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Los Alamos County NM Weather - Overcast - 55°F
Overcast
55°F
Updated 2:00 am
Feels Like 62°F
Humidity 84%
Wind N 0 mph
Barometer  30.31 in
Dew Point 50°F
Los Alamos County NM Weather - Overcast - 13°C
Overcast
13°C
Updated 2:00 am
Feels Like 16°C
Humidity 84%
Wind N 0 km/h
Barometer  102.6 kPa
Dew Point 10°C
Los Alamos County, NM Weather and Current Conditionslos alamos county nm weather forecast

Los Alamos County, NM Weather Forecast

Los Alamos County New Mexico WeatherLos Alamos County, New Mexico Weather Weather Forecast
14 day API weather forecast for Los Alamos County, New Mexico. Note: The 7-day weather forecast for Los Alamos County, NM is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Los Alamos County, NM Weather Forecast Dated: 200 AM Sat Sep 19 2026
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 19, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-19 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Los Alamos County Weather - 2026-09-19 - Afternoon - Sunny
80°F 26°C
Sunny
Early-Evening
Los Alamos County Weather - 2026-09-19 - Evening - Light Showers
63°F 18°C
Light Showers
Warm and summery near 80°F 26°C, drier conditions through late afternoon before showers move in, with steady humidity and steady pressure. Winds turning from the NE to the S at 6 mph 9 km/h.

Sunday, September 20, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-20 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Los Alamos County Weather - 2026-09-20 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Los Alamos County Weather - 2026-09-20 - Evening - Sunny
72°F 23°C
Sunny
Comfortable with temperatures reaching 79°F 26°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds building from ENE at 3 mph 4 km/h to NW at 12 mph 19 km/h.

Monday, September 21, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-21 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Los Alamos County Weather - 2026-09-21 - Afternoon - Overcast
76°F 25°C
Overcast
Early-Evening
Los Alamos County Weather - 2026-09-21 - Evening - Overcast
71°F 22°C
Overcast
Enjoyable around 76°F 25°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds moving from the NE to the NW at 7 mph 11 km/h.

Tuesday, September 22, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-22 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Los Alamos County Weather - 2026-09-22 - Afternoon - Light Showers
71°F 22°C
Light Showers
Early-Evening
Los Alamos County Weather - 2026-09-22 - Evening - Light Showers
63°F 17°C
Light Showers
Mild temperatures up to 71°F 22°C, drier morning followed by showers lasting through evening, with increasing humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-23 - Morning - Scattered Showers
59°F 15°C
Scattered Showers
Mid-Afternoon
Los Alamos County Weather - 2026-09-23 - Afternoon - Light Showers
57°F 14°C
Light Showers
Early-Evening
Los Alamos County Weather - 2026-09-23 - Evening - Overcast
58°F 14°C
Overcast
Brisk around 57°F 14°C, scattered downpours possible, with steady humidity and steady pressure.

Thursday, September 24, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-24 - Morning - Light Showers
57°F 14°C
Light Showers
Mid-Afternoon
Los Alamos County Weather - 2026-09-24 - Afternoon - Light Showers
65°F 18°C
Light Showers
Early-Evening
Los Alamos County Weather - 2026-09-24 - Evening - Scattered Showers
63°F 17°C
Scattered Showers
Mildly cool near 65°F 18°C, locally heavy downpours at times, with lower humidity and steady pressure.

Friday, September 25, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-25 - Morning - Overcast
60°F 15°C
Overcast
Mid-Afternoon
Los Alamos County Weather - 2026-09-25 - Afternoon - Partly Cloudy
74°F 23°C
Partly Cloudy
Early-Evening
Los Alamos County Weather - 2026-09-25 - Evening - Sunny
70°F 21°C
Sunny
Comfortable with temperatures reaching 74°F 23°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds picking up from ESE at 1 mph 2 km/h to WNW at 10 mph 16 km/h.

Saturday, September 26, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-26 - Morning - Scattered Showers
64°F 18°C
Scattered Showers
Mid-Afternoon
Los Alamos County Weather - 2026-09-26 - Afternoon - Overcast
76°F 24°C
Overcast
Early-Evening
Los Alamos County Weather - 2026-09-26 - Evening - Overcast
72°F 22°C
Overcast
Enjoyable around 76°F 24°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds shifting from the NE to the SW at 10 mph 15 km/h.

Sunday, September 27, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-27 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Los Alamos County Weather - 2026-09-27 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Los Alamos County Weather - 2026-09-27 - Evening - Partly Cloudy
73°F 23°C
Partly Cloudy
Mild temperatures up to 78°F 26°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds turning from the NE to the NNW at 6 mph 9 km/h.

Monday, September 28, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-28 - Morning - Overcast
65°F 18°C
Overcast
Mid-Afternoon
Los Alamos County Weather - 2026-09-28 - Afternoon - Scattered Showers
77°F 25°C
Scattered Showers
Early-Evening
Los Alamos County Weather - 2026-09-28 - Evening - Light Showers
61°F 16°C
Light Showers
Mild with a high of 77°F 25°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds switching from the S to the SSW at 7 mph 12 km/h.

Tuesday, September 29, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-29 - Morning - Scattered Showers
59°F 15°C
Scattered Showers
Mid-Afternoon
Los Alamos County Weather - 2026-09-29 - Afternoon - Light Showers
69°F 21°C
Light Showers
Early-Evening
Los Alamos County Weather - 2026-09-29 - Evening - Light Showers
62°F 17°C
Light Showers
Pleasant near 69°F 21°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds moving from the SSE to the SW at 8 mph 13 km/h.

