Waco, TX Weather
Waco hourly forecast: next 24 hours
Today's high of 101°F (38°C) is about 11°F (6°C) above the typical September high of 90°F (32°C).
Current conditions in detail
Waco weather tomorrow (Wednesday, September 16)
Tomorrow in Waco looks sunny, with a high of 99° and an overnight low of 78°. Rain is unlikely (7% chance). Winds top out near 17 mph, and the UV index reaches 8 (very high).
Waco 14-day forecast
About the weather in Waco
Waco records 105 wet days and 9.2 hours of daily sunshine in an average year. Temperatures follow a humid subtropical pattern, running 59°F (15°C) in January up to 97°F (36°C) in July.
Waco weather: quick facts
- Hottest month: July - highs near 97°F (36°C)
- Coldest month: January - highs near 59°F (15°C)
- Decade extremes (2015-2024): 111°F (44°C) high · 7°F (-14°C) low
- Wettest month: May (14 rainy days) · Sunniest: July (12.4 h sun/day)
- Climate type: humid subtropical
- Annual swing: 21°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
Relative humidity averages 65% across the year, drier than about 79% of the cities we track. At its warmest, in July, Waco runs to 97°F (36°C) in the afternoon and back to 78°F (26°C) by dawn. January bottoms out at 59°F (15°C) in daylight, 41°F (5°C) after dark. Snowfall is rare but not unheard of.
Rain, sun and snow
Sunshine averages 9.2 hours a day over the year, peaking in July at 12.4 hours. Average highs hold at or above 30°C for 4 months of the year, June through September being the unbroken run. May is the wettest month at 6.6 inches (168 mm) over 14 days; July is the driest. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 111°F (44°C) and the lowest daily minimum 7°F (-14°C).
Season by season
Spring (March through May)
Through spring, Waco settles into easy warmth: 78°F (25°C) by day, 59°F (15°C) after dark, and rain falls on around 34 of the 90 days.
Summer (June through August)
Summer is punishingly hot here - highs near 95°F (35°C), nights near 77°F (25°C), and expect showers on roughly 24 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 80°F (27°C), nights near 62°F (17°C), and expect showers on roughly 24 days across the season.
Winter (December through February)
Winter in Waco runs cool rather than cold, with daytime highs averaging 61°F (16°C) and nights around 43°F (6°C); expect showers on roughly 24 days across the season.
Average temperatures in Waco by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 59° | 41° | 7 | 2.6 in | 7.4 h/day | 65% |
| February | 63° | 44° | 9 | 3.3 in | 7.1 h/day | 68% |
| March | 72° | 53° | 10 | 3.7 in | 8.1 h/day | 67% |
| April | 77° | 58° | 10 | 5.6 in | 9.0 h/day | 67% |
| May | 84° | 67° | 14 | 6.6 in | 9.6 h/day | 73% |
| June | 92° | 74° | 10 | 3.3 in | 11.6 h/day | 67% |
| July | 97° | 78° | 6 | 1.8 in | 12.4 h/day | 57% |
| August | 97° | 78° | 7 | 2.6 in | 11.7 h/day | 57% |
| September | 90° | 73° | 7 | 2.4 in | 10.5 h/day | 61% |
| October | 81° | 62° | 8 | 5.0 in | 9.2 h/day | 60% |
| November | 69° | 51° | 9 | 3.3 in | 7.3 h/day | 68% |
| December | 63° | 46° | 8 | 4.0 in | 6.8 h/day | 69% |