4 Day Forecasts by Location
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Boulder, CO - 80302
Probability of exceeding weather thresholds
Weather condition | Tue Sep 19 | Wed Sep 20 | Thu Sep 21 | Fri Sep 22 | Sat Sep 23 | Sun Sep 24 | Mon Sep 25 | Tue Sep 26 | Wed Sep 27 | Thu Sep 28 | Fri Sep 29 | Sat Sep 30 |
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| 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 21 | 00 | 03 | 06 | 09 | 12 | 15 | 18 | 00 | 06 | 12 | 18 | 00 | 06 | 12 | 18 | 00 | 06 | 12 | 18 |
Precipitation |
Precip 0.01 | | | | | | | | | | | | | | | | | | 0 | | | | | | 0 | | | | | | 0 | | | | | | 0 | | 0 | | 0 | | 1 | | 4 | | 1 | | 0 | | 0 | | 0 | | 0 | | | | 1 | | | | 4 | | | | 1 | | | | 0 | | | | 0 | | | | 0 | | | | 0 | | | | 1 | | 0 | | 0 | | 0 | | 0 | | 0 | | 0 | | |
Precip 0.1 | | | | | | | | | | | | | | | | | | 0 | | | | | | 0 | | | | | | 0 | | | | | | 0 | | 0 | | 0 | | 2 | | 5 | | 1 | | 1 | | 0 | | 0 | | 0 | | | | 2 | | | | 5 | | | | 1 | | | | 0 | | | | 0 | | | | 1 | | | | 0 | | | | 1 | | 0 | | 1 | | 0 | | 0 | | 0 | | 1 | | |
Temperature |
Temperature (F) | 77 | 76 | 75 | 74 | 71 | 68 | 65 | 62 | 60 | 59 | 58 | 57 | 56 | 56 | 54 | 54 | 53 | 52 | 52 | 58 | 64 | 69 | 72 | 74 | 76 | 77 | 76 | 77 | 75 | 73 | 68 | 65 | 62 | 61 | 60 | 58 | 56 | 53 | 63 | 73 | 76 | 74 | 62 | 58 | 54 | 50 | 61 | 71 | 74 | 71 | 59 | 53 | 51 | 48 | 56 | 65 | 71 | 69 | 58 | 53 | 49 | 47 | 56 | 68 | 74 | 71 | 59 | 54 | 50 | 47 | 59 | 71 | 75 | 72 | 62 | 56 | 53 | 51 | 61 | 73 | 77 | 74 | 63 | 58 | 55 | 52 | 63 | 75 | 75 | 57 | 51 | 71 | 72 | 57 | 51 | 71 | 72 | 57 | 51 | 71 |
Temperature SD | 34 | 34 | 34 | 34 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 35 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 36 | 35 | 35 | 36 | 35 | 35 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 35 | 36 | 35 | 36 | 36 | 35 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 34 | 35 | 35 | 38 | 36 | 35 | 35 | 37 | 37 | 37 | 36 | 37 |
Apparent Temperature | 77 | 76 | 75 | 73 | 71 | 68 | 65 | 62 | 60 | 60 | 59 | 57 | 56 | 55 | 54 | 53 | 52 | 52 | 52 | 58 | 63 | 68 | 72 | 74 | 76 | 77 | 76 | 76 | 75 | 72 | 68 | 64 | 62 | 61 | 59 | 59 | 56 | 54 | 63 | 72 | 76 | 74 | 62 | 58 | 54 | 51 | 61 | 71 | 74 | 71 | 59 | 54 | 51 | 45 | 56 | 66 | 71 | 69 | 57 | 53 | 47 | 44 | 56 | 68 | 74 | 72 | 59 | 54 | 48 | 44 | 59 | 71 | 76 | 73 | 61 | 57 | 53 | 50 | 62 | 73 | 78 | 74 | 63 | 58 | 55 | 52 | 63 | 75 | 75 | 57 | 51 | 71 | 71 | 58 | 51 | 71 | 71 | 57 | 51 | 72 |
Max Temp (F) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 79 | | | | | | | | | | | | 78 | | | | | | | | 77 | | | | | | | | 73 | | | | | | | | 76 | | | | | | | | 79 | | | | | | | | 82 | | | | | | | 81 | | | | 77 | | | | 77 | | | |
Max Temp SD | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 33 | | | | | | | | | | | | 34 | | | | | | | | 33 | | | | | | | | 33 | | | | | | | | 33 | | | | | | | | 34 | | | | | | | | 34 | | | | | | | 34 | | | | 35 | | | | 37 | | | |
Humidity |
