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Caldwell, Idaho Weather Forecast
Caldwell, Idaho Weather
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Weather Forecast for Caldwell, Idaho : Canyon County
Issued: 10:39 pm MST Dec 18, 2025 Latitude: 43.6629384 Longitude: -116.6873596 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
30% chance of rain on Overnight 90% chance of rain on Friday Mostly Sunny on Saturday 90% chance of rain on Sunday 60% chance of rain on Monday 40% chance of rain on Tuesday 50% chance of rain on Wednesday 30% chance of rain on Christmas Day
Low: 40°F High: 54°F High: 43°F High: 47°F High: 50°F High: 49°F High: 52°F High: 49°F
Low: 25°F Low: 32°F Low: 38°F Low: 35°F Low: 37°F Low: 33°F  
Rain Rain Mostly Sunny Rain Rain Rain Rain Rain
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Current Conditions at
CALDWELL - (KEUL)
45°
Feels like 39°F
Cloudy
as of 12:56 AM MST
Rel. Humidity: 70%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
10 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 9500ft
Current Conditions at
BOISE - (KBOI)
46°
Feels like 40°F
Cloudy
as of 12:53 AM MST
Rel. Humidity: 61%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
14 MPH
110° East
Cloud Level(s): Solid Overcast at 9500ft
Current Conditions at
ONTARIO - (KONO)
34°
Mostly Cloudy
Mist
as of 12:53 AM MST
Rel. Humidity: 93%
Dew Point: 32°F
Visibility: 6 Miles
Pressure: 29.72 in.
Flight Rule: VFR
Wind Data
3 MPH
250° West
Cloud Level(s): Broken at 7500ft, Broken at 11000ft
Current Conditions at
MOUNTAIN HOME AFB - (KMUO)
37°
Feels like 28°F
Cloudy
as of 12:55 AM MST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: VFR
Wind Data
14 MPH
090° East
Cloud Level(s): Solid Overcast at 12000ft
30% chance of rain Overnight Overnight... A 30 percent chance of rain. Cloudy, with a low around 40. Southeast wind around 10 mph, with gusts as high as 22 mph.
90% chance of rain Friday Friday... Rain, mainly after 11am. High near 54. Southeast wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 90%.
30% chance of rain & snow Friday Night Friday Night... A chance of rain, mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 25. Northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 43. Calm wind becoming southeast around 5 mph in the afternoon.
40% chance of rain & snow Saturday Night Saturday Night... A chance of rain and snow after 11pm. Mostly cloudy, with a low around 32. Southeast wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
90% chance of rain Sunday Sunday... Rain. High near 47. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
90% chance of rain Sunday Night Sunday Night... Rain. Low around 38. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
60% chance of rain Monday Monday... Rain likely, mainly before 11am. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
50% chance of rain Monday Night Monday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 35.
40% chance of rain Tuesday Tuesday... A 40 percent chance of rain. Mostly cloudy, with a high near 49.
50% chance of rain Tuesday Night Tuesday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 37.
50% chance of rain Wednesday Wednesday... A 50 percent chance of rain. Mostly cloudy, with a high near 52.
40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 33.
30% chance of rain Christmas Day Christmas Day... A 30 percent chance of rain. Partly sunny, with a high near 49.
Current Radar Image


Sun Almanac for Caldwell, Idaho
Sunrise: 08:16 AM
Sunset: 5:12 PM
Civil Sunrise:07:43 AM
Civil Sunset: 5:45 PM
Nautical Sunrise: 07:07 AM
Nautical Sunset: 6:21 PM
Astro Sunrise: 06:32 AM
Astro Sunset: 6:56 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.