Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
749 FOUS55 KTFX 152135 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 335 PM MDT Sat Aug 15 2026 MTZ312-161000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 51 83 52 82 54 Temp 76 67 60 54 51 60 75 81 79 67 61 55 53 58 72 79 79 68 62 57 55 Dewpt 50 53 52 50 48 50 49 44 46 48 50 47 47 48 50 47 46 48 49 48 48 RH 40 61 75 86 89 69 40 27 31 50 67 74 80 69 46 32 31 49 62 72 77 Wind dir NE NE S S S SW W W NE E SW SW SW SW W W N NE S SW SW Wind spd 11 9 4 5 5 4 5 5 5 4 3 3 3 3 3 4 6 5 5 5 5 Clouds SC B2 B1 SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 SC B1 B1 B1 B1 SC PoP 12hr 20 30 30 0 30 QPF 12hr 0 0.04 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C S S C C C C Tstms S S S S S S S Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 50 84 52 84 54 88 56 87 Temp 72 75 59 51 77 82 62 54 77 82 63 54 79 85 66 57 80 83 Dewpt 49 46 49 46 44 39 44 43 43 39 44 44 46 44 47 47 47 44 PWind dir W SW SW W W E W E W Wind char LT LT GN LT LT LT LT LT LT Avg clouds SC SC SC SC FW FW SC FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 20 20 5 10 5 5 10 20 20 Rain shwrs S S S S Tstms S S S S $$ MTZ303-161000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 46 77 47 75 48 Temp 71 63 55 49 47 56 72 76 76 64 56 50 48 55 68 73 73 63 55 51 49 Dewpt 47 51 49 47 47 49 48 45 45 48 47 45 44 48 50 47 45 48 47 46 45 RH 42 65 80 93100 77 42 33 33 56 72 83 86 77 52 40 37 58 74 83 86 Wind dir E E S S W SW SW N N NW W W NW W SW W W N W NW NW Wind spd 9 8 4 2 1 2 3 6 5 3 3 3 3 2 4 5 8 4 4 3 3 Wind gust 16 Clouds SC B2 SC SC B1 SC B1 OV B2 B1 SC SC B1 B1 B1 SC B1 B1 B1 B1 B1 PoP 12hr 5 20 20 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S Tstms S S S S S Obvis PF PF K K K Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 73 47 78 48 78 49 81 52 79 Temp 67 71 55 48 73 76 57 50 73 76 57 50 73 79 60 53 72 77 Dewpt 50 46 46 44 45 41 43 42 44 42 44 43 46 44 45 45 48 44 PWind dir NW SW W W W W SW S SW Wind char LT LT GN GN LT LT LT LT LT Avg clouds B1 SC SC FW FW FW FW SC SC FW FW FW SC FW SC SC B1 SC PoP 12hr 20 10 0 5 0 5 5 20 20 Rain shwrs S S S S Tstms S S $$ MTZ319-161000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 82 53 82 55 Temp 77 68 61 55 51 57 73 81 80 68 61 55 53 59 72 79 80 69 63 58 55 Dewpt 49 50 51 50 48 49 52 48 44 48 48 47 47 50 53 50 47 47 48 49 48 RH 37 52 70 83 89 75 48 32 28 49 62 74 80 72 51 36 31 45 58 72 77 Wind dir SE SW SW S W N E W NW SW SW SW N N E W W SW SW SW SW Wind spd 3 5 4 4 2 0 3 5 5 4 3 1 0 0 2 5 6 6 4 4 1 Clouds B2 OV B1 SC B1 SC SC B2 B1 B1 B1 B1 OV B1 SC SC B1 B2 B2 B2 B1 PoP 12hr 80 20 30 5 40 QPF 12hr 0.09 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S D C S S C C S S C C Tstms S S S S S S S Obvis K Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 49 81 51 84 53 87 54 85 Temp 71 76 59 49 73 79 61 51 75 83 63 53 76 85 65 54 76 82 Dewpt 52 46 48 46 49 41 45 44 48 41 45 45 49 46 49 47 51 46 PWind dir W SW SW W N W NE W S Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 SC SC FW SC FW FW FW FW SC FW FW SC SC SC SC PoP 12hr 40 30 5 10 5 10 10 30 30 Rain shwrs C C C C Tstms C S S C $$ MTZ326-161000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 47 79 48 81 50 Temp 75 63 57 52 49 56 70 78 78 64 59 53 49 58 72 79 77 65 60 55 51 Dewpt 50 53 54 52 49 50 51 47 45 50 51 49 47 48 51 48 48 52 52 51 50 RH 41 70 90100100 80 51 33 31 60 75 86 93 69 48 34 36 63 75 86 96 Wind dir NW E S S SE N NW NW N SE SE SE SE N W W NW S SE SE S Wind spd 3 5 3 4 3 0 2 4 4 4 4 3 1 0 3 4 6 5 4 3 3 Clouds OV B2 SC SC B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 B2 OV B2 B1 PoP 12hr 60 30 40 5 60 QPF 12hr 0.01 0 0.04 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C S S L L C C C Tstms C S S S S S S S S S S Obvis PF PF Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 78 47 80 48 83 50 88 52 86 Temp 70 73 57 48 72 77 60 50 75 81 62 51 78 84 64 53 78 82 Dewpt 52 48 51 48 49 44 47 45 47 43 48 46 48 45 50 49 49 47 PWind dir SW SE SW SE SW SE SW E S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC SC SC SC FW FW SC SC FW FW SC B1 SC SC PoP 12hr 40 20 5 10 5 5 10 20 30 Rain shwrs C