Weather for Caldwell, Idaho
Current Weather
Five Day Weather Forecast
Wed
H: 101°F
L: 63°F
Thu
H: 96°F
L: 62°F
Fri
H: 102°F
L: 63°F
Sat
H: 103°F
L: 64°F
Sun
H: 100°F
L: 65°F
Air Quality
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 109 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:30 PM
Daylight: 15 hrs 16 mins
Moon Transit: 8:11 AM
Moonset: 3:29 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%
Best Times for Fishing or Hunting
Major Periods
7:41 AM - 10:11 AM4:26 PM - 6:56 PM
Minor Periods
2:59 PM - 4:29 PM12:40 AM - 2:10 AM
Action Rating: 2 out of 5
Red Flag Warning issued July 7 at 9:06PM MDT until July 8 at 8:00PM MDT by NWS Boise ID
Effective: Tue July 7, 2026, 9:06 PM
Expires: Wed July 8, 2026, 3:00 PM
...SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING OVER IDAHO ZONES... .Scattered thunderstorms are expected again across southern Idaho south of the Snake Basin to the Nevada border Wednesday afternoon. Expect gusty and erratic winds up to 50 mph in the vicinity of these thunderstorms. * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...From 1 PM to 8 PM MDT Wednesday. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 50 to 60 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly.
Red Flag Warning issued July 8 at 8:26AM MDT until July 8 at 8:00PM MDT by NWS Boise ID
Effective: Wed July 8, 2026, 8:26 AM
Expires: Wed July 8, 2026, 8:00 PM
...SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING OVER IDAHO ZONES... .Scattered thunderstorms are expected again across far southwestern Idaho and the western Magic Valley Wednesday afternoon. Expect gusty and erratic winds up to 55 mph in the vicinity of these thunderstorms. * AFFECTED AREA...In Idaho, Fire Weather Zones 423 Owyhee Mountains and 426 Southern Highlands. * TIMING...From 1 PM this afternoon to 8 PM MDT this evening. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 55 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly.
Red Flag Warning issued July 8 at 8:26AM MDT until July 8 at 8:00PM MDT by NWS Boise ID
Effective: Wed July 8, 2026, 8:26 AM
Expires: Wed July 8, 2026, 8:00 PM
...SCATTERED THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING OVER IDAHO ZONES... .Scattered thunderstorms are expected again across far southwestern Idaho and the western Magic Valley Wednesday afternoon. Expect gusty and erratic winds up to 55 mph in the vicinity of these thunderstorms. The National Weather Service in Boise has issued a Red Flag Warning for lightning, which is in effect from 1 PM this afternoon to 8 PM MDT this evening. * AFFECTED AREA...In Idaho, Fire Weather Zone 424 Western Twin Falls BLM. * TIMING...From 1 PM this afternoon to 8 PM MDT this evening. * THUNDERSTORMS...Scattered coverage with abundant lightning. * OUTFLOW WINDS...Gusty erratic winds up to 55 mph. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly.
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.34 μg/m3
Sulphur Dioxide: 0.52 μg/m3
Ozone: 84.21 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:30 PM
Daylight: 15 hrs 16 mins
Moon Transit: 8:11 AM
Moonset: 3:29 PM
Moon Phase: Last Quarter
Moon Illumination: 26.8%
Best Times for Fishing or Hunting
Major Periods
7:41 AM - 10:11 AM4:26 PM - 6:56 PM
Minor Periods
2:59 PM - 4:29 PM12:40 AM - 2:10 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 84.04 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:29 PM
Daylight: 15 hrs 15 mins
Moon Transit: 9:04 AM
Moonset: 4:48 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
8:34 AM - 11:04 AM5:20 PM - 7:50 PM
Minor Periods
4:18 PM - 5:48 PM1:06 AM - 2:36 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.29 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 88.67 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:29 PM
Daylight: 15 hrs 14 mins
Moon Transit: 10:01 AM
Moonset: 6:08 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%
Best Times for Fishing or Hunting
Major Periods
6:19 PM - 8:49 PM9:31 AM - 12:01 AM
Minor Periods
5:38 PM - 7:08 PM1:38 AM - 3:08 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.58 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 83.67 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:28 PM
Daylight: 15 hrs 12 mins
Moon Transit: 11:04 AM
Moonset: 7:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%
Best Times for Fishing or Hunting
Major Periods
7:24 PM - 9:54 PM10:34 AM - 1:04 PM
Minor Periods
6:56 PM - 8:26 PM2:21 AM - 3:51 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.64 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 59.86 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:28 PM
Daylight: 15 hrs 11 mins
Moon Transit: 12:11 AM
Moonset: 8:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%
Best Times for Fishing or Hunting
Major Periods
8:31 PM - 11:01 PM11:41 AM - 2:11 PM
Minor Periods
8:04 PM - 9:34 PM3:18 AM - 4:48 AM
Action Rating: 3 out of 5