Idaho Forecast: Warmer Midweek, Showers Likely

The US National Weather Service in Boise, Idaho has issued the following forecast for the remainder of the week. Temperatures will trend warmer by midweek with a chance of showers each day except for Wednesday. There is also a slight chance of thunderstorms later in the week.

For Tuesday, May 20th, Baker City is expected to have a morning low of 37°F and an afternoon high of 58°F; Boise will see lows of 45°F and highs of 64°F; Burns will have lows of 32°F and highs of 60°F; Caldwell is forecast with lows of 45°F and highs of 66°F; and Fairfield is set for a low of 32°F and a high of 58°F.

On Wednesday, May 21st, Baker City’s forecast is a low of 30°F with a high of 66°F, while Boise is expected to reach a low of 40°F and a high of 70°F. Burns is forecast for a low of 30°F and a high of 65°F. Caldwell will see a low of 40°F and a high of 70°F, and Fairfield will experience a low of 27°F and a high of 63°F.

Thursday, May 22nd brings warmer conditions. In Baker City, temperatures will range from a low of 40°F to a high of 62°F. Boise will have a low of 51°F and a high of 73°F. Burns is expected to be between 40°F and 66°F, while Caldwell will have a range from 49°F to 74°F. Fairfield’s temperatures are forecast from 36°F to 68°F.

For Friday, May 23rd, Baker City is expected to have a low of 35°F and a high of 69°F. Boise will see temperatures from 46°F to 76°F. Burns is forecast with a low of 45°F and a high of 68°F, while Caldwell will range between 45°F and 78°F. Fairfield is expected to have a low of 32°F and a high of 72°F.

On Saturday, May 24th, Baker City’s forecast is a low of 39°F and a high of 68°F. In Boise, the temperatures will range from 50°F to 75°F. Burns is set for a low of 38°F with a high of 67°F, Caldwell will see a low of 49°F and a high of 77°F, and Fairfield’s forecast did not include Saturday’s temperatures.



Source: US National Weather Service Boise Idaho

Source Type: Weather

Source Location:

May 19, 2025 at 10:00 PM Weather

Caldwell

3833 S Development Ave, # 3807, Boise, ID

https://www.facebook.com/777243701113931/posts/1138332285005069

Light Snow, Freezing Rain Arrives in Idaho, Oregon

Cold front brings light snow, brief freezing rain, and travel caution.

Jan 27, 2026 at 12:04 PM Weather

Dense Fog Advisory Covers Large Idaho Area

Dense fog advisory affects western Magic Valley and surrounding Idaho regions.

Jan 18, 2026 at 6:42 PM Weather

Treasure Valley YMCA Launches New Homeschool Program

Treasure Valley Family YMCA launches homeschool programs offering education, fitness, social interaction.

Jan 12, 2026 at 1:05 PM Community

Boise Fry Company Adds Drive-Thru in Caldwell

Boise Fry Company unveils drive-thru service in Caldwell for quick, convenient orders.

Jan 6, 2026 at 3:39 PM Restaurant

Winter Mix: Rain in Valleys, Snow in Mountains

Warm, rainy conditions inland, with wintry mix possible in mountain areas.

Jan 3, 2026 at 8:24 AM Weather

Idaho Weather: Chilly Start, Frontal Rain Threat

Chilly, dry start; front brings 30-60% precipitation mid to late week.

Dec 28, 2025 at 8:28 PM Weather

Treasure Valley YMCA Offers $10K High School Scholarship

YMCA awards up to $10k for Treasure Valley public high school seniors.

Dec 28, 2025 at 1:09 PM Community

Idaho Forecast: Rain with Mountain Snow Friday

Idaho weather forecast: rain this week, then mountain snow with Friday cooling.

Dec 22, 2025 at 4:30 PM Weather

Idaho Forecast: Widespread Rain, Mild Conditions

Forecast predicts widespread precipitation and above-normal temperatures all week.

Dec 20, 2025 at 4:46 PM Weather

YMCA Launches Youth Dungeons & Dragons Club

Caldwell YMCA hosts a Dungeons & Dragons club for kids aged 10-16.

Dec 14, 2025 at 4:05 PM Community