sunny | 43°6° (likely 39°4° to 44°7°) | 41°5° | 0% | 3 mph5 km/h from ESE, gusts 12 mph20 km/h | 66% | 41% | 1 |
| Sat 6p | Mostly clear | 42°6° (likely 37°3° to 42°6°) | 42°6° | 0% | 2 mph3 km/h from ESE, gusts 11 mph18 km/h | 67% | 40% | 0 |
| Sat 7p | Mostly clear | 38°3° (likely 35°2° to 39°4°) | 38°3° | 0% | 2 mph3 km/h from E, gusts 6 mph9 km/h | 80% | 48% | 0 |
| Sat 8p | Partly cloudy | 35°2° (likely 34°1° to 38°3°) | 35°2° | 0% | 1 mph2 km/h from E, gusts 5 mph8 km/h | 86% | 48% | 0 |
| Sat 9p | Partly cloudy | 30°−1° (likely 30°−1° to 35°2°) | 30°−1° | 0% | 2 mph3 km/h from E, gusts 3 mph4 km/h | 89% | 33% | 0 |
| Sat 10p | Partly cloudy | 29°−2° (likely 29°−2° to 35°2°) | 29°−2° | 0% | 1 mph2 km/h from E, gusts 2 mph3 km/h | 94% | 19% | 0 |
| Sat 11p | Partly cloudy | 27°−3° (likely 27°−3° to 34°1°) | 27°−3° | 0% | 1 mph2 km/h from ENE, gusts 2 mph4 km/h | 99% | 22% | 0 |
| Sun 12a | Clear | 26°−3° (likely 26°−3° to 33°1°) | 26°−3° | 0% | 1 mph2 km/h from ENE, gusts 3 mph5 km/h | 99% | 13% | 0 |
| Sun 1a | Partly cloudy | 25°−4° (likely 25°−4° to 33°1°) | 25°−4° | 0% | 1 mph2 km/h from NE, gusts 4 mph6 km/h | 100% | 17% | 0 |
| Sun 2a | Mostly clear | 25°−4° (likely 25°−4° to 33°1°) | 25°−4° | 0% | 1 mph2 km/h from NE, gusts 4 mph6 km/h | 100% | 43% | 0 |
| Sun 3a | Mostly clear | 25°−4° (likely 25°−4° to 33°1°) | 25°−4° | 0% | 2 mph3 km/h from NNE, gusts 5 mph7 km/h | 100% | 22% | 0 |
| Sun 4a | Mostly clear | 23°−5° (likely 23°−5° to 33°1°) | 23°−5° | 0% | 2 mph3 km/h from N, gusts 9 mph14 km/h | 100% | 21% | 0 |
| Sun 5a | Clear | 22°−6° (likely 22°−6° to 33°1°) | 22°−6° | 0% | 2 mph3 km/h from N, gusts 12 mph20 km/h | 100% | 19% | 0 |
| Sun 6a | Clear | 22°−6° (likely 22°−6° to 32°0°) | 22°−6° | 0% | 2 mph3 km/h from NNW, gusts 9 mph14 km/h | 100% | 30% | 0 |
| Sun 7a | Partly cloudy | 21°−6° (likely 21°−6° to 32°0°) | 21°−6° | 0% | 2 mph3 km/h from NNW, gusts 7 mph11 km/h | 100% | 53% | 0 |
| Sun 8a | Partly sunny | 20°−7° (likely 20°−7° to 32°0°) | 20°−7° | 0% | 2 mph3 km/h from NNW, gusts 8 mph12 km/h | 100% | 40% | 0 |
| Sun 9a | Mostly cloudy | 24°−4° (likely 24°−4° to 33°1°) | 24°−4° | 0% | 2 mph3 km/h from NW, gusts 11 mph18 km/h | 100% | 44% | 0 |
| Sun 10a | Mostly cloudy | 28°−2° (likely 28°−2° to 36°2°) | 28°−2° | 0% | 2 mph3 km/h from NW, gusts 12 mph19 km/h | 100% | 46% | 1 |
| Sun 11a | Partly sunny | 31°−1° (likely 31°−1° to 38°3°) | 31°−1° | 0% | 2 mph3 km/h from NW, gusts 12 mph20 km/h | 90% | 39% | 2 |
| Sun 12p | Partly sunny | 34°1° (likely 34°1° to 40°4°) | 34°1° | 0% | 2 mph3 km/h from NNW, gusts 13 mph21 km/h | 81% | 31% | 3 |
| Sun 1p | Partly sunny | 35°2° (likely 35°2° to 41°5°) | 35°2° | 0% | 2 mph3 km/h from NNW, gusts 13 mph22 km/h | 80% | 48% | 3 |
| Sun 2p | Partly sunny | 38°3° (likely 37°3° to 41°5°) | 38°3° | 0% | 2 mph3 km/h from NNW, gusts 14 mph23 km/h | 75% | 44% | 3 |
| Sun 3p | Sunny | 39°4° (likely 38°3° to 42°6°) | 37°3° | 0% | 3 mph5 km/h from NNW, gusts 15 mph24 km/h | 72% | 29% | 3 |
| Sun 4p | Partly sunny | 39°4° (likely 38°3° to 41°5°) | 37°3° | 0% | 3 mph5 km/h from NNW, gusts 15 mph24 km/h | 69% | 58% | 2 |
| Sun 5p | Partly sunny | 40°4° (likely 37°3° to 40°4°) | 38°3° | 0% | 3 mph5 km/h from NNW, gusts 16 mph25 km/h | 66% | 50% | 1 |
| Sun 6p | Mostly clear | 38°3° (likely 34°1° to 38°3°) | 36°2° | 0% | 3 mph5 km/h from NNW, gusts 15 mph25 km/h | 69% | 42% | 0 |
| Sun 7p | Mostly clear | 35°2° (likely 32°0° to 35°2°) | 32°0° | 0% | 3 mph5 km/h from NNW, gusts 12 mph19 km/h | 83% | 58% | 0 |
| Sun 8p | Mostly cloudy | 31°−1° (likely 31°−1° to 33°1°) | 28°−2° | 0% | 3 mph5 km/h from NNW, gusts 9 mph14 km/h | 90% | 55% | 0 |
| Sun 9p | Partly cloudy | 28°−2° (likely 28°−2° to 33°1°) | 28°−2° | 0% | 2 mph3 km/h from NNW, gusts 7 mph10 km/h | 93% | 61% | 0 |
| Sun 10p | Partly cloudy | 26°−3° (likely 26°−3° to 32°0°) | 26°−3° | 0% | 2 mph3 km/h from NNW, gusts 7 mph11 km/h | 96% | 76% | 0 |
| Sun 11p | Partly cloudy | 25°−4° (likely 25°−4° to 32°0°) | 25°−4° | 0% | 2 mph3 km/h from NNW, gusts 5 mph9 km/h | 99% | 89% | 0 |
| Mon 12a | Cloudy | 25°−4° (likely 25°−4° to 32°0°) | 25°−4° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 100% | 91% | 0 |
