Rain will fall across Lamar and Prowers County through the weekend, with a 100 percent chance of showers and possibly a thunderstorm Saturday and Saturday night, according to the National Weather Service in Pueblo. The rain ends Monday, and highs climb to near 70 by Tuesday.

Saturday starts with a chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10 a.m. The high is near 63. A south wind of 10 to 15 mph turns northeast in the afternoon, and gusts could reach 30 mph. The chance of rain is 100 percent, and a quarter to a half inch is possible.

Showers and possibly a thunderstorm continue Saturday night. The low is around 43, with north winds of 10 to 15 mph. The chance of rain stays at 100 percent, and a half to three quarters of an inch is possible. That is the largest rainfall amount in Lamar's five-day forecast.

Pueblo forecasters said the heavier rain is shifting onto the eastern plains this weekend. "Latest totals are now ranging from 1 to almost 2 inches of additional rain through the day, which lessens the flooding threat and becomes more of a beneficial rain," a meteorologist with the National Weather Service in Pueblo wrote in Saturday's Area Forecast Discussion. That range is for the whole Pueblo forecast area, not for Lamar alone.

Storms possible Saturday

Pueblo's Hazardous Weather Outlook, issued at 12:45 a.m. MDT Saturday, covers Lamar and Prowers County. It says widespread showers and thunderstorms are expected across the area Saturday and Saturday night. Some of the thunderstorms across the far eastern plains could become strong to severe. The main threats are wind gusts to 50 mph, small hail and cloud-to-ground lightning. The outlook adds that the stronger storms could produce wind gusts to 60 mph, hail up to one inch across, cloud-to-ground lightning and periods of moderate to heavy rainfall. Those are expected especially east and south of a line from Eads to La Junta to Trinidad. Lamar lies east of that line.

A cold front was forecast to drop south across the eastern plains through Saturday morning. Pueblo forecasters said it brings much colder air, with highs across the plains falling as much as 20 degrees. They also noted that the Storm Prediction Center has placed parts of the eastern plains in a Marginal risk for severe storms, and that the Weather Prediction Center has much of the forecast area in a Slight risk for excessive rainfall.

No watches, warnings or advisories were in effect for Prowers County as of 8 a.m. MDT Saturday, October 24, according to the weather service's list of active alerts.

The same storm brought serious flooding to southwest and south-central Colorado on Friday, far to the west of Prowers County. In a flood warning issued at 3:57 p.m. MDT Friday, the weather service in Grand Junction said several structures were flooded and numerous roads closed. That warning covered La Plata County, southwestern Hinsdale County and northwestern Archuleta County, including the Durango, Bayfield and Ignacio areas. In a flood warning issued at 10:44 p.m. MDT Friday, the Pueblo office said several roads were closed and housing areas evacuated along the Rio Grande near South Fork, Del Norte and Monte Vista. It said Highway 160 remained closed between South Fork and Wolf Creek Pass. No flood warning or watch was issued for Prowers County, and none is in effect. Pueblo forecasters said the upper-level low behind the storm would push into Arizona on Saturday, then shift north toward the northern Arizona border by evening. They expect it to move up into east-central Utah on Sunday and then slide east into Colorado Sunday evening.

Lamar, Colo. — Five-day forecast (October 24-28)

Source: National Weather Service, Pueblo — Issued 6:31 a.m. MDT October 24, 2026

(Kiowa County Press)

Sunday and Sunday night

Sunday brings showers, with thunderstorms also possible after noon. The high is near 60. Winds are light and variable, becoming southeast at 10 to 15 mph in the afternoon. The chance of rain is 80 percent, and a tenth to a quarter of an inch is possible, with higher amounts possible in thunderstorms. Showers are likely again Sunday night and a thunderstorm is possible, with mostly cloudy skies, a low around 45 and a 70 percent chance of rain. Pueblo forecasters called Sunday the coolest day of the forecast period across their area, with highs in the 50s for most places and nearing 60 for the far eastern plains.

Extended outlook

Monday is mostly sunny with a high near 68. South winds of 5 to 15 mph become west in the morning. Monday night is partly cloudy with a low around 38. Pueblo forecasters expect "lingering isolated to low end scattered showers across the far eastern plains through the morning" as the storm pulls away, though Lamar's own forecast lists no chance of rain for Monday.

Tuesday is sunny with a high near 69, the warmest day in the five-day forecast. Wednesday is sunny with a high near 66. Pueblo forecasters said conditions stay dry and temperatures stay near seasonal levels through the week as the Pacific moisture supply is shut down for a time.