St. Cloud, MN Weather Forecast
Tuesday, May 19, 2026 6:20 AM
Prepared by Bob Weisman, SCSU Meteorologist and Professor Emeritus
Dry and Cool Rest of Work Week
Some Helpful Rain With Little Monday Severe Weather in Minnesota
The severe storms were limited to northwestern Iowa and especially Kansas and Missouri, but a new round of showers and thunderstorms pushed from the eastern Dakotas and Nebraska into much of Minnesota overnight (set number of frames to 200 on the College of DuPage north central US radar loop). This produced significant rainfall in the parts of central Minnesota that didn't get much rain on Sunday and Sunday night. In St. Cloud, another 0.51 inch of rain fell through 1 AM (see NWS: last 72 hours of St. Cloud observations). Twin Cities International Airport had 0.53 inch, Duluth picked up 0.47 inch, and Alexandria got 0.33 inch.
Drying Out and Cooling Off, Especially Through Tomorrow Morning
However, those storms are departing northeastern Minnesota. That will set central Minnesota for drying that will last through the rest of the work week. It will also be much cooler over the next 24 hours. By sunrise, temperatures will fall back into the 40's (see NWS Aviation Weather Center METAR map) with wind chills in the 30's (see NWS Minnesota hourly weather round-up) as winds pick up to 15-25 MPH during the daylight hours. High temperatures will only recover to around 50 degrees this afternoon, more typical of early April than the second half of May.
Perhaps Some Sunny Periods During This Afternoon
The return of sunshine will be a bit slower. The main low is pushing into western Ontario (see College of DuPage North America mid-level water vapor loop) Breaks in the clouds have only moved into Saskatchewan (see College of DuPage North America shortwave infrared satellite loop), so we will have lingering clouds through the middle of today.
Central Minnesota Frost Threat, Northern Minnesota Freeze Threat Tonight
Tonight, skies will clear and the winds will die down. Given the drier air in western Ontario and Manitoba (see dew points in the 30's on the UCAR hourly dew point map), there will be a good chance for low temperatures in the 20's to near 30 in northern Minnesota and near freezing in parts of central Minnesota. Today will be the day to cover any sensitive plants if you have planted them so far this spring.
Milder (Mostly 60's) Rest of Week, But Still Cooler Than Average Late May Temperatures
We will see some warming the rest of the work week, but high temperatures will not be able to climb back into the 70's until Sunday at the earliest. Highs will return to near 60 tomorrow and the middle 60's on Thursday, but more clouds could knock highs back to around 60 on Friday.
Dry, So Fire Danger Back Up After Wednesday
There will be few chances for showers (see NWS WPC quantitative precipitation forecast) and dew points should generally be in the 30's. Winds won't be as strong as what we had at the end of last week, but the combination of highs in the 60's, a bit of a breeze, and the dry air will again produce elevated fire danger during the middle and the end of this week in areas that didn't get much rain the past two days.
The Flanders fire to the east of Breezy Point has continued, but the cooler and less windy weather helped with containment yesterday.
Only a Few Friday Showers Through the Weekend
The steering winds will turn to more west-to-east towards the weekend. This will move a series of storms along and to the north of the Canadian border. That will produce more clouds and a few scattered showers on Friday into Saturday. However, the low-level dry air will keep the rainfall totals low (see Days 4-5 of the NWS WPC quantitative precipitation forecast).
And Warming Up Sunday and Early Next Week
A major storm will move into the Central or Southern Rockies over the weekend. That will turn our steering winds to more southwest-to-northeast, giving us an opportunity to see much warmer temperatures from Sunday into early next week. Depending on the track of the storm as it moves into the Plains, there could be the potential for more showers and thunderstorms, but I can't pin down when that will be and what parts of Minnesota will have the best chance for these storms.
Detailed St. Cloud, MN, and Vicinity Forecast
Confidence Level (high): "The Bugs Are Waiting for Me to Mow the Lawn"
Tuesday 5/19/2026: Cloudy during the morning, maybe a few sunny periods during the afternoon, but still a few scattered sprinkles. Windy and much cooler. Elevated fire danger, especially in areas not getting much Sunday-Monday rain. High: between 50 and 55. Winds: NW 15-25 MPH with higher gusts. Chance of measurable rainfall: 20%.
Confidence Level (medium): "Extra Bugs Will Come from Every House on My Block to Make a Cloud Around My Head"
Tuesday Night: Cloudy during the evening, partial clearing late, slowly diminishing wind, and colder. Maybe some late night frost. Low: between 32 and 38. Winds: NW 5-15 MPH evening, light NW late. Morning wind chills in the 20's. Chance of measurable rainfall: 0%.
Wednesday 5/20/2026: More sunshine, fewer midday and afternoon clouds, lighter winds, and milder after a chilly start. Elevated to extreme fire danger. High: between 58 and 63. Winds: SE 5 MPH morning, 5-10 MPH afternoon. Chance of measurable rainfall: 0%.
