Snake River near Jackson
4.5 mi- Level
- 1.3 ft
- Flow
- 1,570 cfs
Forecast peak 1.3 ft Sat 6 PM
Reading from Sat 11:30 AM · NWS gauge page
Appearance
Observed 1:00 PM MDT at KJAC
Overcast and 43°6°, freeze watch tonight, low 24°−4°.
Today: low 23°−5° (likely 23°−5° to 36°2°), high 50°10° (likely 48°9° to 52°11°).
Now 43°6°
Cloudy
Light snow now, through the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 1p | Cloudy | 46°8° (likely 45°7° to 49°9°) | 44°7° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 68% | 65% | 3 |
| Sat 2p | Mostly sunny | 48°9° (likely 47°8° to 50°10°) | 45°7° | 0% | 6 mph10 km/h from E, gusts 9 mph15 km/h | 59% | 47% | 2 |
| Sat 3p | Sunny | 50°10° (likely 48°9° to 51°11°) | 48°9° | 0% | 6 mph10 km/h from E, gusts 10 mph15 km/h | 51% | 45% | 2 |
| Sat 4p | Sunny | 50°10° (likely 48°9° to 51°11°) | 48°9° | 0% | 6 mph10 km/h from E, gusts 8 mph12 km/h | 46% | 31% | 1 |
| Sat 5p | Sunny | 50°10° (likely 47°8° to 50°10°) | 48°9° | 0% | 5 mph8 km/h from ENE, gusts 9 mph15 km/h | 44% | 21% | 1 |
| Sat 6p | Mostly clear | 46°8° (likely 43°6° to 48°9°) | 45°7° | 0% | 3 mph5 km/h from NE, gusts 9 mph15 km/h | 58% | 17% | 1 |
| Sat 7p | Mostly clear | 42°6° (likely 40°4° to 44°7°) | 42°6° | 0% | 2 mph3 km/h from N, gusts 9 mph15 km/h | 72% | 11% | 0 |
| Sat 8p | Clear | 37°3° (likely 37°3° to 42°6°) | 37°3° | 0% | 2 mph3 km/h from NNE, gusts 8 mph12 km/h | 77% | 2% | 0 |
| Sat 9p | Clear | 35°2° (likely 34°1° to 41°5°) | 35°2° | 0% | 2 mph3 km/h from N, gusts 8 mph13 km/h | 83% | 6% | 0 |
| Sat 10p | Clear | 33°1° (likely 32°0° to 40°4°) | 33°1° | 0% | 2 mph3 km/h from N, gusts 11 mph17 km/h | 86% | 9% | 0 |
| Sat 11p | Clear | 32°0° (likely 31°−1° to 40°4°) | 32°0° | 0% | 2 mph3 km/h from NW, gusts 10 mph16 km/h | 86% | 10% | 0 |
| Sun 12a | Clear | 31°−1° (likely 30°−1° to 39°4°) | 31°−1° | 0% | 2 mph3 km/h from NW, gusts 8 mph13 km/h | 89% | 10% | 0 |
| Sun 1a | Clear | 30°−1° (likely 29°−2° to 39°4°) | 30°−1° | 0% | 2 mph3 km/h from NW, gusts 5 mph8 km/h | 89% | 9% | 0 |
| Sun 2a | Clear | 29°−2° (likely 29°−2° to 39°4°) | 29°−2° | 0% | 2 mph3 km/h from NNW, gusts 4 mph7 km/h | 87% | 9% | 0 |
| Sun 3a | Clear | 28°−2° (likely 28°−2° to 38°3°) | 28°−2° | 0% | 1 mph2 km/h from N, gusts 3 mph4 km/h | 87% | 16% | 0 |
| Sun 4a | Clear | 26°−3° (likely 26°−3° to 38°3°) | 26°−3° | 0% | 2 mph3 km/h from NNW, gusts 3 mph5 km/h | 88% | 11% | 0 |
| Sun 5a | Clear | 26°−3° (likely 26°−3° to 38°3°) | 26°−3° | 0% | 2 mph3 km/h from N, gusts 3 mph5 km/h | 91% | 17% | 0 |
| Sun 6a | Partly cloudy | 25°−4° (likely 25°−4° to 37°3°) | 25°−4° | 0% | 2 mph3 km/h from NNW, gusts 3 mph5 km/h | 90% | 57% | 0 |
| Sun 7a | Fog | 24°−4° (likely 24°−4° to 37°3°) | 24°−4° | 0% | 2 mph3 km/h from N, gusts 3 mph5 km/h | 93% | 43% | 0 |
| Sun 8a | Sunny | 24°−4° (likely 24°−4° to 37°3°) | 24°−4° | 0% | 2 mph3 km/h from N, gusts 3 mph5 km/h | 97% | 21% | 0 |
| Sun 9a | Sunny | 26°−3° (likely 26°−3° to 39°4°) | 26°−3° | 0% | 1 mph2 km/h from E, gusts 3 mph4 km/h | 98% | 21% | 0 |
| Sun 10a | Partly sunny | 34°1° (likely 34°1° to 43°6°) | 34°1° | 0% | 1 mph2 km/h from NNW, gusts 3 mph4 km/h | 88% | 56% | 1 |
| Sun 11a | Cloudy | 39°4° (likely 39°4° to 46°8°) | 39°4° | 0% | 2 mph3 km/h from N, gusts 4 mph7 km/h | 74% | 60% | 2 |
