National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Severe Thunderstorms and Heavy Rain in the Upper Midwest and Mid-Mississippi Valley; Extremely Critical Fire Weather in the Northwest on Saturday

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rainfall are expected over parts of the Upper Midwest to mid-Mississippi Valley today. Critical to extremely critical fire weather conditions from the Northwest and the northern Great Basin on Saturday and Sunday. Read More >

Current conditions at

St. Johns, St. Johns Industrial Airpark (KSJN)

Lat: 34.52°NLon: 109.38°WElev: 5732ft.

Fair

86°F

30°C

Humidity 30%
Wind Speed Calm
Barometer 30.30 in (1014.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 31 Jul 9:54 am MST
Extended Forecast for

3 Miles SW Luna NM

  • Today

    Today: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 89. North wind 5 to 10 mph becoming west in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 58. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 58 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 40%.

    High: 86 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. Northwest wind 5 to 10 mph becoming south in the evening. Chance of precipitation is 30%.

    Low: 56 °F

    Scattered
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Southwest wind around 5 mph.

    High: 84 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 89. North wind 5 to 10 mph becoming west in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 58. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Scattered showers and thunderstorms after noon. Mostly sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
Scattered showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. Northwest wind 5 to 10 mph becoming south in the evening. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Southwest wind around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Luna NM
 33.79°N 109.01°W (Elev. 7799 ft)
Last Update:
9:03 am MDT Jul 31, 2026
Forecast Valid:
11am MDT Jul 31, 2026-6pm MDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation