Flagstaff, AZ Hourly Forecast
Flagstaff temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 3 PM - around 70°
- Coolest hour: 2 AM - around 55°
- Highest rain chance: 2 AM (82%) - pack accordingly
- UV peak: 2 PM at index 8 - sun protection recommended
- Windiest: 4 PM at 14 mph
Flagstaff hourly weather - Tuesday, September 15
In Flagstaff, expect a high near 70°F (21°C) around 3 PM and a low of 55°F (13°C) near 11 PM; precipitation risk peaks at 36% around 2 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 2 PM | Patchy rain nearby | 70° | 63° | 36% | 12 mph SSW | 52% | 8 | |
| 3 PM | Patchy rain nearby | 70° | 63° | 10% | 13 mph SSW | 49% | 5 | |
| 4 PM | Cloudy | 69° | 61° | 7% | 14 mph SSW | 49% | 3 | |
| 5 PM | Patchy rain nearby | 66° | 59° | 10% | 12 mph SSW | 54% | 1 | |
| 6 PM | Patchy rain nearby | 64° | 58° | 15% | 11 mph SSW | 64% | 0 | |
| 7 PM | Patchy rain nearby | 60° | 57° | 17% | 7 mph SW | 74% | 0 | |
| 8 PM | Patchy rain nearby | 57° | 56° | 22% | 4 mph SSW | 83% | 0 | |
| 9 PM | Clear | 56° | 55° | 12% | 3 mph SSW | 86% | 0 | |
| 10 PM | Patchy rain nearby | 56° | 55° | 24% | 2 mph SSW | 89% | 0 | |
| 11 PM | Clear | 55° | 55° | 15% | 2 mph S | 90% | 0 |
Flagstaff hourly weather - Wednesday, September 16
In Flagstaff, expect a high near 63°F (17°C) around 2 PM and a low of 54°F (12°C) near 11 PM; precipitation risk peaks at 84% around 9 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 55° | 55° | 44% | 3 mph SSW | 91% | 0 | |
| 1 AM | Patchy rain nearby | 55° | 55° | 44% | 2 mph SSW | 93% | 0 | |
| 2 AM | Light rain shower | 55° | 54° | 82% | 2 mph SW | 93% | 0 | |
| 3 AM | Light rain shower | 55° | 55° | 58% | 2 mph SW | 94% | 0 | |
| 4 AM | Light rain shower | 56° | 55° | 64% | 4 mph S | 91% | 0 | |
| 5 AM | Light rain shower | 56° | 55° | 76% | 3 mph S | 91% | 0 | |
| 6 AM | Light rain shower | 55° | 54° | 76% | 4 mph SSW | 92% | 0 | |
| 7 AM | Light rain shower | 56° | 55° | 65% | 4 mph SW | 92% | 0 | |
| 8 AM | Light rain shower | 59° | 58° | 70% | 4 mph SW | 84% | 1 | |
| 9 AM | Light rain shower | 60° | 57° | 50% | 8 mph SSW | 78% | 2 | |
| 10 AM | Light rain shower | 62° | 59° | 60% | 8 mph SSW | 73% | 4 | |
| 11 AM | Light rain shower | 62° | 59° | 60% | 8 mph S | 73% | 5 | |
| 12 PM | Light rain shower | 62° | 59° | 65% | 8 mph S | 74% | 5 | |
| 1 PM | Patchy rain nearby | 62° | 60° | 31% | 6 mph S | 74% | 4 | |
| 2 PM | Light rain shower | 63° | 59° | 56% | 8 mph SSW | 70% | 4 | |
| 3 PM | Light rain shower | 61° | 59° | 61% | 6 mph SSW | 75% | 2 | |
| 4 PM | Light rain shower | 59° | 57° | 70% | 5 mph SSE | 82% | 1 | |
| 5 PM | Light rain shower | 57° | 55° | 69% | 6 mph SE | 87% | 0 | |
| 6 PM | Light rain shower | 56° | 53° | 69% | 7 mph SE | 92% | 0 | |
