LA CROSSE, Wis - High Today: 85F / Low Tonight: 66F - Last updated Wednesday, July 18, 2018 at 5:43 PM...
High pressure brought another nice mid-summer day with sunny to partly cloudy skies, seasonable temps and fairly low humidity.
We are watching a developing low pressure system to our west. This system will continue to spread clouds across the area tonight. There's a slight chance for a few showers well after midnight (after about 4 a.m. or so), especially in parts of SE Minnesota & NE Iowa. Lows tonight will range from the lower to middle 60s.
Low pressure tracks east and over the region on Thursday, bringing mostly cloudy skies with periods of showers and t-storms. The clouds and rain chances will knock high temps into the mid-upper 70s. Showers and t-storms become more widespread later in the afternoon and into Thursday evening. The severe threat with this system has lowered somewhat, mainly due to clouds and rain keeping instability in check. However, there is a small window for strong storms tomorrow evening. The Storm Prediction Center has indicated a "Marginal Risk" for severe storms will exist over far southwest Wisconsin back into northeast Iowa. This is a southward shift from earlier forecasts.
Locally heavy rainfall will also be possible as this system slowly tracks across the region. Some areas could see 1.00" to 2.00" through late Thursday night, with isolated higher totals possible. However, the latest data suggests the heavier totals will remain more local than widespread. Stay tuned!
The system will be slow to depart, so still expect a decent chance for scattered showers and t-storms Friday. However, I'm not expecting any strong to severe storms on Friday... and the rain should be lighter. High temps Friday will again be in the mid-upper 70s.
Looking Ahead... With the system so slow to move east of our area, we had to include just a small chance for a few showers on Saturday... but most areas will likely remain dry. Sunday still looks dry with mostly sunny skies. Highs will top out near 80° Saturday, then low 80s Sunday.
Much of the rest of the 8 dat period look fairly dry and pleasant. We'll see a slight chance of rain Monday. After that, look for mainly dry conditions with highs in the upper 70s to lower 80s. That's not too bad for the last half of July!.
Have a great night! -Cory Malles
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