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Letha, ID Weather

It is 61°F and clear in Letha, ID, observed at 5:05 PM MDT. Today: Partly Sunny, high 57°F, low 36°F. Hourly and 10-day forecast from the National Weather Service. Times are local (MDT).

Letha, ID current weather

61°F

Clear

H 57° / L 36°Feels like 61°

  • No rain expected in the next 12 hours

Observed at Caldwell - Caldwell Industrial Airport (17.6 mi away), 10/30/2026, 5:05 PM MDT

Hourly forecast

NWS, updated 10/30/2026, 11:31 AM PT

  1. Now57°
  2. 6 PM55°
  3. 7 PM51°
  4. 8 PM48°
  5. 9 PM46°
  6. 10 PM44°
  7. 11 PM42°
  8. 12 AM41°Sat
  9. 1 AM40°
  10. 2 AM39°
  11. 3 AM38°10%
  12. 4 AM38°11%
  13. 5 AM37°12%
  14. 6 AM37°12%
  15. 7 AM36°12%
  16. 8 AM36°13%
  17. 9 AM37°14%
  18. 10 AM40°14%
  19. 11 AM46°12%
  20. 12 PM49°11%
  21. 1 PM52°15%
  22. 2 PM54°25%
  23. 3 PM55°39%
  24. 4 PM56°54%
  25. 5 PM56°64%
  26. 6 PM54°68%
  27. 7 PM51°68%
  28. 8 PM49°67%
  29. 9 PM48°70%
  30. 10 PM47°75%
  31. 11 PM46°80%
  32. 12 AM46°82%Sun
  33. 1 AM45°80%
  34. 1 AM45°74%
  35. 2 AM45°69%
  36. 3 AM44°66%
  37. 4 AM44°66%
  38. 5 AM44°67%
  39. 6 AM43°64%
  40. 7 AM43°56%
  41. 8 AM44°46%
  42. 9 AM46°36%
  43. 10 AM49°30%
  44. 11 AM51°28%
  45. 12 PM53°26%
  46. 1 PM54°23%
  47. 2 PM55°17%
  48. 3 PM55°10%

10-day forecast

Tap a day for details

  • Today10/3012% chance of precipitationLow 36°High 57°

    This Afternoon: Partly sunny, with a high near 57. East northeast wind around 5 mph.

    Tonight: Patchy fog after 11pm. Partly cloudy, with a low around 36. Northeast wind 0 to 5 mph.

    Partly Sunny
  • Sat10/3182% chance of precipitationLow 43°High 56°

    Saturday: Patchy fog before 11am, then rain showers likely. Mostly cloudy, with a high near 56. Northwest wind around 2 mph. Chance of precipitation is 60%.

    Saturday Night: Rain showers likely before 10pm, then rain showers and areas of fog. Cloudy, with a low around 43. West northwest wind 0 to 3 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

    Patchy Fog then Rain Showers Likely
  • Sun11/164% chance of precipitationLow 34°High 56°

    Sunday: Rain showers likely and areas of fog before 3pm. Mostly cloudy, with a high near 56. West northwest wind 3 to 13 mph. Chance of precipitation is 60%.

    Sunday Night: Areas of fog after 2am. Partly cloudy, with a low around 34.

    Rain Showers Likely
  • Mon11/2Low 36°High 55°

    Monday: Areas of fog before 9am. Sunny, with a high near 55.

    Monday Night: Patchy fog between 2am and 3am. Partly cloudy, with a low around 36.

    Areas Of Fog then Sunny
  • Tue11/3Low 35°High 57°

    Tuesday: Areas of fog before 9am. Partly sunny, with a high near 57.

    Tuesday Night: Areas of fog after midnight. Partly cloudy, with a low around 35.

    Areas Of Fog then Partly Sunny
  • Wed11/413% chance of precipitationLow 36°High 57°

    Wednesday: Areas of fog before 9am. Mostly sunny, with a high near 57.

    Wednesday Night: Patchy fog after 2am. Partly cloudy, with a low around 36.

    Areas Of Fog then Mostly Sunny
  • Thu11/513% chance of precipitationLow 36°High 58°

    Thursday: Areas of fog before 9am. Mostly sunny, with a high near 58.

    Thursday Night: Patchy fog between 2am and 5am. Partly cloudy, with a low around 36.

    Areas Of Fog then Mostly Sunny
  • Fri11/6Model blend24% chance of precipitationLow 34°High 58°

    Friday: Partly cloudy, slight chance of rain. High near 58°. Low that night near 34°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blendLow 36°High 58°

    Saturday: Partly cloudy. High near 58°. Low that night near 36°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blendLow 38°High 59°

    Sunday: Partly cloudy. High near 59°. Low that night near 38°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 43.894, -116.646 from the NWS BOI office, updated 10/30/2026, 11:31 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KEUL (Caldwell Ind Arpt, 18 mi), model run 10/30/2026, 2:00 PM MDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now57°Partly Sunny5%5 mph
  2. 6 PM55°Mostly Cloudy4%5 mph
  3. 7 PM51°Mostly Cloudy4%3 mph
  4. 8 PM48°Partly Cloudy5%3 mph
  5. 9 PM46°Partly Cloudy6%2 mph
  6. 10 PM44°Mostly Clear6%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Letha, ID right now?
The latest observation from Caldwell - Caldwell Industrial Airport was 61°F and clear, reported at 10/30/2026, 5:05 PM MDT.
What is the high temperature today in Letha, ID?
The National Weather Service forecast for this afternoon calls for a high near 57°F. Partly Sunny.
Will it rain in Letha, ID in the next 24 hours?
The hourly forecast shows a 54% chance of precipitation around 10/31/2026, 4:00 PM MDT.
What is the 10-day forecast for Letha, ID?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs of 58°F to 59°F. Model guidance this far out often changes.
What time is sunrise and sunset in Letha, ID today?
Sunrise is about 8:20 AM MDT and sunset is about 6:39 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Letha, ID?
At Emmett 2 E, the 1991 to 2020 normal high in October is 65°F and the normal low is 38°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.23 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

Idaho hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Boise)
35GoodPM2.5
AQI forecast tomorrow (Boise)
39GoodPM2.5

UV index guide · Air quality

Drought

By county

Gem County, week of 10/27/2026

2% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
8:20 AM
Sunset
6:39 PM
Daylight
10 hr 19 min
Moon
Waning Gibbous 76% lit
First light (civil dawn)
7:50 AM
Last light (civil dusk)
7:09 PM
Moonrise
10:16 PM
Moonset
1:49 PM

Normal October weather

Climate

Normal October high 65°, low 38°, precipitation 0.90 in for the month. 1991 to 2020 normals at Emmett 2 E, 9 mi away.

Other places nearby

Data sources

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About this data

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