| 7 PM | Light rain shower | 55° | 52° | 77% | 7 mph SE | 94% | 0 | |
| 8 PM | Light rain shower | 54° | 53° | 79% | 4 mph SE | 97% | 0 | |
| 9 PM | Light rain shower | 54° | 52° | 84% | 5 mph SE | 97% | 0 | |
| 10 PM | Light rain shower | 54° | 53° | 67% | 4 mph ESE | 96% | 0 | |
| 11 PM | Light rain shower | 54° | 53° | 47% | 3 mph ENE | 96% | 0 |
Flagstaff hourly weather - Thursday, September 17
In Flagstaff, expect a high near 70°F (21°C) around 2 PM and a low of 51°F (11°C) near 4 AM; precipitation risk peaks at 51% around 12 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Mist | 54° | 52° | 51% | 4 mph ENE | 95% | 0 | |
| 1 AM | Mist | 53° | 51° | 37% | 5 mph ESE | 95% | 0 | |
| 2 AM | Fog | 52° | 50° | 43% | 4 mph ESE | 98% | 0 | |
| 3 AM | Fog | 51° | 50° | 46% | 4 mph ESE | 98% | 0 | |
| 4 AM | Fog | 51° | 50° | 43% | 3 mph SE | 98% | 0 | |
| 5 AM | Fog | 52° | 51° | 43% | 2 mph SE | 98% | 0 | |
| 6 AM | Mist | 51° | 51° | 35% | 1 mph S | 97% | 0 | |
| 7 AM | Overcast | 53° | 53° | 31% | 1 mph S | 94% | 0 | |
| 8 AM | Overcast | 56° | 55° | 26% | 3 mph SW | 84% | 1 | |
| 9 AM | Overcast | 59° | 57° | 20% | 5 mph SW | 77% | 2 | |
| 10 AM | Overcast | 62° | 60° | 18% | 6 mph SSW | 70% | 5 | |
| 11 AM | Patchy rain nearby | 64° | 61° | 16% | 7 mph SSW | 64% | 6 | |
| 12 PM | Thundery outbreaks in nearby | 67° | 63° | 17% | 8 mph SSW | 56% | 8 | |
| 1 PM | Light rain shower | 69° | 64° | 36% | 9 mph SSW | 50% | 9 | |
| 2 PM | Light rain shower | 70° | 64° | 36% | 10 mph SSW | 47% | 7 | |
| 3 PM | Patchy rain nearby | 69° | 63° | 8% | 10 mph SW | 48% | 5 | |
| 4 PM | Patchy rain nearby | 68° | 63° | 8% | 9 mph SW | 49% | 3 | |
| 5 PM | Patchy rain nearby | 66° | 61° | 17% | 8 mph SW | 55% | 1 | |
| 6 PM | Patchy rain nearby | 61° | 58° | 29% | 7 mph SW | 74% | 0 | |
| 7 PM | Clear | 56° | 55° | 13% | 4 mph SW | 89% | 0 | |
| 8 PM | Patchy rain nearby | 56° | 55° | 38% | 2 mph SW | 92% | 0 | |
| 9 PM | Clear | 55° | 54° | 15% | 2 mph SW | 93% | 0 | |
| 10 PM | Clear | 54° | 54° | 15% | 2 mph WSW | 94% | 0 | |
| 11 PM | Mist | 54° | 54° | 19% | 2 mph SSW | 94% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Flagstaff today?
Will it rain in Flagstaff tonight?
When is the UV index highest in Flagstaff today?
Flagstaff hour-by-hour: what to expect
Over the next 24 hours in Flagstaff, temperatures range from 55°F (13°C) around 2 AM up to 70°F (21°C) near 3 PM - about 5°F (3°C) below the typical September high of 75°F (24°C).
Precipitation is a real possibility: the chance of rain peaks at 82% around 2 AM. UV reaches 8 (2 PM) - sun protection recommended through midday.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the Flagstaff 14-day forecast or the monthly climate averages.