| Sun 12p | Cloudy | 44°7° (likely 44°7° to 50°10°) | 44°7° | 0% | 1 mph2 km/h from N, gusts 7 mph11 km/h | 63% | 67% | 3 |
| Sun 1p | Mostly sunny | 49°9° (likely 49°9° to 54°12°) | 49°9° | 5% | 1 mph2 km/h from NW, gusts 6 mph9 km/h | 58% | 48% | 4 |
| Sun 2p | Partly sunny | 51°11° (likely 51°11° to 56°13°) | 51°11° | 5% | 1 mph2 km/h from W, gusts 5 mph8 km/h | 51% | 40% | 4 |
| Sun 3p | Partly sunny | 53°12° (likely 51°11° to 57°14°) | 53°12° | 5% | 2 mph3 km/h from SW, gusts 5 mph8 km/h | 47% | 50% | 3 |
| Sun 4p | Mostly cloudy | 53°12° (likely 49°9° to 56°13°) | 53°12° | 5% | 3 mph5 km/h from S, gusts 5 mph8 km/h | 45% | 60% | 2 |
| Sun 5p | Mostly cloudy | 52°11° (likely 46°8° to 55°13°) | 52°11° | 5% | 3 mph5 km/h from S, gusts 5 mph9 km/h | 47% | 63% | 1 |
| Sun 6p | Cloudy | 48°9° (likely 43°6° to 51°11°) | 46°8° | 10% | 5 mph8 km/h from SE, gusts 6 mph10 km/h | 61% | 70% | 0 |
| Sun 7p | Cloudy | 44°7° (likely 41°5° to 48°9°) | 42°6° | 10% | 3 mph5 km/h from E, gusts 14 mph23 km/h | 76% | 89% | 0 |
| Sun 8p | Cloudy | 39°4° (likely 39°4° to 46°8°) | 36°2° | 5% | 5 mph8 km/h from E, gusts 13 mph21 km/h | 81% | 89% | 0 |
| Sun 9p | Cloudy | 37°3° (likely 37°3° to 45°7°) | 33°1° | 5% | 5 mph8 km/h from E, gusts 11 mph18 km/h | 87% | 93% | 0 |
| Sun 10p | Partly cloudy | 36°2° (likely 36°2° to 44°7°) | 32°0° | 5% | 5 mph8 km/h from E, gusts 10 mph16 km/h | 89% | 76% | 0 |
| Sun 11p | Partly cloudy | 35°2° (likely 35°2° to 44°7°) | 31°−1° | 5% | 5 mph8 km/h from E, gusts 9 mph15 km/h | 90% | 80% | 0 |
| Mon 12a | Cloudy | 35°2° (likely 34°1° to 44°7°) | 31°−1° | 0% | 5 mph8 km/h from E, gusts 9 mph14 km/h | 93% | 76% | 0 |
| Mon 1a | Mostly cloudy | 34°1° (likely 34°1° to 43°6°) | 30°−1° | 0% | 5 mph8 km/h from ESE, gusts 9 mph14 km/h | 94% | 57% | 0 |
| Mon 2a | Clear | 33°1° (likely 33°1° to 42°6°) | 30°−1° | 0% | 3 mph5 km/h from ESE, gusts 9 mph14 km/h | 93% | 32% | 0 |
| Mon 3a | Cloudy | 31°−1° (likely 31°−1° to 42°6°) | 28°−2° | 0% | 3 mph5 km/h from ESE, gusts 9 mph15 km/h | 94% | 75% | 0 |
| Mon 4a | Cloudy | 31°−1° (likely 31°−1° to 41°5°) | 28°−2° | 0% | 3 mph5 km/h from ESE, gusts 9 mph14 km/h | 96% | 78% | 0 |
| Mon 5a | Cloudy | 30°−1° (likely 30°−1° to 41°5°) | 30°−1° | 0% | 2 mph3 km/h from ESE, gusts 7 mph12 km/h | 99% | 78% | 0 |
| Mon 6a | Cloudy | 28°−2° (likely 28°−2° to 41°5°) | 28°−2° | 0% | 1 mph2 km/h from ESE, gusts 6 mph10 km/h | 100% | 73% | 0 |
| Mon 7a | Mostly cloudy | 29°−2° (likely 29°−2° to 41°5°) | 29°−2° | 0% | 1 mph2 km/h from ESE, gusts 4 mph6 km/h | 100% | 66% | 0 |
| Mon 8a | Cloudy | 29°−2° (likely 29°−2° to 38°3°) | 29°−2° | 0% | 1 mph2 km/h from SE, gusts 4 mph6 km/h | 100% | 65% | 0 |
| Mon 9a | Partly sunny | 30°−1° (likely 30°−1° to 41°5°) | 30°−1° | 0% | 2 mph3 km/h from SE, gusts 4 mph6 km/h | 100% | 61% | 0 |
| Mon 10a | Partly sunny | 35°2° (likely 35°2° to 46°8°) | 35°2° | 0% | 2 mph3 km/h from SE, gusts 5 mph8 km/h | 92% | 58% | 1 |
| Mon 11a | Partly sunny | 40°4° (likely 40°4° to 50°10°) | 40°4° | 0% | 1 mph2 km/h from SSE, gusts 8 mph13 km/h | 81% | 60% | 3 |
| Mon 12p | Partly sunny | 45°7° (likely 45°7° to 53°12°) | 45°7° | 0% | 1 mph2 km/h from S, gusts 9 mph14 km/h | 69% | 61% | 4 |
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Sunny, with a high near 50. East wind around 6 mph.
