The summerlike weather pattern is slated to continue through at least Friday, with highs 15 or more degrees above normal in the 70s (and some low 80s) common, lows mostly in the 50s (near the normal highs for mid to late March) and chances of thunderstorms each day as moisture and outflow boundaries hang around from the previous days’ storms (such as those Tuesday that produced several reports of large hail, mainly east of Roanoke). By the weekend, a front will push in with a more widespread chance of rain (and perhaps some more organized strong storms), but it looks like only slight cooling behind before another rebound to warm next week.
With 11 days left in the month, I am already calling this as the warmest March on record for Blacksburg. Blacksburg’s records go back to 1952, and the previous warmest March was 48.5 degrees in 1976. This March through 20 days is already averaging 48.8 degrees. Blacksburg has had 2 consecutive days when both its high and low set records for warmth (77/50 on Tuesday to set new March 20 standards). The rest of the month must average only 48 degrees for Blacksburg to set the hot March record — looking at the overall weather pattern, that seems very likely to occur.
Roanoke’s records go farther back, to 1912, so they encompass very warm Marches in 1921 (57.2) and 1945 (56.0). At 54.9 degrees, this March would already finish third if it were over, and it has more time to close in and possibly pass the two ahead of it. It needs to average 61.8 degrees over the last 11 days to take over the top spot. The last 7 days have each averaged at least 61 degrees, and it seems many similar days are yet to come. So consider Roanoke to have a very good chance of setting a record for March warmth.