Arlington, TX Weather
Arlington hourly forecast: next 24 hours
Today's high of 97°F (36°C) is about 8°F (4°C) above the typical September high of 89°F (32°C).
Current conditions in detail
Arlington weather tomorrow (Friday, September 18)
Tomorrow in Arlington looks sunny, with a high of 98° and an overnight low of 81°. Rain is unlikely (1% chance). Winds top out near 11 mph, and the UV index reaches 8 (very high).
Arlington 14-day forecast
About the weather in Arlington
Arlington runs one of the wider annual swings in our dataset: 22°C separates the average July from the average January. Afternoons reach 96°F (35°C) at the peak of summer and 56°F (13°C) at the depth of winter, with 105 days of measurable precipitation through the year.
Arlington weather: quick facts
- Hottest month: July - highs near 96°F (35°C)
- Coldest month: January - highs near 56°F (13°C)
- Decade extremes (2015-2024): 109°F (43°C) high · -3°F (-20°C) low
- Wettest month: May (14 rainy days) · Sunniest: July (12.3 h sun/day)
- Climate type: humid subtropical
- Annual swing: 22°C between the average warmest and coolest month · day to night: 10°C
- Months averaging 30°C or hotter: 4
- Average humidity: 65%
Temperatures through the year
January is the coolest month, with highs of 56°F (13°C) and lows near 38°F (3°C). Warmth peaks in July: highs of 96°F (35°C), lows of 78°F (26°C). The gridded 2015-2024 daily record for this location tops out at 109°F (43°C) and bottoms at -3°F (-20°C) - decade extremes, not all-time station records. Relative humidity averages 65% across the year, drier than about 79% of the cities we track.
Rain, sun and snow
July is the brightest month at 12.3 hours of sun a day, against an annual average of 9.3. Snowfall is rare but not unheard of. Four of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is March through April.
Season by season
Spring (March through May)
Spring in Arlington brings comfortable warmth, with daytime highs averaging 76°F (24°C) and nights around 58°F (14°C); rain falls on around 34 of the 90 days.
Summer (June through August)
Summer turns very hot here - highs near 94°F (34°C), nights near 76°F (25°C), and expect showers on roughly 26 days across the season. Daylight is generous - around 11.9 hours of sun a day.
Fall (September through November)
Fall settles into easy warmth here - highs near 78°F (26°C), nights near 61°F (16°C), and expect showers on roughly 22 days across the season.
Winter (December through February)
Winter is crisp but comfortable here - highs near 59°F (15°C), nights near 41°F (5°C), and expect showers on roughly 22 days across the season.
Average temperatures in Arlington by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 56° | 38° | 7 | 2.4 in | 7.5 h/day | 64% |
| February | 61° | 41° | 8 | 3.5 in | 7.3 h/day | 66% |
| March | 70° | 51° | 10 | 4.0 in | 8.4 h/day | 66% |
| April | 76° | 57° | 10 | 5.4 in | 9.3 h/day | 66% |
| May | 83° | 65° | 14 | 7.2 in | 9.6 h/day | 72% |
| June | 90° | 73° | 10 | 4.0 in | 11.6 h/day | 68% |
| July | 96° | 78° | 7 | 1.7 in | 12.3 h/day | 58% |
| August | 95° | 78° | 9 | 3.3 in | 11.7 h/day | 59% |
| September | 89° | 72° | 7 | 3.2 in | 10.5 h/day | 62% |
| October | 79° | 61° | 7 | 5.8 in | 9.3 h/day | 60% |
| November | 67° | 49° | 8 | 3.4 in | 7.6 h/day | 69% |
| December | 61° | 43° | 7 | 3.2 in | 7.0 h/day | 68% |