C S S S C Tstms S C S S S $$ MTZ330-161000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 34 75 35 76 38 Temp 70 59 48 43 38 48 70 75 73 61 50 41 36 49 68 74 68 58 51 44 39 Dewpt 46 47 46 43 38 44 46 43 41 45 45 41 36 42 45 42 44 46 47 44 39 RH 42 64 93100100 86 42 32 31 56 83100100 77 43 32 42 64 86100100 Wind dir SW N N N N N SW SW W N N N N N SW SW W N N N N Wind spd 5 0 0 0 0 0 4 9 3 0 0 0 0 0 5 10 5 0 0 0 0 Wind gust 14 Clouds OV B1 SC SC B2 B1 B1 B1 SC SC SC SC B2 B1 SC B1 B2 OV B2 B2 B2 PoP 12hr 80 20 20 10 50 QPF 12hr 0.01 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S S S C C C C C Tstms C S S S S S S S Obvis PF PF Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 73 34 74 36 78 39 82 42 80 Temp 65 65 48 36 67 68 50 38 71 74 53 40 74 77 55 42 73 74 Dewpt 48 43 45 36 43 38 42 38 43 39 42 39 45 41 44 41 46 42 PWind dir SW SW SW W SW W SW W SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 B1 SC SC SC SC FW SC SC SC FW SC B1 B1 SC PoP 12hr 50 20 5 5 10 10 10 10 20 Rain shwrs C C S S S Tstms S C S S $$ MTZ328-161000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 44 77 46 78 48 Temp 70 59 53 49 46 53 68 76 75 62 56 51 47 54 68 76 74 63 57 52 49 Dewpt 57 55 52 49 46 51 53 49 53 53 51 48 45 49 52 51 55 54 52 49 48 RH 63 87 96100100 93 59 39 46 72 83 89 93 83 57 42 51 72 83 89 96 Wind dir S SW S S S SW SW W SW SE S S S SW SW W W E S S SW Wind spd 6 4 4 4 5 3 2 4 5 4 3 4 4 3 2 5 6 4 5 4 4 Clouds B2 B1 SC SC B1 SC SC SC B1 B1 B1 B1 B2 B1 SC B1 B2 B2 OV B2 B1 PoP 12hr 70 30 30 5 50 QPF 12hr 0.02 0 0.01 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S C C S S C C C C Tstms C S S S S S S S Obvis PF PF Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 76 45 78 47 81 50 84 51 83 Temp 67 71 56 46 69 75 57 49 72 79 60 50 74 81 61 52 74 79 Dewpt 52 53 50 46 50 49 47 44 49 50 48 45 50 53 50 47 51 52 PWind dir W SE SW SW SW S SW S SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC B1 SC B1 SC SC SC SC FW FW SC SC FW B1 B1 B1 B1 PoP 12hr 20 20 5 10 10 10 10 30 30 Rain shwrs S S C S C Tstms S S S C $$ MTZ305-161000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 49 84 50 81 50 Temp 76 67 58 54 50 60 75 82 82 69 61 55 51 59 72 78 78 67 60 55 51 Dewpt 49 53 53 52 50 51 53 49 48 52 52 50 48 49 51 50 48 51 51 50 48 RH 39 61 83 93100 72 46 32 31 55 72 83 89 69 48 37 35 56 72 83 89 Wind dir N NE E E N N SW W NW SW SW N N N E W NW E E E NE Wind spd 4 6 4 3 0 0 4 5 5 3 2 0 0 0 3 4 6 4 4 3 3 Clouds FW SC B1 B1 SC FW FW B1 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 30 20 30 10 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C S S C C S S S Tstms S S S S S S S Obvis PF PF Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 50 85 52 85 52 89 55 88 Temp 71 76 59 51 76 82 62 54 78 82 62 53 80 86 65 56 80 85 Dewpt 52 48 51 49 50 43 47 46 48 43 47 46 48 45 49 48 49 46 PWind dir NE S SW SW W E SE E W Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC FW FW FW SC FW FW FW FW FW FW SC SC SC SC PoP 12hr 20 20 5 5 0 10 5 20 10 Rain shwrs S S S S Tstms S S $$ MTZ314-161000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 335 PM MDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 48 79 49 78 50 Temp 71 62 57 54 50 61 74 77 76 64 58 55 51 60 71 74 75 64 58 55 52 Dewpt 54 56 54 53 49 53 52 49 51 54 52 49 45 50 51 51 52 52 50 48 46 RH 55 81 90 96 96 75 46 37 42 70 80 80 80 69 49 44 45 65 75 77 80 Wind dir E SE SE SE SE W W W NW S S S S N NW NW NW E S S SW Wind spd 4 5 4 4 3 2 3 4 3 3 2 2 1 0 1 4 4 3 3 3 3 Clouds SC B2 B1 B1 B1 B1 B1 B1 B2 B1 SC B1 B2 B1 B1 SC B1 B1 B2 B2 B2 PoP 12hr 50 30 30 20 30 QPF 12hr 0.02 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S C C S S S S C C C C S Tstms S S S S S S S S S S S S Obvis PF PF Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 75 48 79 50 81 51 85 54 86 Temp 68 70 55 50 73 77 58 54 76 79 59 52 78 82 62 55 79 81 Dewpt 51 51 50 47 46 45 46 44 44 45 46 44 46 48 48 47 49 50 PWind dir W SW W S W SE SW SE SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B1 SC FW SC FW SC FW FW FW SC CL SC SC SC SC PoP 12hr 50 30 10 10 5 5 5 20 20 Rain shwrs S C C S S S S Tstms S S S S S $$ http://www.weather.gov/greatfalls