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Fort Collins, Colorado weather · now

81°

Clear

Feels
80°
High / Low
94° / 63°
Wind
21 mph S
Humidity
34%
No precipitation expected in the next 1.7 hours.

Precipitation · next 12 hrs

Peak 22% · 6 PM

9 AM
·
·
12 PM
·
·
3 PM
·
·
6 PM
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8 PM
ModerateAir quality PollenTreeNoneGrassModerateWeedModerate
Sun 6:07 AM 8:03 PM 13h 57m
Moon Waning Crescent 3% lit

Current weather and 7-day forecast for Fort Collins, Colorado, sourced directly from the National Weather Service. Expect patchy smoke today. Today's high is 94° with a low near 63°. 2 active weather alerts in effect.

What to wear today

Loose, light, and water nearby

94°F — wear breathable fabrics and stay hydrated.

Next 24 hours

55° 80° 100° ↑ 93° ↓ 64° 9 AM 12 PM 3 PM 6 PM 9 PM 12 AM 3 AM 6 AM

  1. 9 AM

    78°

    0%

  2. 11 AM

    90°

    0%

  3. 1 PM

    92°

    15%

  4. 3 PM

    92°

    21%

  5. 5 PM

    90°

    21%

  6. 7 PM

    85°

    22%

  7. 9 PM

    78°

    2%

  8. 11 PM

    73°

    2%

  9. 1 AM

    70°

    0%

  10. 3 AM

    67°

    0%

  11. 5 AM

    65°

    0%

  12. 7 AM

    65°

    0%

Live radar

View full radar →
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7 days

  1. Today 8/11 Patchy Smoke 22% 94° · 63°
    1. 9 AM 78° Patchy Smoke
    2. 10 AM 85° Patchy Smoke
    3. 11 AM 90° Patchy Smoke
    4. 12 PM 93° Patchy Smoke 15%
    5. 1 PM 92° Patchy Smoke 15%
    6. 2 PM 90° Patchy Smoke 15%
    7. 3 PM 92° Patchy Smoke 21%
    8. 4 PM 90° Patchy Smoke 21%
    9. 5 PM 90° Patchy Smoke 21%
    10. 6 PM 89° Patchy Smoke 22%
    11. 7 PM 85° Patchy Smoke 22%
    12. 8 PM 82° Patchy Smoke 22%
    13. 9 PM 78° Patchy Smoke 2%
    14. 10 PM 75° Patchy Smoke 2%
    15. 11 PM 73° Patchy Smoke 2%
  2. Wed 8/12 Patchy Smoke 51% 91° · 61°
    1. 12 AM 71° Patchy Smoke
    2. 1 AM 70° Patchy Smoke
    3. 2 AM 69° Patchy Smoke
    4. 3 AM 67° Patchy Smoke
    5. 4 AM 66° Patchy Smoke
    6. 5 AM 65° Patchy Smoke
    7. 6 AM 64° Patchy Smoke
    8. 7 AM 65° Patchy Smoke
    9. 8 AM 69° Patchy Smoke
    10. 9 AM 74° Patchy Smoke
    11. 10 AM 80° Patchy Smoke
    12. 11 AM 85° Patchy Smoke
    13. 12 PM 86° Patchy Smoke 31%
    14. 1 PM 87° Patchy Smoke 31%
    15. 2 PM 89° Patchy Smoke 31%
    16. 3 PM 87° Chance Showers And Thunderstorms 47%
    17. 4 PM 86° Chance Showers And Thunderstorms 47%
    18. 5 PM 85° Chance Showers And Thunderstorms 47%
    19. 6 PM 82° Chance Showers And Thunderstorms 47%
    20. 7 PM 79° Chance Showers And Thunderstorms 51%
    21. 8 PM 76° Chance Showers And Thunderstorms 51%
    22. 9 PM 73° Chance Rain Showers 51%
    23. 10 PM 71° Chance Rain Showers 51%
    24. 11 PM 69° Chance Rain Showers 51%
  3. Thu 8/13 Showers And Thunderstorms 80% 79° · 57°
    1. 12 AM 68° Slight Chance Rain Showers 24%
    2. 1 AM 66° Slight Chance Rain Showers 24%
    3. 2 AM 66° Slight Chance Rain Showers 24%
    4. 3 AM 65° Slight Chance Rain Showers 24%
    5. 4 AM 63° Slight Chance Rain Showers 24%
    6. 5 AM 62° Slight Chance Rain Showers 24%
    7. 6 AM 61° Chance Rain Showers 35%
    8. 7 AM 62° Chance Rain Showers 35%
    9. 8 AM 62° Chance Rain Showers 35%
    10. 9 AM 64° Chance Rain Showers 35%
    11. 10 AM 67° Chance Rain Showers 35%
    12. 11 AM 70° Chance Rain Showers 35%
    13. 12 PM 73° Showers And Thunderstorms 80%
    14. 1 PM 75° Showers And Thunderstorms 80%
    15. 2 PM 76° Showers And Thunderstorms 80%
    16. 3 PM 77° Showers And Thunderstorms 80%
    17. 4 PM 77° Showers And Thunderstorms 80%
    18. 5 PM 76° Showers And Thunderstorms 80%
    19. 6 PM 74° Showers And Thunderstorms 79%
    20. 7 PM 72° Showers And Thunderstorms 79%
    21. 8 PM 69° Showers And Thunderstorms 79%
    22. 9 PM 66° Showers And Thunderstorms 79%
    23. 10 PM 65° Showers And Thunderstorms 79%
    24. 11 PM 64° Showers And Thunderstorms 79%
  4. Fri 8/14 Partly Sunny then Showers And Thunderstorms 80% 80° · 56°
    1. 12 AM 63° Chance Rain Showers 32%
    2. 1 AM 62° Chance Rain Showers 32%
    3. 2 AM 61° Chance Rain Showers 32%
    4. 3 AM 60° Chance Rain Showers 32%
    5. 4 AM 59° Chance Rain Showers 32%
    6. 5 AM 58° Chance Rain Showers 32%
    7. 6 AM 58° Mostly Cloudy 11%
    8. 7 AM 59° Partly Sunny 11%
