MCDONALD OBSERVATORY, TX 79734 Weather Forecast & Current Conditions

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MARFA, TX
Current Weather

12:01 PM CDT MAY 13, 2026
Clear
84°F
Feels Like: 81°F
Dewpoint: 32°F
Rel. Hum.: 15%
Visibility: 9 miles
Wind: Variable at 3 mph
Pressure: 30.26 inches
Last 72 hours

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MCDONALD OBSERVATORY, TX 79734
Weather Forecast

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Snow Depth pages
TODAY
Sunny. Highs in the upper 80s. South winds 5 to 10 mph, becoming southeast 10 to 15 mph this afternoon.
TONIGHT
Partly cloudy. Lows around 60. Southeast winds 10 to 20 mph with gusts up to 30 mph.
THURSDAY
Mostly cloudy. Highs in the upper 80s. Southwest winds 10 to 15 mph.
THURSDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s. West winds 5 to 10 mph with gusts up to 20 mph.
FRIDAY
Mostly sunny. Highs in the upper 80s. West winds 10 to 20 mph with gusts up to 30 mph.
FRIDAY NIGHT
Partly cloudy. Lows in the upper 50s.
SATURDAY
Sunny. Highs around 90.
SATURDAY NIGHT
Partly cloudy. Lows in the upper 50s.
SUNDAY
Sunny. Highs in the upper 80s.
SUNDAY NIGHT
Partly cloudy. Lows in the upper 50s.
MONDAY
Sunny. Highs in the upper 80s.
MONDAY NIGHT
Mostly clear. Lows in the mid 50s.
TUESDAY
Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.

Visible Weather Satellite
MCDONALD OBSERVATORY, TX 79734
Infrared Weather Satellite
MCDONALD OBSERVATORY, TX 79734
NEXRAD Weather Radar
MCDONALD OBSERVATORY, TX 79734

MARFA, TX 3 hourly weather forecast

weather forecast created  8:00 AM EDT  5/13/2026
Wednesday
13 MAY 2026
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 1, 12 hours 1 PM 88° 84° Clear 1%

0% Thunder
( 2% severe)
SSE   7 14% 32°
High 92° MCDONALD OBSERVATORY, TX 79734 weather forecast Day 1, 15 hours 4 PM 91° 87° Partly Cloudy SSE   10 10% 28°
Partly Cloudy



MCDONALD OBSERVATORY, TX 79734 weather forecast Day 1, 18 hours 7 PM 88° 84° Partly Cloudy 1%

0% Thunder
( 4% severe)
SSE   13 11% 27°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 1, 21 hours 10 PM 74° 74° Partly Cloudy ESE   15 22% 33°
Thursday
14 MAY 2026
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 0 hours 1 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 1% severe)
SSE   7 42% 42°
Low 55° MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 3 hours 4 AM 62° 62° Partly Cloudy W   5 44% 40°
High 91° MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 6 hours 7 AM 59° 60° Partly Cloudy 1%

0% Thunder
( 1% severe)
NNE   3 47% 39°

Mostly Cloudy



MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 9 hours 10 AM 75° 75° Partly Cloudy SSW   7 29% 41°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 12 hours 1 PM 87° 84° Mostly Cloudy 4%

0% Thunder
( 11% severe)
SSW   10 17% 37°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 15 hours 4 PM 90° 86° Mostly Cloudy SW   10 15% 36°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 18 hours 7 PM 88° 84° Mostly Cloudy 0%

0% Thunder
( 8% severe)
WSW   9 16% 36°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 2, 21 hours 10 PM 77° 77° Mostly Cloudy WSW   6 24% 37°
Friday
15 MAY 2026
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 0 hours 1 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 2% severe)
WNW   6 31% 38°
Low 58° MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 3 hours 4 AM 66° 66° Partly Cloudy WNW   6 34% 37°
High 91° MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 6 hours 7 AM 62° 62° Mostly Cloudy 0%

0% Thunder
( 1% severe)
WNW   7 36% 35°

Partly Cloudy



MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 9 hours 10 AM 79° 78° Partly Cloudy WNW   15 20% 35°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 15 hours 1 PM 87° 83° Partly Cloudy 1%

0% Thunder
( 11% severe)
W   15 15% 33°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 18 hours 4 PM 89° 85° Partly Cloudy W   15 14% 33°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 3, 21 hours 7 PM 88° 84° Partly Cloudy     W   12 14% 32°

MARFA, TX extended weather forecast

Saturday
16 MAY 2026
Sunday
17 MAY 2026
Monday
18 MAY 2026
Tuesday
19 MAY 2026
Wednesday
20 MAY 2026
Low 54° Low 50° Low 50° Low 49° Low 51°
High 89° High 89° High 88° High 87° High 89°
MCDONALD OBSERVATORY, TX 79734 weather forecast Day 4 MCDONALD OBSERVATORY, TX 79734 weather forecast Day 5 MCDONALD OBSERVATORY, TX 79734 weather forecast Day 6 MCDONALD OBSERVATORY, TX 79734 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
2% Rain
Clear
1% Rain
Clear
2% Rain
Clear
6% Rain
Clear
19% Rain
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