Weather in Collin County, Texas for March 2026
Freeze Warning - See hour by hour.
Until now, March 2026 in Collin County has been nearly identical to the historical average, with a temperature of 22.3 °F (showing only a slight deviation of 0.1 °F).
The forecast for the upcoming days in Collin County predicts a temperature of 25.1 °F, which is slightly above the historical average.
In general, the average temperature in Collin County at the beginning of March is 22.7 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.7 °F by the end of March.
The climate of Collin County in March is notably wet, with an average of 13 rainy days, and a total of 94.1 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
More
Collin County Weather March
Temperatures trend during March in Collin County
March weather in Collin County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Mar. 1 |  Sunny | 21° /9° | 0 mm | 5 | |
| Mar. 2 |  Overcast | 23° /11° | 0 mm | 4 | |
| Mar. 3 | Overcast | 26° /15° | 0 mm | 5 | |
| Mar. 4 |  Thundery outbreaks possible | 23° /16° | 3.8 mm | 4 | |
| Mar. 5 |  Partly cloudy | 23° /12° | 37 mm | 5 | |
| Mar. 6 | Overcast | 21° /9° | 0.6 mm | 5 | |
| Mar. 7 |  Light rain shower | 22° /14° | 3.5 mm | 5 | |
| Mar. 8 |  Patchy light rain with thunder | 20° /9° | 3 mm | 5 | |
| Mar. 9 | Overcast | 18° /8° | 1.8 mm | 3 | |
| Mar. 10 | Overcast | 21° /9° | 2.3 mm | 4 | |
| Mar. 11 | Patchy rain possible | 23° /10° | 17.7 mm | 5 | |
| Mar. 12 | Overcast | 21° /8° | 0.3 mm | 5 | |
| Mar. 13 | Thundery outbreaks possible | 25° /10° | 0 mm | 5 | |
| Mar. 14 | Overcast | 23° /15° | 2.2 mm | 5 | |
| Mar. 15 | Overcast | 23° /11° | 0.2 mm | 4 | |
| Mar. 16 | Light rain shower | 17° /8° | 2.9 mm | 5 | |
| Mar. 17 | Sunny | 20° /1° | 0 mm | 1.3 | |
| Mar. 18 | Sunny | 26° /7° | 0 mm | 1.6 | |
| Mar. 19 | Sunny | 32° /10° | 0 mm | 1.6 | |
| Mar. 20 | Sunny | 31° /17° | 0 mm | 1.8 | |
| Mar. 21 | Sunny | 31° /18° | 0 mm | 0 | |
| Mar. 22 | Sunny | 30° /18° | 0 mm | 6 | |
| Mar. 23 | Partly cloudy | 27° /16° | 0 mm | 6 | |
| Mar. 24 | Partly cloudy | 26° /15° | 0 mm | 6 | |
| Mar. 25 |  Moderate rain | 19° /12° | 14.4 mm | 4 | |
| Mar. 26 | Patchy rain possible | 20° /10° | 0.3 mm | 3 | |
| Mar. 27 | Sunny | 18° /10° | 0 mm | 4 | |
| Mar. 28 | Sunny | 19° /7° | 0 mm | 4 | |
| Mar. 29 | Sunny | 25° /11° | 0 mm | 5 | |
| Mar. 30 | Sunny | 27° /14° | 0 mm | 6 | |
| Mar. 31 | Patchy rain possible | 24° /15° | 1.5 mm | 6 | |
| Next | |||||
Collin County in March - FAQ
What are the expected maximum and minimum temperatures in Collin County during March?
How much rainfall should be expected in Collin County during March?
What are the typical wind conditions in Collin County during March?
March rainfall patterns in Collin County
UV exposure in Collin County during March
Quick links
Where is Collin County?Get accurate weather forecasts for Collin County, located at latitude 33.151 and longitude -96.824. Stay updated with localized weather information tailored for Collin County.