Wednesday Night: Partly clear, a bit of a breeze. and not quite as cool. Low: between 40 and 45. Winds: SE 5-10 MPH. Chance of measurable rainfall: 10%.
Thursday 5/21/2026: Mixed clouds and sun and breezy with a slight chance for a shower or thunderstorm. A shade warmer. High: between 62 and 67. Winds: SE 8-15 MPH. Chance of measurable rainfall: 10%.
Confidence Level (low): "Enough Bugs Will Fly into My Mouth to Throw Off My Diet"
Thursday Night: Partly to mostly cloudy, a bit of a breeze, and a bit milder. A slight chance for a rain shower. Low: between 43 and 48. Winds: SE 5-10 MPH. Chance of measurable rainfall: 20%.
Friday 5/22/2026: Mostly cloudy and breezy with a chance for midday and afternoon showers and thunderstorms. A shade cooler. High: between 55 and 60. Winds: SE 8-15 MPH. Chance of measurable rainfall: 40%.
Friday Night: Cloudy with a good chance for rain or showers, breezy, and a bit milder. Low: between 48 and 53. Winds: SE 5-15 MPH. Chance of measurable rainfall: 50%.
Saturday 5/23/2026: Morning clouds with a chance for showers and thunderstorms, then some afternoon partial sunshine. A bit warmer. High: between 62 and 67. Winds: SE 5-10 MPH. Chance of measurable rainfall: 40%.
Extended: Turning warmer Sunday and especially early next week?? Uncertain chances for showers??
Forecast Confidence (10 – "The Rabbits Will Thump Even Though I Fed Them"; 0 – "The Rabbits Will Offer To Groom My Bald Spot"): 7 Tuesday, 5 Tuesday night, 7 Wednesday through Thursday, 3 Thursday night through Saturday.
Yesterday's High: 61°F; Overnight Low (through 6 AM Tuesday): 45°F;
St. Cloud Airport last 24-Hour Precipitation (through 6 AM Tuesday): 0.51 inch; SCSU 24-Hour Precipitation (through 6 AM Tuesday): 0.22 inch
| Temperature Category | High | Low |
|---|---|---|
| 70°F | 47°F | |
| 91°F (1921) | 62°F (1941) | |
| 43°F (1971,2019) | 28°F (1981,2000) |
Next Update: Wednesday, May 20, 2026 6 AM
Links
- Full UCAR surface chart menu
- NWS Minnesota Hourly Weather Round-Up
- NWS: Last 72 hours of St. Cloud Observations
- MesoWest: Last 24 hours of St. Cloud Observations
- Full NWS Aviation Center Zoom-In Map
- Full College of DuPage surface map menu
- NWS WPC Latest North American zoom-in surface map
- NWS WPC surface map menu
- NWS WPC Short-Range forecast map
- NWS WPC 0-7 day forecast map loop
- US Air and Sports Net MN Wind Chill map
- NWS NOHRSC Snow Analyses
- US Watch/Warning Map from National Weather Service
- NWS Twin Cities Regional watch warning map
- Today's NWS Storm Prediction Center severe weather outlook
- Active Tropical Cyclones in eastern Pacific and Atlantic from NWS Tropical Prediction Center
- Potential Flooding Areas from the NWS Weather Prediction Center
- Air Quality Index from the Minnesota Pollution Control Agency
- NWS Weather Safety Page
- CDC Natural Disaster and Severe Weather Safety
- NWS Hot Weather and Sun/Ultraviolet Safety
- NWS Winter Storm Safety
- NWS Cold Weather Safety
- Yesterday's Storm Prediction Center severe weather reports are here
- NWS Hurricane Safety Page
- NWS Tropical Prediction Center overview of storm surge (coastal flooding)
- Minnesota MPCA hourly Air Quality Index
- Minnesota DNR Wildfire danger
- US Average Weather Related Deaths from NWS
- College of DuPage radar
- Airline Flight Delays and Cancellations from FlightAware.com
- Yesterday's Saint Cloud Climate Summary
- St. Cloud Weather Summaries by month
- Minnesota State Climatology Office weekly growing season rainfall maps
- Minnesota State Climatology Office create your own precipitation table
- NWS Create Your Own Rainfall Map
- Daily High/Low/Precip/Snowfall by Month (1997-current)
- National Weather Service Saint Cloud Daily Weather Site
- Saint Cloud Daily Normals, Records, and Extremes
- Bob Weisman's Ultimate Saint Cloud Climate Page
- St. Cloud Growing Season Rainfall and Departure from normal (at the bottom of this forecast each day)
- National Drought Mitigation Center's US Drought Monitor (updated on Thursdays)
- DNR Waters Streamflow Report (updated on Mondays)
- NWS Create Your Own Rainfall Map
- More Drought Links (from the State Climatology Office, Minnesota DNR)
- DNR Forestry/Fire Conditions page
Comments
Let me know what you think about this forecast and discussion by emailing SCSU meteorology professor Bob Weisman. Please note that I make the forecast, not the weather!
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