Glenn Zimmerman is the Chief Meteorologist for FOX 2 News. He has been forecasting weather in St. Louis for over 30 years. Watch for his forecasts on Fox 2 News at 5pm, 6pm, 9pm, 10pm, and 11pm.

Glenn has college degrees in Broadcast Journalism from Kansas State University, and Meteorology from Saint Louis University. He is a father of 5, with two grandkids and 3 grand dogs.

When he doesn’t have his head in the clouds, he is into photography, music, and has competed in several triathlons.


Recent Articles
  • Glenn Zimmerman’s Long-Range Spring 2019 forecast

    ST. LOUIS, Mo. – Long-range forecasting for the Spring months in St. Louis is nearly impossible. It’s just such a changeable time of year for us. But there are things we know and a few signs of what’s to come. First, it has been a wild winter. Some warm along with some major cold. Snow and ice and rain too. It’s a pattern that involves a southern branch to the jet stream. If that pattern continues into March, April, and […]

  • Dangerous cold likely Tuesday night through early Thursday

    ST. LOUIS, Mo. – A Wind Chill Watch has been posted for the entire area through Thursday morning. The first of two cold fronts moved through Monday and temperatures have been dropping ever since. It’s a cold night ahead but things get even colder on Tuesday. Temperatures will drop even more that evening. Wednesday and Thursday will see the worst of the winter blast. Morning lows are expected to be at -2 degrees Wednesday, with expected wind chills between -15 […]

  • How much snow are we going to get this weekend? A lot more

    ST. LOUIS, Mo. — We have a major storm.   There is a Winter Storm Warning for St. Louis and surrounding counties through Sunday.   Now that we are in the middle of this, a couple of things to note: Moderate snow will continue into the early morning hours. The fact that this storm started about five hours earlier than what we thought…we have updated the potential storm totals We are looking at 6-8” by Saturday morning…then another couple of inches through the day Saturday. Totals […]

  • Glenn Zimmerman’s 2018-19 long-range winter forecast

    ST. LOUIS – Climate scientists get a little edgy when you ask them about specific events like a white Christmas or even if December will be colder than February. And those are the things you want to know, right? I’ve been forecasting weather here in St. Louis for 30 years, so I’ve seen some things, some patterns. So, I guess it’s time for me to take a stab at this inexact science thing we call weather prediction. Ladies and gentlemen: […]

  • Forecast: Showers this afternoon, light snow tonight

    ST. LOUIS, MO —  Meteorologist Glen Zimmerman says that a cold front is moving through the area Friday will bring the chill back. Look for a few showers this afternoon, with a few spots of light snow tonight. Highs will be in the mid-40’s around lunchtime. The National Weather Service posted this update to Facebook, “Light rain will change to snow from north to south this afternoon and evening. The latest forecast information indicates that up to 1 inch of […]

  • Halloween forecast: Chilly temps in St. Louis for trick-or-treaters

    ST. LOUIS, MO — Sunshine to start then increasing clouds for Halloween afternoon and evening. Highs Tuesday will be near 50° and trick-or-treat temperatures will be in the mid 40°s. It looks great outside but there is a cold air mass over the area.  The chilly temperatures mean young children heading out for the holiday may want to add an extra layer to their costume. Full forecast:  FOX2Now.com/Weather

  • Rain in the forecast Wednesday and Thursday; may prolong floods

    ST. LOUIS, MO (KTVI) – There will be plenty of sunshine Tuesday. The temperatures will be warmer, but windy. Highs are forecast to be in the upper 60’s. Rain is in the forecast Wednesday and Thursday. That is not welcome news for those dealing with rising flood water. There will be a moderate rain event Wednesday and Thursday should bring 1-2 inches of rain to the area. There will be no thunderstorms, all rain. The small streams and creeks will […]

  • St. Louis forecast has spring-like weather turning to winter this weekend

    ST. LOUIS, MO (KTVI) – Get ready for fast changes in the weather! Springtime Thursday with highs in the 70’s. Look for some rain tonight, then colder air filters in Friday. Snow is still on track for Saturday. There is a freeze warning for St. Louis County from 6pm Friday until 1pm Sunday. The sunshine should give way to increasing clouds this afternoon. A fast round of showers and thunder showers should move in this evening. Any severe weather will […]

  • Several more rounds of heavy rain expected through Tuesday

    ST. LOUIS, MO (KTVI) – The heavy rain threat will continue into Monday night with temperatures staying in the 70’s. Keep an eye on creeks and streams that could rise fast. There is an old front that is nearly stationary to the south of St. Louis. It is an old topically charged low pressure system that is lumbering slowly north along the front and will pass near or just south of St. Louis Monday. All of the available data continues […]

  • Accumulating snow for St. Louis overnight Tuesday into Wednesday

    ST. LOUIS, MO (KTVI) – Snow is on the way. A Winter Weather Advisory is in effect for the entire FOX 2 News viewing area through 6am Wednesday. Cloudy and cold Tuesday, with a narrow band of snow developing between noon and 2pm to the west of St. Louis. That snow is pushing into drier air, but may put down a quick 1/2″ of snow before the evening commute. The heaviest snow begins to move in from the west after 4pm and will spread eastward across […]

  • Fall Back: Daylight Saving Time ends this weekend

    ST. LOUIS, MO (KTVI)- This is the weekend Daylight Saving Time ends,  “Spring forward.. .Fall back”. So before you go to bed Saturday night, turn your clocks back one hour. While you are at it, it’s a good time to change the batteries in your smoke and carbon monoxide detectors.

  • Winter mix expected Wednesday in St. Louis

    MARYLAND HEIGHTS, MO (KTVI)- After a bit of snow melting yesterday, it’s back to winter time and snow making today. A round of light snow will move in today with the heaviest staying south of St. Louis. The metro area could get a light snow, with 4-6″ in southeastern Missouri and Southern Illinois. More cold air rushes in for a couple of days.  

Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.