Melissa, TX Weather

Collin County7:35 AM CDT33.29°N, 96.57°WElevation 679 ft
Air Quality Alert until 6:30 PM Wed

Current conditions

Clear
48°
Clear
Feels like 47°
High 79°·Low 56°
WindN 3 mph
Humidity93%
Dew point46°
Pressure30.21 inHg
Visibility10 mi
Cloud cover1%
UV index0 Low
Sunrise7:36 AM
Sunset6:47 PM

Observed at McKinney - McKinney National Airport · 35 min ago

Forecast

10-day

  • Wednesday

    Sunny, with a high near 79. East southeast wind 0 to 5 mph.

  • Wednesday Night

    Clear. Low around 56, with temperatures rising to around 58 overnight. East wind 0 to 5 mph.

  • Thursday

    Sunny. High near 82, with temperatures falling to around 80 in the afternoon. East southeast wind 0 to 5 mph.

National Weather Service forecast updated 2 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 50°
  2. 8 AM Sunny 54°
  3. 9 AM Sunny 57°
  4. 10 AM Sunny 64°
  5. 11 AM Sunny 69°
  6. 12 PM Sunny 73°
  7. 1 PM Sunny 76°
  8. 2 PM Sunny 77°
  9. 3 PM Sunny 79°
  10. 4 PM Sunny 79°
  11. 5 PM Sunny 78°
  12. 6 PM Clear 77°
  13. 7 PM Mostly Clear 73°
  14. 8 PM Mostly Clear 68°
  15. 9 PM Mostly Clear 66°
  16. 10 PM Clear 64°
  17. 11 PM Clear 63°
  18. Thu12 AM Clear 61°
  19. 1 AM Clear 60°
  20. 2 AM Clear 60°
  21. 3 AM Clear 59°
  22. 4 AM Clear 58°
  23. 5 AM Clear 58°
  24. 6 AM Sunny 57°

10-day forecast

Details
  1. TonightOct 20 Clear Clear50°
  2. TodayOct 21 Sunny Sunny56°79°
  3. ThuOct 22 Sunny Sunny57°82°
  4. FriOct 23 Mostly Sunny Mostly Sunny58°82°
  5. SatOct 24 Mostly Sunny Mostly Sunny58°81°
  6. SunOct 25 Mostly Sunny Mostly Sunny56°78°
  7. MonOct 26 Mostly Sunny Mostly Sunny23%58°77°
  8. TueOct 27 Slight Chance Rain Showers Slight Chance Rain Showers23%71°
  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

62
Moderate
Fine particles (PM2.5)

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

Forecast

  • WedUnhealthy for Sensitive Groups Action day
  • ThuUnhealthy for Sensitive Groups
  • FriUnhealthy 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 7:36 AM
Sunset 6:47 PM
Daylight 11 h 10 min (−1 min 56 s tomorrow)
Waxing Gibbous · 77% lit
Moonrise 4:12 PM Moonset 2:58 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low76° / 52°
Record high91° (2023)
Record low40° (1999)
Wettest1.54 in (2009)
Yesterday79° / 49°
Month to date0.85 in (normal 2.74 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 2 hrs ago

Key Messages

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

Short Term

(Today and tonight) Issued at 1219 AM CDT Wed Oct 21 2026

Quiet weather will persist the rest of this week as North and Central Texas remain planted underneath an upper ridge and its subsident airmass. Persistently E-ESE winds and resultant upslope flow will temper the expected warming trend, with afternoon highs remaining in the upper 70s to mid 80s and overnight lows primarily in the 50s through the rest of the week. Over late week, a closed upper low will move onshore the southwestern CONUS, becoming enveloped within the more progressive northern stream flow. The lagging southern shortwave trough will remain draped across the southwest CONUS heading into the weekend, which will play more of a role in the long term discussion below.

Long Term

(Thursday through Tuesday) Issued at 1219 AM CDT Wed Oct 21 2026

Over the weekend into early next week, the lagging southwestern shortwave will meander towards the Four Corners, eventually becoming enveloped within a larger digging trough as it moves east towards the Great Lakes. In response, increased moisture advection will spread across west Texas, leading to returning rain chances to our west. This upper-level movement will shunt the Southern Plains ridge further east and south, setting the stage for a pattern shift. As the main trough pushes east, multiple disturbances are expected to round the base and move across the Plains, promoting both a frontal passage and the return of rain chances during first half of next week. Both the GFS and ECMWF deterministic models have FROPA between somewhere around late Monday or Tuesday, but exact timing remains uncertain this far out. Continue to keep updated with the forecast through the rest of this week as more refined details will become clearer closer in time.

Aviation

(12Z TAFS) Issued at 530 AM CDT Wed Oct 21 2026

As of 1030Z, winds at the TAF sites are coming in calm. Flow should settle generally out of the E-ESE closer to 15Z this morning, with speeds increasing to AOB 5-6 KT. Expect VFR to prevail with some mid-upper clouds passing overhead this afternoon and evening. Similar to nights previous, winds will once again become light/variable or calm primarily between the hours of 06-15Z Thursday.

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 4Conservative index and reflects what the press published. Terms of use.