Wednesday, September 30, 2026

Mid-Morning
Los Alamos County Weather - 2026-09-30 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Los Alamos County Weather - 2026-09-30 - Afternoon - Cloudy
71°F 22°C
Cloudy
Early-Evening
Los Alamos County Weather - 2026-09-30 - Evening - Overcast
67°F 20°C
Overcast
Comfortable with temperatures reaching 71°F 22°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the SW to the W at 5 mph 8 km/h.

Thursday, October 1, 2026

Mid-Morning
Los Alamos County Weather - 2026-10-01 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Los Alamos County Weather - 2026-10-01 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Los Alamos County Weather - 2026-10-01 - Evening - Sunny
65°F 18°C
Sunny
Enjoyable around 70°F 21°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds shifting from the WSW to the ESE at 7 mph 10 km/h.

Friday, October 2, 2026

Mid-Morning
Los Alamos County Weather - 2026-10-02 - Morning - Scattered Showers
61°F 16°C
Scattered Showers
Mid-Afternoon
Los Alamos County Weather - 2026-10-02 - Afternoon - Light Showers
75°F 24°C
Light Showers
Early-Evening
Los Alamos County Weather - 2026-10-02 - Evening - Light Showers
64°F 18°C
Light Showers
Mild temperatures up to 75°F 24°C, scattered downpours possible, with increasing humidity and steady pressure. Winds turning from the SSE to the ESE at 13 mph 22 km/h. Gusts up to 25 mph 41 km/h.

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Weather by the Numbers

Sat, 19th
Los Alamos County NM Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 80°F 26°C
Lo: 58°F 14°C
Sunrise 06:50 AM
Sunset 07:06 PM
Wind S 5 mph8 km/h
Dew Point 46°F8°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 36%
Sun, 20th
Los Alamos County NM Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 79°F 26°C
Lo: 56°F 13°C
Sunrise 06:51 AM
Sunset 07:04 PM
Wind SSW 8 mph13 km/h
Dew Point 37°F3°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 0% *
Humidity 26%
Mon, 21st
Los Alamos County NM Weather - Monday, Sep 21, 2026 - Overcast
Hi: 76°F 25°C
Lo: 58°F 15°C
Sunrise 06:52 AM
Sunset 07:03 PM
Wind ESE 4 mph6 km/h
Dew Point 28°F-2°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 9% *
Humidity 20%
Tue, 22nd
Los Alamos County NM Weather - Tuesday, Sep 22, 2026 - Thundery Outbreaks In Nearby
Hi: 76°F 24°C
Lo: 56°F 13°C
Sunrise 06:53 AM
Sunset 07:01 PM
Wind S 13 mph21 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 10% *
Humidity 40%
Wed, 23rd
Los Alamos County NM Weather - Wednesday, Sep 23, 2026 - Light Rain Shower
Hi: 59°F 15°C
Lo: 56°F 14°C
Sunrise 06:54 AM
Sunset 07:00 PM
Wind S 5 mph8 km/h
Dew Point 53°F12°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 58% *
Humidity 86%
Thu, 24th
Los Alamos County NM Weather - Thursday, Sep 24, 2026 - Light Rain Shower
Hi: 65°F 18°C
Lo: 56°F 13°C
Sunrise 06:54 AM
Sunset 06:58 PM
Wind ESE 2 mph3 km/h
Dew Point 54°F12°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 50% *
Humidity 76%
Fri, 25th
Los Alamos County NM Weather - Friday, Sep 25, 2026 - Patchy Rain Nearby
Hi: 74°F 23°C
Lo: 56°F 14°C
Sunrise 06:55 AM
Sunset 06:57 PM
Wind SSW 6 mph10 km/h
Dew Point 53°F12°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 11% *
Humidity 59%
Sat, 26th
Los Alamos County NM Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 76°F 24°C
Lo: 59°F 15°C
Sunrise 06:56 AM
Sunset 06:55 PM
Wind ESE 3 mph5 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 9% *
Humidity 38%
Sun, 27th
Los Alamos County NM Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 78°F 26°C
Lo: 59°F 15°C
Sunrise 06:57 AM
Sunset 06:54 PM
Wind ESE 5 mph8 km/h
Dew Point 44°F7°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 35%
Mon, 28th
Los Alamos County NM Weather - Monday, Sep 28, 2026 - Overcast
Hi: 77°F 25°C
Lo: 59°F 15°C
Sunrise 06:58 AM
Sunset 06:53 PM
Wind S 2 mph3 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 10% *
Humidity 35%
Tue, 29th
Los Alamos County NM Weather - Tuesday, Sep 29, 2026 - Patchy Rain Nearby
Hi: 69°F 21°C
Lo: 57°F 14°C
Sunrise 06:58 AM
Sunset 06:51 PM
Wind SSE 9 mph15 km/h
Dew Point 50°F10°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 17% *
Humidity 55%
Wed, 30th
Los Alamos County NM Weather - Wednesday, Sep 30, 2026 - Sunny
Hi: 71°F 22°C
Lo: 55°F 13°C
Sunrise 06:59 AM
Sunset 06:50 PM
Wind SW 17 mph27 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 29.8 in1009 mb
POP 2% *
Humidity 49%
Thu, 1st
Los Alamos County NM Weather - Thursday, Oct 1, 2026 - Sunny
Hi: 70°F 21°C
Lo: 54°F 12°C
Sunrise 07:00 AM
Sunset 06:48 PM
Wind SW 13 mph21 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 29.83 in1010 mb
POP 1% *
Humidity 36%
Fri, 2nd
Los Alamos County NM Weather - Friday, Oct 2, 2026 - Sunny
Hi: 75°F 24°C
Lo: 54°F 12°C
Sunrise 07:01 AM
Sunset 06:47 PM
Wind S 14 mph23 km/h
Dew Point 43°F6°C
uv Index 6
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 36%
* POP = Probability of Precipitation. Data for 12:00 PM.