    9. 8 AM 60° Partly Sunny 11%
    10. 9 AM 62° Mostly Sunny 11%
    11. 10 AM 66° Partly Sunny 11%
    12. 11 AM 70° Mostly Cloudy 11%
    13. 12 PM 74° Showers And Thunderstorms 80%
    14. 1 PM 76° Showers And Thunderstorms 80%
    15. 2 PM 78° Showers And Thunderstorms 80%
    16. 3 PM 79° Showers And Thunderstorms 80%
    17. 4 PM 78° Showers And Thunderstorms 80%
    18. 5 PM 77° Showers And Thunderstorms 80%
    19. 6 PM 76° Showers And Thunderstorms Likely 59%
    20. 7 PM 74° Showers And Thunderstorms Likely 59%
    21. 8 PM 71° Showers And Thunderstorms Likely 59%
    22. 9 PM 69° Showers And Thunderstorms Likely 59%
    23. 10 PM 67° Showers And Thunderstorms Likely 59%
    24. 11 PM 65° Showers And Thunderstorms Likely 59%
  5. Sat 8/15 Partly Sunny then Chance Showers And Thunderstorms 54% 83° · 55°
    1. 12 AM 64° Slight Chance Rain Showers 15%
    2. 1 AM 63° Slight Chance Rain Showers 15%
    3. 2 AM 61° Slight Chance Rain Showers 15%
    4. 3 AM 60° Slight Chance Rain Showers 15%
    5. 4 AM 58° Slight Chance Rain Showers 15%
    6. 5 AM 57° Slight Chance Rain Showers 15%
    7. 6 AM 57° Mostly Sunny 3%
    8. 7 AM 59° Mostly Sunny 3%
    9. 8 AM 62° Mostly Sunny 3%
    10. 9 AM 66° Mostly Sunny 3%
    11. 10 AM 70° Mostly Sunny 3%
    12. 11 AM 74° Mostly Sunny 3%
    13. 12 PM 77° Chance Showers And Thunderstorms 54%
    14. 1 PM 80° Chance Showers And Thunderstorms 54%
    15. 2 PM 81° Chance Showers And Thunderstorms 54%
    16. 3 PM 82° Chance Showers And Thunderstorms 54%
    17. 4 PM 82° Chance Showers And Thunderstorms 54%
    18. 5 PM 81° Chance Showers And Thunderstorms 54%
    19. 6 PM 79° Chance Showers And Thunderstorms 27%
    20. 7 PM 76° Chance Showers And Thunderstorms 27%
    21. 8 PM 73° Chance Showers And Thunderstorms 27%
    22. 9 PM 70° Chance Showers And Thunderstorms 27%
    23. 10 PM 67° Chance Showers And Thunderstorms 27%
    24. 11 PM 65° Chance Showers And Thunderstorms 27%
  6. Sun 8/16 Partly Sunny then Chance Showers And Thunderstorms 51% 84° · 56°
    1. 12 AM 63° Partly Cloudy 3%
    2. 1 AM 61° Partly Cloudy 3%
    3. 2 AM 60° Partly Cloudy 3%
    4. 3 AM 59° Partly Cloudy 3%
    5. 4 AM 58° Partly Cloudy 3%
    6. 5 AM 57° Partly Cloudy 3%
    7. 6 AM 57° Mostly Sunny 3%
    8. 7 AM 59° Mostly Sunny 3%
    9. 8 AM 61° Mostly Sunny 3%
    10. 9 AM 65° Mostly Sunny 3%
    11. 10 AM 69° Mostly Sunny 3%
    12. 11 AM 73° Mostly Sunny 3%
    13. 12 PM 77° Chance Showers And Thunderstorms 51%
    14. 1 PM 80° Chance Showers And Thunderstorms 51%
    15. 2 PM 82° Chance Showers And Thunderstorms 51%
    16. 3 PM 83° Chance Showers And Thunderstorms 51%
    17. 4 PM 84° Chance Showers And Thunderstorms 51%
    18. 5 PM 84° Chance Showers And Thunderstorms 51%
    19. 6 PM 82° Chance Showers And Thunderstorms 31%
    20. 7 PM 79° Chance Showers And Thunderstorms 31%
    21. 8 PM 75° Chance Showers And Thunderstorms 31%
    22. 9 PM 71° Chance Showers And Thunderstorms 31%
    23. 10 PM 68° Chance Showers And Thunderstorms 31%
    24. 11 PM 66° Chance Showers And Thunderstorms 31%
  7. Mon 8/17 Mostly Sunny then Chance Showers And Thunderstorms 28% 85° · 57°
    1. 12 AM 64° Partly Cloudy 5%
    2. 1 AM 62° Partly Cloudy 5%
    3. 2 AM 61° Partly Cloudy 5%
    4. 3 AM 60° Partly Cloudy 5%
    5. 4 AM 58° Partly Cloudy 5%
    6. 5 AM 57° Partly Cloudy 5%
    7. 6 AM 57° Mostly Sunny 1%
    8. 7 AM 59° Mostly Sunny 1%
    9. 8 AM 62° Mostly Sunny 1%
    10. 9 AM 66° Mostly Sunny 1%
    11. 10 AM 70° Mostly Sunny 1%
    12. 11 AM 74° Mostly Sunny 1%
    13. 12 PM 78° Chance Showers And Thunderstorms 28%
    14. 1 PM 81° Chance Showers And Thunderstorms 28%
    15. 2 PM 83° Chance Showers And Thunderstorms 28%
    16. 3 PM 84° Chance Showers And Thunderstorms 28%
    17. 4 PM 85° Chance Showers And Thunderstorms 28%
    18. 5 PM 85° Chance Showers And Thunderstorms 28%
    19. 6 PM 84° Partly Cloudy 14%
    20. 7 PM 81° Partly Cloudy 14%
    21. 8 PM 77° Partly Cloudy 14%
Extended outlook days 8–16
  1. Tue 8/18 Drizzle 20% 92° · 70°
  2. Wed 8/19 Drizzle 22% 95° · 71°
  3. Thu 8/20 Drizzle 25% 95° · 72°
  4. Fri 8/21 Drizzle 32% 79° · 67°
  5. Sat 8/22 Rain Showers 55% 84° · 63°
  6. Sun 8/23 Drizzle 58% 81° · 64°
  7. Mon 8/24 Drizzle 55% 87° · 64°
  8. Tue 8/25 Cloudy 54% 93° · 67°
  9. Wed 8/26 Cloudy 55% 91° · 72°

