OTTUMWA — Temperatures have generally lagged below normal so far this spring, but that's going to change in a big way Tuesday.
Forecasters say southeast Iowa will see high temperatures in the lower 90s, nearly 20 degrees above normal. The average high for this time of year is 72.
The abnormally high temperatures will not last long. A cold front Tuesday night is expected to drop Wednesday's highs down to 79 with a chance of thunderstorms. The National Weather Service predicts the rest of the week will remain in the upper 70s.
Even with the forecast high in the low 90s, it may not quite be a record. The all-time high for May 14 was 92 degrees, set in 1988.
But even if this week doesn't quite see record high temperatures, it is likely to see another weather record set. The last tornado in Iowa hit on May 24, 2012, almost a year ago.
The record for the longest period without a tornado anywhere in Iowa is 355 days, set between May 5, 1955 and April 26, 1956. With no severe weather forecast for the state, Iowa is likely to break that record Wednesday.