Salmon, ID Weather

Lemhi County3:09 PM MDT45.18°N, 113.90°WElevation 3,944 ft

Current conditions

Sunny
66°
Sunny
Feels like 66°
High 68°·Low 37°
WindSSE 3 mph gusts 10 mph
Humidity48%
Dew point46°
Visibility10 mi
Cloud cover12%
UV index3 Moderate
Sunrise8:00 AM
Sunset6:42 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • This Afternoon

    Sunny, with a high near 68. South wind around 3 mph.

  • Tonight

    Partly cloudy, with a low around 37. South wind around 1 mph.

  • Thursday

    Patchy fog before 10am. Mostly sunny, with a high near 69. South southeast wind 0 to 3 mph.

National Weather Service forecast updated 2 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 66°
  2. 4 PM Sunny 68°
  3. 5 PM Mostly Sunny 66°
  4. 6 PM Partly Cloudy 64°
  5. 7 PM Mostly Cloudy 59°
  6. 8 PM Mostly Cloudy 52°
  7. 9 PM Mostly Cloudy 49°
  8. 10 PM Partly Cloudy 47°
  9. 11 PM Partly Cloudy 45°
  10. Thu12 AM Partly Cloudy 44°
  11. 1 AM Partly Cloudy 42°
  12. 2 AM Mostly Clear 41°
  13. 3 AM Partly Cloudy 40°
  14. 4 AM Partly Cloudy 39°
  15. 5 AM Partly Cloudy 39°
  16. 6 AM Patchy Fog 39°
  17. 7 AM Patchy Fog 38°
  18. 8 AM Patchy Fog 37°
  19. 9 AM Patchy Fog 41°
  20. 10 AM Sunny 47°
  21. 11 AM Sunny 53°
  22. 12 PM Sunny 57°
  23. 1 PM Sunny 61°
  24. 2 PM Sunny 65°

10-day forecast

Details
  1. TodayOct 21 Sunny Sunny37°68°
  2. ThuOct 22 Patchy Fog then Mostly Sunny Patchy Fog then Mostly Sunny84%38°69°
  3. FriOct 23 Rain Rain98%25°49°
  4. SatOct 24 Mostly Sunny Mostly Sunny25°51°
  5. SunOct 25 Mostly Sunny Mostly Sunny13%26°56°
  6. MonOct 26 Mostly Sunny then Slight Chance Light Rain Mostly Sunny then Slight Chance Light Rain38%25°56°
  7. TueOct 27 Chance Light Rain Chance Light Rain29%23°52°
  8. WedOct 28 Light showers Light showers0.07 in32°47°
  9. ThuOct 29 Partly cloudy Partly cloudy32°48°
  10. FriOct 30 Partly cloudy Partly cloudy36°54°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Salmon

More weather news

Air quality

24
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • WedGood (33)
  • ThuGood (30)
  • FriGood (32)

Salmon, ID reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 8:00 AM
Sunset 6:42 PM
Daylight 10 h 41 min (−2 min 59 s tomorrow)
Waxing Gibbous · 80% lit
Moonrise 4:35 PM Moonset 2:53 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Record high80° (1915)
Record low14° (1945)
Wettest0.35 in (1914)
Month to date0.59 in (normal 0.00 in)

Salmon Lemhi County Ap, records since 1905. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Forecasters' discussion

From the National Weather Service office in MSO, issued 11 hrs ago

Discussion

KEY MESSAGES:

- Mild daytime temperatures through Thursday.

- Patchy valley fog around sunrise each morning.

- Significant weather change coming Thursday night into Friday.

Mild day-time temperatures will continue across the Northern Rockies through Thursday as high pressure remains in control. Stable conditions under the ridge are promoting the development of daily valley inversions and trapped cold air, with patchy dense fog. Afternoon temperatures will run around 10 degrees above normal for this time of year.

A significant change remains on track late Thursday into Friday, as a low pressure system and cold front tracks across the region. Colder temperatures and widespread precipitation, focused along and south of the Interstate 90 corridor and along the divide in northwest Montana are the main story. Precipitation amounts have trended higher over the last 48 hours, as model guidance has come into stronger consensus for a mid-level low to track along the divide in southwest Montana by Friday morning. Widespread precipitation will wrap around the west-northwest area of this low pointing towards the highest precipitation amounts (0.75-1.50 inches) along the divide across mountain ranges in southwest Montana. As discussed previously, most of the precipitation will fall as rain ahead of the cold front, limiting the potential for winter weather impacts. Snow levels will fall to around 5,000 feet Friday and lower over the weekend as shower activity begins to decrease. Therefore, forecast snow amounts will be generally under an inch across the region and above 5,000 feet. The exception is across higher peaks along the divide, where several inches of snow may fall above 7,000 feet.

Aviation

High pressure will continue to bring stable conditions. Valley inversions and cold air pools will set the stage for patchy areas of valley fog, particularly near large bodies of water and river systems. The primary period to watch will be from 21/1200-1500Z, including KGPI and KMSO. The probability of dense fog impacts at these terminals is generally less than 10 percent, but can not be ruled out.

Mso Watches

MT...None. ID...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.