Dewpoint (F) | 42 | 42 | 43 | 44 | 46 | 47 | 48 | 47 | 46 | 45 | 45 | 44 | 43 | 42 | 42 | 41 | 41 | 41 | 41 | 43 | 45 | 44 | 43 | 43 | 42 | 41 | 42 | 42 | 42 | 44 | 44 | 44 | 44 | 43 | 42 | 42 | 39 | 38 | 41 | 42 | 38 | 39 | 38 | 37 | 36 | 35 | 38 | 36 | 31 | 30 | 32 | 29 | 29 | 29 | 32 | 31 | 28 | 29 | 30 | 29 | 28 | 29 | 34 | 33 | 30 | 30 | 32 | 29 | 28 | 29 | 34 | 35 | 33 | 33 | 33 | 31 | 31 | 31 | 36 | 37 | 35 | 36 | 35 | 34 | 33 | 33 | 38 | 39 | 39 | 35 | 35 | 40 | 40 | 36 | 35 | 39 | 37 | 32 | 32 | 36 |
Dewpoint SD | 34 | 34 | 34 | 34 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 35 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 36 | 35 | 35 | 36 | 35 | 35 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 35 | 36 | 35 | 36 | 36 | 35 | 36 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 35 | 34 | 35 | 34 | 34 | 35 | 36 | 36 | 35 | 33 | 34 | 34 | 37 | 36 | 37 |
RH | 29 | 30 | 32 | 35 | 41 | 47 | 53 | 58 | 59 | 59 | 60 | 62 | 61 | 61 | 62 | 62 | 64 | 66 | 65 | 59 | 50 | 42 | 36 | 32 | 30 | 28 | 29 | 29 | 30 | 35 | 43 | 48 | 51 | 52 | 52 | 53 | 53 | 55 | 46 | 32 | 26 | 28 | 42 | 45 | 50 | 54 | 42 | 27 | 20 | 22 | 35 | 39 | 43 | 49 | 41 | 27 | 20 | 22 | 35 | 38 | 44 | 50 | 42 | 27 | 20 | 22 | 35 | 38 | 43 | 49 | 38 | 26 | 21 | 24 | 35 | 39 | 43 | 47 | 39 | 26 | 22 | 25 | 36 | 39 | 43 | 49 | 40 | 27 | 27 | 43 | 53 | 32 | 32 | 45 | 54 | 32 | 28 | 39 | 48 | 27 |
Winds |
WindSpeed (mph) | 8 | 10 | 11 | 11 | 13 | 13 | 13 | 11 | 10 | 8 | 8 | 6 | 7 | 6 | 5 | 5 | 4 | 5 | 5 | 4 | 4 | 5 | 6 | 8 | 9 | 11 | 11 | 10 | 10 | 8 | 9 | 7 | 10 | 8 | 7 | 6 | 4 | 4 | 4 | 8 | 9 | 6 | 5 | 5 | 4 | 4 | 7 | 16 | 20 | 15 | 11 | 7 | 9 | 10 | 13 | 20 | 21 | 18 | 11 | 9 | 8 | 8 | 7 | 10 | 11 | 10 | 8 | 7 | 6 | 7 | 7 | 8 | 11 | 9 | 7 | 6 | 7 | 6 | 6 | 8 | 10 | 9 | 8 | 7 | 6 | 7 | 8 | 9 | 11 | 7 | 7 | 9 | 9 | 7 | 8 | 11 | 12 | 10 | 9 | 13 |
Windspeed SD | 1 | 3 | 2 | 2 | 6 | 6 | 4 | 3 | 2 | 1 | 2 | 2 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 4 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 4 |
Wind Gust (mph) | 13 | 15 | 16 | 16 | 20 | 19 | 19 | 16 | 14 | 12 | 12 | 10 | 10 | 10 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 8 | 9 | 12 | 14 | 15 | 16 | 15 | 14 | 13 | 13 | 12 | 14 | 12 | 11 | 10 | 7 | 6 | 6 | 12 | 13 | 9 | 8 | 6 | 4 | 6 | 11 | 24 | 30 | 22 | 16 | 11 | 15 | 16 | 20 | 29 | 32 | 27 | 17 | 13 | 11 | 12 | 12 | 14 | 17 | 16 | 12 | 11 | 9 | 10 | 9 | 12 | 16 | 13 | 11 | 10 | 9 | 10 | 10 | 11 | 15 | 13 | 11 | 10 | 9 | 11 | 11 | 14 | 16 | 10 | 10 | 13 | 14 | 11 | 12 | 16 | 18 | 15 | 14 | 20 |
Wind Gust SD | 2 | 3 | 3 | 4 | 6 | 6 | 5 | 4 | 3 | 3 | 3 | 4 | 3 | 2 | 2 | 2 | 3 | 4 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 4 | 3 | 5 | 4 | 5 | 6 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 3 | 3 | 4 | 5 | 4 | 6 | 6 | 7 | 8 | 8 | 10 | 10 | 9 | 6 | 4 | 4 | 3 | 5 | 4 | 2 | 4 | 3 | 3 | 2 | 3 | 4 | 3 | 4 | 4 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 4 | 2 | 4 | 4 | 5 | 3 | 5 | 2 | 3 | 2 |
Clouds |
