Melissa, TX 75454 Weather

Collin County11:39 PM CDT33.28°N, 96.57°W
Air Quality Alert until 6:30 PM Wed

Current conditions

Clear
55°
Clear
Feels like 55°
High 80° Wednesday·Low 52° tonight
WindCalm
Humidity77%
Dew point48°
Pressure30.21 inHg
Visibility10 mi
Cloud cover2%
UV index0 Low
Sunrise7:35 AM
Sunset6:48 PM

Observed at McKinney - McKinney National Airport · 29 min ago

Forecast

10-day

  • Tonight

    Clear. Low around 52, with temperatures rising to around 54 overnight. East wind 0 to 5 mph.

  • Wednesday

    Sunny. High near 80, with temperatures falling to around 78 in the afternoon. East wind 0 to 5 mph.

  • Wednesday Night

    Clear. Low around 56, with temperatures rising to around 58 overnight. East wind around 0 mph.

National Weather Service forecast updated 5 hrs ago.

Hourly

Hourly forecast
  1. Now Clear 59°
  2. Wed12 AM Clear 57°
  3. 1 AM Clear 56°
  4. 2 AM Clear 55°
  5. 3 AM Clear 55°
  6. 4 AM Clear 54°
  7. 5 AM Clear 54°
  8. 6 AM Sunny 53°
  9. 7 AM Sunny 53°
  10. 8 AM Sunny 53°
  11. 9 AM Sunny 57°
  12. 10 AM Sunny 65°
  13. 11 AM Sunny 69°
  14. 12 PM Sunny 73°
  15. 1 PM Sunny 76°
  16. 2 PM Sunny 78°
  17. 3 PM Sunny 79°
  18. 4 PM Sunny 80°
  19. 5 PM Sunny 78°
  20. 6 PM Mostly Clear 78°
  21. 7 PM Mostly Clear 74°
  22. 8 PM Mostly Clear 69°
  23. 9 PM Clear 66°
  24. 10 PM Clear 64°

10-day forecast

Details
  1. TonightOct 20 Clear Clear52°
  2. WedOct 21 Sunny Sunny56°80°
  3. ThuOct 22 Sunny Sunny59°82°
  4. FriOct 23 Mostly Sunny Mostly Sunny58°82°
  5. SatOct 24 Mostly Sunny Mostly Sunny58°82°
  6. SunOct 25 Mostly Sunny Mostly Sunny57°78°
  7. MonOct 26 Mostly Sunny Mostly Sunny58°78°
  8. TueOct 27 Partly Sunny Partly Sunny75°
  9. WedOct 28 Sunny Sunny48°61°
  10. ThuOct 29 Cloudy Cloudy47°62°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Melissa

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Air quality

52
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • TueModerate
  • WedUnhealthy for Sensitive Groups Action day
  • ThuUnhealthy for Sensitive Groups

Dallas-Fort Worth, TX reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:35 AM
Sunset 6:48 PM
Daylight 11 h 12 min (−1 min 55 s tomorrow)
Waxing Gibbous · 74% lit
Moonrise 3:45 PM Moonset 1:58 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low76° / 53°
Record high93° (2023)
Record low36° (2006)
Wettest1.68 in (2019)
Yesterday76° / 46°
Month to date0.85 in (normal 2.59 in)

Mckinney Municipal Ap, records since 1998. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in FWD, issued 5 hrs ago

Key Messages

- Quiet weather will continue through this week, with steadily warming temperatures through the end of the week.

Short Term

(Tonight through Friday) Issued at 1200 PM CDT Tue Oct 20 2026

Calm and quiet weather will continue this week. Upper-level ridging continues to be the dominant pattern across North and Central Texas, extending this streak of pleasant and dry fall weather. Temperatures will gradually warm up day by day, with overnight lows staying in the upper 50s. Wednesday onward, expect highs in the low 80s, with light east winds and some cirrus development keeping temperatures moderate and seasonable. There are no chances for any rain through the end of the week.

Long Term

(Saturday through Tuesday) Issued at 1200 PM CDT Tue Oct 20 2026

This quiet ridging pattern will persist through the weekend, with seasonable weather on tap through the extended period. By Saturday, an upper-level trough along the west coast will begin to send shortwaves along the flow pattern, shunting northeast between the developing trough to the west and the strong ridge overhead. The majority of any shortwave driven ascent should stay off to the northwest which will keep PoP's very low to nil (around 10% for NW North Texas). Cirrus and upper-level cloud development as a result of the intensifying trough and propagating shortwaves will dampen our warming trend slightly, with max temperatures breaking into the low 80s each day this weekend. In addition to seasonal temps, the skin-crackingly dry air should also see some improvement, with southerly winds bringing some moisture return back to the area.

By next Monday, long-range guidance depicts the upper level trough shifting off to the northeast, flattening our current ridge pattern. To the west, LREF cluster analysis has begun to signal a developing upper-level low in the Pacific Northwest that will start to intensify and swing south. With the predominant ridge flattened and weakened, returning rain chances are on the table for North and Central Texas by mid-week as the pattern shifts. Some of the GEFS ensemble members, as well as the GFS, are beginning to resolve a cold frontal passage by the end of this extended period (Tuesday into Wednesday next week), but timing, intensity, and coverage of any rain & storm chances remain uncertain.

Aviation

(00Z TAFS) Issued at 545 PM CDT Tue Oct 20 2026

Isolated rain showers and virga associated with a weak shortwave over the Southern Plains should remain northeast of all TAF locations. A ridge aloft centered over Mexico and South Texas will otherwise provide quiet aviation weather, with VFR and light east winds expected across the board. Will continue with one- line TAFs for this forecast cycle.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.