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best day this week

Mild temps, low rain chance, clearer skies.

Wednesday, 8/12

Patchy Smoke, 91° / 61°, 51% rain

  1. Tomorrow91°61°
  2. Thu79°57°
  3. Fri80°56°
  4. Sat83°55°
  5. Sun84°56°
  6. Mon85°57°

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

How well did we do?

Average miss by lead time.

Each morning we save the day's predicted high/low. As later days arrive, we grade what we said against what the station actually recorded.

Same day
±2°
2 days graded
1 day out
±2°
2 days graded
3 days out
±3°
2 days graded
7 days out
±11°
2 days graded
Day-by-day, 1 day out7 days
  1. Yesterday±3°
    High97°97°0°
    Low63°66°-3°
  2. Sun, Aug 9±1°
    High99°99°0°
    Low64°63°+1°
  3. Sat, Aug 8pending
    High101°——
    Low67°——
  4. Fri, Aug 7pending
    High98°——
    Low63°——
  5. Thu, Aug 6pending
    High99°——
    Low61°——
  6. Wed, Aug 5pending
    High88°——
    Low58°——
  7. Tue, Aug 4pending
    High78°——
    Low57°——

Climate normals

What weather to expect in Fort Collins

Fort Collins in August typically averages 87° highs and 60° lows, with about 12 days of rain. The hottest stretch is July (average high 89°); the coldest is January (average low 16°). May is the wettest month on average.

MonthAvg highAvg lowRainy days
Jan38°16°9
Feb48°22°8
Mar63°33°8
Apr63°36°9
May70°45°16
Jun81°55°12
Jul89°60°15
Aug87°60°12
Sep81°52°7
Oct68°42°5
Nov52°30°7
Dec48°26°4

Normals derived from the past two years of observations via Open-Meteo's historical archive.

More for Fort Collins

Other cities in Colorado

Detailed forecast (NWS)

Today
Patchy smoke before noon, then patchy smoke and a slight chance of showers and thunderstorms. Partly sunny. High near 94, with temperatures falling to around 90 in the afternoon. West northwest wind 3 to 9 mph. Chance of precipitation is 20%.
Wednesday
Patchy smoke before noon, then patchy smoke and a chance of showers and thunderstorms. Partly sunny. High near 91, with temperatures falling to around 85 in the afternoon. North wind 3 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Thursday
A chance of rain showers before noon, then showers and thunderstorms. Mostly cloudy, with a high near 79. East wind 2 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms after noon. Partly sunny, with a high near 80.

Forecast details

NWS gridpoint
BOU 63,100
Radar station
KCYS
Time zone
America/Denver
Coordinates
40.585, -105.084