National Weather Service United States Department of Commerce

Rain spreads northeast tonight becoming heaviest overnight into Tuesday morning and eventually exits the area through Wednesday. Heaviest rainfall rates from 0.1" to 0.2" per hour are possible through much of Tuesday morning primarily west of the Mississippi River Valley. Resultant highest amounts in these areas could receive more than 2" of rainfall. Low-lying, poor draining, flood susceptible areas may experience standing water where the heaviest rain falls. The gradient in higher rainfall amounts can still shift depending on exact storm track so it remains important to continue monitoring forecasts.
Besides the ongoing cool temperatures, rain chances increase tonight. Heaviest rainfall expected overnight through Tuesday morning with more than 2" possible west of the Mississippi River by Wednesday. Otherwise daytime highs in the high 50s to low 60s decrease to near 50° for Tuesday then slowly increase to the 60s by the weekend. Coldest temperatures Tuesday through Thursday night will be a few degrees above and below 40.
Due to required, scheduled major upgrade to our computer systems, all NOAA Weather Radio stations our office is responsible for will be off the air between Monday, May 19th and Wednesday, May 21st. During this planned NOAA Weather Radio outage, it is important to have multiple ways to receive warning information. Alternate sources may include: local TV/radio, weather apps on a mobile device, and NWS La Crosse's website.