Tonight: Patchy fog after 5am. Mostly clear. Low around 23, with temperatures rising to around 26 overnight. North wind around 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
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Day: Widespread fog between 7am and 10am. Mostly sunny, with a high near 53. North northwest wind around 3 mph.
Night: Partly cloudy, with a low around 27. East southeast wind around 5 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
40% chance · 0.3 in0.8 cm
Overnight
midnight–6 AM
80% chance · 0.5 in1.2 cm
Official NWS forecast
Day: Mostly sunny, with a high near 53. South southeast wind around 3 mph.
Night: A chance of rain showers before 9pm, then rain and snow showers. Mostly cloudy, with a low around 26. South southeast wind 2 to 7 mph. Chance of precipitation is 80%. New snow accumulation of less than half an inch possible.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
70% chance · 0.03 in0.9 mm
Afternoon
noon–6 PM
60% chance · 0.02 in0.4 mm
Evening
6 PM–midnight
40% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Snow showers likely. Mostly cloudy, with a high near 42. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Night: Mostly cloudy, with a low around 21.
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: Partly sunny, with a high near 49.
Night: Partly cloudy, with a low around 24.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
30% chance
Afternoon
noon–6 PM
30% chance
Evening
6 PM–midnight
30% chance · 0.01 in0.3 mm
Overnight
midnight–6 AM
40% chance · 0.07 in1.7 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of snow showers before noon, then a slight chance of rain showers. Partly sunny, with a high near 52.
Night: A slight chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 28.
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
60% chance · 0.1 in2.5 mm
Evening
6 PM–midnight
60% chance · 0.07 in1.8 mm
Overnight
midnight–6 AM
40% chance · 0.04 in1.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain and snow showers likely. Mostly cloudy, with a high near 50.
Night: Rain showers likely before 9pm, then rain and snow showers likely. Mostly cloudy, with a low around 27. Little or no snow accumulation expected.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
40% chance · 0.06 in1.4 mm
Afternoon
noon–6 PM
40% chance · 0.05 in1.2 mm
Evening
6 PM–midnight
40% chance · 0.01 in0.3 mm
Overnight
midnight–6 AM
30% chance
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
30% chance
Afternoon
noon–6 PM
20% chance · 0.02 in0.4 mm
Evening
6 PM–midnight
20% chance
Overnight
midnight–6 AM
30% chance · 0.4 in0.9 cm
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
30% chance · 0.5 in1.2 cm
Afternoon
noon–6 PM
30% chance · 0.3 in0.8 cm
Evening
6 PM–midnight
20% chance · 0.08 in1.9 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.
Dry, high 50°, low 23°.
Dry, high 53°, low 27°, warming up.
Dry, high 53°, low 26°.
Highs 39–52°; chance of precipitation on Tuesday, Friday, Saturday.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (RIW) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 1.3 ft Sat 6 PM
Reading from Sat 11:30 AM · NWS gauge page
Forecast peak 1.9 ft Sat 6 PM
Reading from Sat 11:30 AM · NWS gauge page
Forecast peak 5521 ft Tue 5 AM
Reading from Sat 11:30 AM · NWS gauge page
Forecast peak 4.8 ft Sat 6 PM
Reading from Sat 11:30 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
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.
About 74% 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 24 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 34°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is about typical for the date.
On average 7°4° warmer than normal (daily mean temperature).
Hoback weather by month: normals, records, snow and freeze dates
Sunrise 7:48 AM, sunset 6:25 PM.
Mostly clear 6:54 PM–6 AM, but the moon is 99% lit and up.
Waxing gibbous
97% lit · growing