Triple-digit heat Wednesday, then storms for Lamar and Prowers County
Lamar and Prowers County start the forecast period with triple-digit heat, as Wednesday's high climbs to near 102 before a series of afternoon and evening thunderstorms moves through the region later in the week. Rain chances increase Thursday and Friday, offering a modest break from the heat, before hot and dry conditions return for the weekend. Forecasters are watching the eastern plains for a chance of strong to severe storms Thursday.
Wednesday is the hottest day of the week in Lamar, with sunny skies and a high near 102. A 10 percent chance of showers and thunderstorms develops after 4 p.m. Winds start light from the southwest and turn to the east-northeast in the afternoon, gusting earlier in the day. The overnight low drops to near 64, with a slight chance of storms before 10 p.m.
The National Weather Service in Pueblo expects daily storm chances through Friday. "Severe weather threat for the far eastern plains Thursday," a meteorologist with the National Weather Service in Pueblo wrote in Tuesday's Area Forecast Discussion, adding that damaging wind gusts and large hail would be the main concerns. Storms are expected to form over the mountains by midday and spread east across the plains through the afternoon.
Lamar, Colo. — Five-day forecast (July 8–12, 2026)
Source: National Weather Service, Pueblo — Issued July 7, 2026
| Period | Sky Conditions | High/Low | Wind |
|---|---|---|---|
| Wednesday | Sunny and hot; 10% chance of storms after 4 p.m. | High 102 | SW 5-10 mph, becoming ENE |
| Wednesday night | 20% chance of storms before 10 p.m.; mostly cloudy | Low 64 | E 5-15 mph |
| Thursday | Mostly sunny; 30% chance of storms after noon | High 96 | NW 5-15 mph, becoming ESE |
| Thursday night | Showers likely and possibly a storm before midnight | Low 61 | ESE 5-15 mph |
| Friday | Sunny; 20% chance of storms after noon | High 94 | N 5-10 mph, becoming E 10-15 |
| Friday night | 40% chance of storms before midnight; partly cloudy | Low 60 | E 5-10 mph |
| Saturday | Sunny | High 97 | E 5-15 mph |
| Saturday night | Mostly clear | Low 62 | ESE 5-15 mph |
| Sunday | Sunny | High 96 | ESE 5-15 mph |
| Sunday night | Mostly clear | Low 64 | SE 10-15 mph |
(Kiowa County Press)
Thursday and Friday
Thursday cools slightly to a high near 96 under mostly sunny skies, with a 30 percent chance of showers and thunderstorms after noon. Showers become likely Thursday night, with a low around 61 and rain chances near 70 percent.
Friday stays sunny with a high near 94 and a 20 percent chance of afternoon storms. Storm chances rise to about 40 percent Friday night before tapering off, with a low near 60.
Extended outlook
Hot and dry weather returns for the weekend as high pressure rebuilds over the region. Saturday brings sunny skies and a high near 97, and Sunday turns sunny again with a high near 96. Overnight lows stay in the low to mid 60s, and rain chances remain low into the start of next week.
Heat, fire concerns and a Thursday storm threat
With a high near 102 and low humidity Wednesday, hot and breezy conditions will keep fire danger elevated across Prowers County even though no formal red flag warning is in effect. Residents should use caution with anything that could spark a grass fire during the heat of the day.
The bigger weather story comes Thursday, when a stronger upper-level disturbance moves across Colorado. The Storm Prediction Center has much of the eastern plains, including Prowers County, in a marginal to slight risk for severe storms, with damaging wind gusts and large hail the primary threats. Storm chances continue Friday before drier air returns.
With triple-digit heat to open the week, residents are urged to stay hydrated, limit time outdoors during the hottest hours and check on elderly neighbors. Anyone outdoors Thursday afternoon should stay alert for rapidly developing storms.
