Weather Tomorrow in Longmont, CO
Friday, September 11, 2026
Clear
Precip chance
12%
Wind
2-7 mph
Humidity
32%
Feels like
87–57°F
Data source: National Weather Service (NOAA) · Updated just now
Tomorrow by Hour
55°Temperature trend89°
| Time | Temp | Condition | Rain % | Wind | ||
|---|---|---|---|---|---|---|
| 6 AM☽ | 64°F | Mostly Clear | 0% | 5 mph W | ||
| 7 AM☽ | 63°F | Mostly Clear | 0% | 5 mph W | ||
| 8 AM☽ | 60°F | Mostly Clear | 0% | 5 mph W | ||
| 9 AM☽ | 57°F | Mostly Clear | 0% | 5 mph W | ||
| 10 AM☽ | 56°F | Mostly Clear | 0% | 3 mph W | ||
| 11 AM☽ | 56°F | Mostly Clear | 0% | 3 mph W | ||
| 12 PM | 55°F | Mostly Sunny | 0% | 3 mph W | ||
| 1 PM | 56°F | Mostly Sunny | 0% | 2 mph WSW | ||
| 2 PM | 59°F | Mostly Sunny | 0% | 2 mph WSW | ||
| 3 PM | 65°F | Sunny | 0% | 2 mph SW | ||
| 4 PM | 71°F | Mostly Sunny | 0% | 2 mph S | ||
| 5 PM | 78°F | Mostly Sunny | 0% | 2 mph SE | ||
| 6 PM | 84°F | Mostly Sunny | 1% | 3 mph ESE | ||
| 7 PM | 87°F | Mostly Sunny | 1% | 5 mph SE | ||
| 8 PM | 89°F | Partly Sunny | 1% | 6 mph S | ||
| 9 PM | 89°F | Partly Sunny | 1% | 7 mph SSW | ||
| 10 PM | 89°F | Partly Sunny | 1% | 7 mph SW | ||
| 11 PM | 88°F | Partly Sunny | 1% | 7 mph WSW | ||
| 12 AM☽ | 85°F | Mostly Cloudy | 12% | 7 mph W | ||
| 1 AM☽ | 81°F | Mostly Cloudy | 12% | 6 mph WSW | ||
| 2 AM☽ | 77°F | Partly Cloudy | 12% | 6 mph WSW | ||
| 3 AM☽ | 72°F | Partly Cloudy | 12% | 5 mph WSW | ||
| 4 AM☽ | 70°F | Partly Cloudy | 12% | 5 mph W | ||
| 5 AM☽ | 68°F | Partly Cloudy | 12% | 5 mph WNW | ||
Precipitation Timeline
100%
50%
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<20%20-50%50-70%>70%
What to Wear Tomorrow
Hot — wear breathable, light clothing
Clothing
- • Light t-shirt or tank top
- • Shorts or light skirt
- • Hat for sun protection
Footwear
Sandals or breathable sneakers
Accessories
- • Sunglasses
- • Sunscreen
Conditions
High: 89°F
Low: 55°F
Wind: 2-7 mph
Rain: 12%
Big temperature swing (55°F to 89°F) — dress in removable layers.
Best Time to Be Outside Tomorrow
3 PM – 4 PM
Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)
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More for Longmont, CO
- Will it rain tomorrow in Longmont?
- What time will it rain tomorrow in Longmont?
- Weather tomorrow by hour in Longmont
- Heat index tomorrow by zip code near Longmont
- Dew point tomorrow by zip code near Longmont
- Wind chill tomorrow by zip code near Longmont
- Snow forecast tomorrow by zip code near Longmont
- What to wear tomorrow in Longmont
- Best time to be outside tomorrow in Longmont
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Frequently Asked Questions
What is the weather forecast for tomorrow in Longmont, CO?
Tomorrow in Longmont: High of 89°F, Low of 55°F. Clear with 12% chance of precipitation. Wind 2-7 mph.
Will it rain tomorrow in Longmont?
No significant precipitation expected tomorrow.
What should I wear tomorrow in Longmont?
With a high of 89°F and low of 55°F, check our "What to Wear" section above for specific clothing recommendations based on temperature, wind, and precipitation.
How accurate is this forecast?
Our forecasts come directly from the National Weather Service (NOAA), which provides some of the most accurate weather predictions available. Tomorrow forecasts are generally 80-90% accurate, with accuracy decreasing the further out you look. Data is refreshed every 30 minutes.