National Weather Service

News Headlines

SCN26-34: Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices: Effective May 6, 2026
Average Frost and Freeze Dates

Current conditions at

Joslin Field - Magic Valley Regional Airport (KTWF)

Lat: 42.4785°NLon: 114.47739°WElev: 4163.0ft.

Clear

75°F

24°C

Humidity	13%
Wind Speed	NW 10 MPH
Barometer	29.8 in (1009.14 mb)
Dewpoint	21°F (-6°C)
Visibility	10.00 mi
Last update	03 May 07:20 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Castleford ID

Tonight
Low: 46 °F
Partly Cloudy
Monday
High: 78 °F
Sunny
Monday Night
Low: 47 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 73 °F
Mostly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 40 °F
Mostly Clear
Wednesday
High: 74 °F
Sunny
Wednesday Night
Low: 49 °F
Mostly Clear
Thursday
High: 81 °F
Mostly Sunny
then Sunny
and Breezy
Thursday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

Tonight

Partly cloudy, with a low around 46. North wind 6 to 9 mph becoming southwest after midnight.

Monday

Sunny, with a high near 78. Southwest wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.

Monday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. West northwest wind 9 to 14 mph becoming east after midnight.

Tuesday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. East wind 9 to 17 mph becoming north in the afternoon.

Tuesday Night

Mostly clear, with a low around 40. Northwest wind 9 to 16 mph becoming east after midnight. Winds could gust as high as 25 mph.

Wednesday

Sunny, with a high near 74.

Wednesday Night

Mostly clear, with a low around 49.

Thursday

Sunny, with a high near 81. Breezy.

Thursday Night

Mostly clear, with a low around 48.

Friday

Sunny, with a high near 82.