Is lightning near Longmont right now?
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Free push alert when lightning approaches Longmont. Your exact location and alerts live in the app.
Thunderstorm season near Longmont
Longmont sits in Colorado, which averages about 45 thunderstorm days a year — roughly 1.8× the US average of 25. Lightning near Longmont is most frequent May–August.
- CO thunderstorm days/yr
- 45
- Peak season
- May–August
- vs US average
- 1.8×
State-level NOAA climatology; a city-specific thunderstorm-day normal isn’t published for every station.
Lightning safety in Longmont
When thunderstorms build over Longmont, the distance to the nearest strike matters more than a city-wide count. Use the 30-30 rule: if thunder follows lightning by 30 seconds or less, get indoors, and wait 30 minutes after the last thunder before heading back out. StrikeCast surfaces the distance and trend so you can act before the storm reaches you.
Frequently asked
How far away is the nearest lightning to Longmont?
StrikeCast shows the live distance in miles to the nearest strike near Longmont, updated continuously from NOAA GOES-GLM satellite data, plus whether it is approaching or moving away.
Is it safe to be outside in Longmont right now?
If you can hear thunder, you are close enough to be struck. Follow the 30-30 rule: shelter when thunder follows lightning by 30 seconds or less, and wait 30 minutes after the last thunder. StrikeCast's distance and trend help you decide before the storm arrives.
When is thunderstorm season in Longmont?
Longmont sees the most lightning May–August, averaging about undefined thunderstorm days a year.
Can I get lightning alerts for Longmont?
Yes. Get the free StrikeCast app, save Longmont, and you will get a push alert when lightning approaches — no need to keep the app open.