| Mon 1a | Cloudy | 25°−4° (likely 25°−4° to 32°0°) | 25°−4° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 100% | 91% | 0 |
| Mon 2a | Cloudy | 24°−4° (likely 24°−4° to 32°0°) | 24°−4° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 100% | 82% | 0 |
| Mon 3a | Cloudy | 24°−4° (likely 24°−4° to 32°0°) | 24°−4° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 100% | 86% | 0 |
| Mon 4a | Cloudy | 22°−6° (likely 22°−6° to 32°0°) | 22°−6° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 89% | 0 |
| Mon 5a | Cloudy | 21°−6° (likely 21°−6° to 32°0°) | 21°−6° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 92% | 0 |
| Mon 6a | Cloudy | 20°−7° (likely 20°−7° to 32°0°) | 20°−7° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 91% | 0 |
| Mon 7a | Cloudy | 21°−6° (likely 21°−6° to 32°0°) | 21°−6° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 100% | 72% | 0 |
| Mon 8a | Cloudy | 23°−5° (likely 23°−5° to 32°0°) | 23°−5° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 100% | 80% | 0 |
| Mon 9a | Cloudy | 26°−3° (likely 24°−4° to 34°1°) | 26°−3° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 98% | 90% | 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. Mostly sunny, with a high near 44. Southeast wind around 5 mph.
Tonight: Partly cloudy. Low around 19, with temperatures rising to around 22 overnight. East northeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
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 41. North northwest wind around 3 mph.
Night: Mostly cloudy, with a low around 19. North northwest wind 0 to 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
30% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 48. Southeast wind around 1 mph.
Night: A chance of rain before 3am, then a slight chance of snow. Mostly cloudy, with a low around 25. South southwest wind around 3 mph. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.02 in0.5 mm
Afternoon
noon–6 PM
30% chance
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. Partly sunny, with a high near 49. Southwest wind 1 to 5 mph.
Night: A chance of rain before 3am, then a chance of snow. Mostly cloudy, with a low around 23. West wind 3 to 7 mph. Little or no snow accumulation expected.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
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: A slight chance of snow before 3pm, then a slight chance of rain and snow. Mostly sunny, with a high near 46.
Night: A slight chance of snow. Partly cloudy, with a low around 20.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
30% chance · 0.01 in0.3 mm
Overnight
midnight–6 AM
30% chance · 0.02 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before noon. Partly sunny, with a high near 44.
Night: A slight chance of snow. Mostly cloudy, with a low around 20.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance · 0.2 in0.5 cm
Afternoon
noon–6 PM
30% chance · 0.04 in1 mm
Evening
6 PM–midnight
20% chance · 0.2 in0.4 cm
Overnight
midnight–6 AM
20% chance · 0.01 in0.3 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow before noon. Partly sunny, with a high near 47.
Night: A slight chance of rain and snow. Partly cloudy, with a low around 22.
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
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 19°.
Dry, high 41°, low 19°, cooling off.
Dry, high 48°, low 25°, warming up.
Highs 40–49°; 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 8 AM · NWS gauge page
Reading from Sat 8:15 AM · NWS gauge page
Reading from Sat 8:15 AM · NWS gauge page
Reading from Sat 8 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
Tonight’s low: 23°−5°
Overnight low near 23°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.
About 60% 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 13 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 21°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 9°5° colder than typical.
On average 5°3° warmer than normal (daily mean temperature).
Helena Valley Northeast weather by month: normals, records, snow and freeze dates
Sunrise 7:58 AM, sunset 6:24 PM.
Mostly clear 10 PM–2 AM, but the moon is 99% lit and up.
Waxing gibbous
97% lit · growing