Allen, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Allen, TX in one place.
Mostly sunny, with a high near 108. Heat index values as high as 107. Southwest wind around 10 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Allen, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 6:35 PM CDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Allen, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 6:35 PM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Allen
Monday looks like the warmest upcoming period in Allen at 108 degrees F.
Thursday Night is the coolest period ahead with temperatures near 80 degrees F.
The strongest winds are forecast for Monday Night at about 10 to 15 mph SSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 6:35 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KFWS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms after 4am. Mostly clear. Low around 85, with temperatures rising to around 87 overnight. Heat index values as high as 105. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
A slight chance of showers and thunderstorms before 7am. Sunny. High near 106, with temperatures falling to around 104 in the afternoon. Southwest wind around 10 mph, with gusts as high as 20 mph.
Mostly clear. Low around 83, with temperatures rising to around 86 overnight. South wind around 10 mph.
Mostly sunny, with a high near 103. West southwest wind 5 to 10 mph.
Partly cloudy, with a low around 81. North northeast wind around 5 mph.
A slight chance of rain showers between 7am and 1pm. Sunny, with a high near 102. East northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 80.
Mostly sunny, with a high near 101.
Mostly clear, with a low around 80.
Sunny, with a high near 101.
Mostly clear, with a low around 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Mostly Sunny
|
108°F |
10 mph
SW
|
|
Monday Night
Aug 24
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
85°F |
10 to 15 mph
SSW
|
|
Tuesday
Aug 25
|
Slight Chance Showers And Thunderstorms then Sunny
|
106°F |
10 mph
SW
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
83°F |
10 mph
S
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
103°F |
5 to 10 mph
WSW
|
|
Wednesday Night
Aug 26
|
Partly Cloudy
|
81°F |
5 mph
NNE
|
|
Thursday
Aug 27
|
Slight Chance Rain Showers
|
102°F |
5 to 10 mph
ENE
|
|
Thursday Night
Aug 27
|
Partly Cloudy
|
80°F |
5 to 10 mph
E
|
|
Friday
Aug 28
|
Mostly Sunny
|
101°F |
5 to 10 mph
SSE
|
|
Friday Night
Aug 28
|
Mostly Clear
|
80°F |
5 to 10 mph
SSE
|
|
Saturday
Aug 29
|
Sunny
|
101°F |
5 to 10 mph
S
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
80°F |
10 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Allen.