Total Cloud % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 46 | 48 | 21 | 26 | 41 | 24 | 8 | 3 | 3 | 6 | 7 | 7 | 13 | 6 | 7 | 11 | 18 | 22 | 19 | 13 | 7 | 5 | 5 | 4 | 6 | 11 | 7 | 11 | 8 | 8 | 12 | 15 | 11 | 14 | 10 | 12 | 16 | 14 | 16 | 13 | 9 | 18 | 18 | 18 | 17 | 7 | 6 | 6 | 6 | 11 | 11 | 14 | 21 | 11 | 20 | 23 | 24 | 15 | 26 | 32 | 34 | 22 | 29 | 20 |
Cig Height (ft) | 30000 | 11076 | 12651 | 9501 | 10997 | 9501 | 8504 | 9501 | 9501 | 9501 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 18530 | 20709 | 15302 | 30000 | 16378 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | 30000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Cig <500 Prob | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 4 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 2 | 4 | 6 | 4 | 0 | 0 | 0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Cig <1000 Prob | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 2 | 4 | 2 | 2 | 4 | 8 | 10 | 9 | 3 | 1 | 1 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Cig <3000 Prob | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 6 | 4 | 8 | 3 | 2 | 8 | 12 | 13 | 16 | 8 | 3 | 3 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Visibility |
Vis (miles) | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | 7.00 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Vis <1 Prob | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 0 | 0 | 0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Vis <3 Prob | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 0 | 0 | 0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Vis <5 Prob | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 4 | 2 | 1 | 1 | 0 | 0 | 2 | 6 | 5 | 4 | 0 | 0 | 0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Thunderstorms |
Tstm Prob | 5 | 8 | 12 | 15 | 14 | 12 | 9 | 6 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 7 | 8 | 8 | 8 | 7 | 5 | 3 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 8 | 8 | 4 | 2 | 1 | 0 | 0 | 1 | 7 | 6 | 4 | 1 | | 1 | | 2 | | 5 | | 3 | | 1 | | 1 | | 7 | | 3 | | 1 | | 1 | | 5 | | 3 | | 2 | | 1 | | 7 | | 5 | | 2 | | 2 | | | | | | | | | | | | |
CAPE | 235 | 312 | 285 | 321 | 178 | 165 | 120 | 152 | 115 | 73 | 48 | 19 | 1 | 0 | 0 | 1 | 1 | 3 | 2 | 2 | 18 | 45 | 108 | 183 | 210 | 278 | 281 | 254 | 207 | 215 | 253 | 203 | 102 | 98 | 68 | 48 | 102 | 63 | 15 | 36 | 32 | 28 | 11 | 6 | 15 | 24 | 23 | 94 | 63 | 35 | 16 | 10 | 8 | 9 | 3 | 5 | 15 | 4 | 2 | 2 | 1 | 0 | 0 | 2 | 7 | 6 | 3 | 3 | 2 | 1 | 2 | 5 | 10 | 10 | 2 | 1 | 1 | 1 | 1 | 4 | 16 | 14 | 10 | 3 | 2 | 1 | 3 | 10 | 53 | 8 | 3 | 23 | 76 | 10 | 4 | 73 | 92 | 17 | 4 | 39 |
CAPE SD | 260 | 265 | 341 | 343 | 347 | 421 | 250 | 210 | 162 | 91 | 67 | 27 | 6 | 4 | 2 | 3 | 4 | 8 | 6 | 10 | 25 | 158 | 208 | 290 | 294 | 295 | 272 | 222 | 212 | 232 | 179 | 189 | 87 | 107 | 106 | 120 | 162 | 97 | 15 | 97 | 192 | 141 | 19 | 23 | 22 | 33 | 35 | 60 | 62 | 45 | 22 | 16 | 14 | 13 | 5 | 9 | 37 | 5 | 3 | 4 | 3 | 1 | 1 | 3 | 17 | 14 | 10 | 9 | 6 | 5 | 6 | 8 | 27 | 24 | 6 | 4 | 5 | 3 | 5 | 8 | 36 | 24 | 14 | 6 | 4 | 3 | 4 | 19 | 106 | 12 | 5 | 39 | 113 | 15 | 7 | 64 | 67 | 9 | 6 | 24 |