Weather WorldArch, NM 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Arch, NM Weather Forecast
Arch, NM Weather Forecast Date: 1232 AM MDT Sat Aug 29 2026
The area/counties/county of: Roosevelt County, including the city of Portales.or toggle through each period.
Rest of Tonight... Mostly clear. Lows in the mid 60s. South winds around 15 mph.
Saturday... Hot. Mostly sunny. Highs in the upper 90s. South winds around 15 mph.
Saturday Night... Mostly clear. Lows in the upper 60s. South winds 15 to 20 mph.
Sunday... Mostly sunny. Hot with highs in the upper 90s. South winds around 15 mph.
Sunday Night... Mostly clear. Lows in the upper 60s. South winds around 15 mph.
Monday... Mostly clear. Hot. Highs in the mid 90s. Lows in the upper 60s.
Tuesday... Mostly clear. Hot. Highs in the mid 90s. Lows in the upper 60s.
Tuesday Night... Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 20%.
Wednesday... Mostly clear. Hot. Highs in the upper 90s. Lows in the upper 60s.
Thursday... Mostly clear. Hot. Highs in the upper 90s. Lows in the upper 60s.
POP = Probability of Precipitation
Arch Radar Loop
Use the map search tool if you want to place a location marker on the radar map...