Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
764 FOUS55 KTFX 130935 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 335 AM MDT Sun Sep 13 2026 MTZ312-132200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 68 45 62 41 66 Temp 44 49 61 68 65 55 50 48 46 51 59 62 60 52 48 45 42 48 61 66 62 Dewpt 40 42 44 43 46 46 43 40 38 38 40 39 40 40 40 39 37 38 41 40 42 RH 86 77 53 40 50 72 77 74 73 61 49 43 47 63 74 79 82 68 48 38 48 Wind dir NE NE W NW NW NW SW SW SW W W NW NW W S S SE SE NE NE NE Wind spd 3 2 3 8 11 9 6 14 24 26 25 19 10 3 4 3 3 2 3 6 10 Wind gust 34 35 33 20 Clouds SC SC SC FW B2 B2 SC B2 B2 B2 B2 B2 SC SC SC SC SC B1 B1 B1 B2 PoP 12hr 10 70 20 0 0 QPF 12hr 0 0.07 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L S S S S Tstms S Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 64 42 71 45 72 46 78 Temp 51 46 58 60 48 44 65 68 51 47 66 69 53 47 70 74 Dewpt 43 42 45 42 41 39 42 40 41 39 42 42 41 39 42 42 PWind dir N NW SE SW SE W SE SW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 FW FW FW FW CL FW FW FW CL FW FW FW FW PoP 12hr 20 10 0 0 0 5 0 0 Rain shwrs S S $$ MTZ303-132200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 59 41 57 39 56 Temp 40 46 54 59 56 50 46 43 42 47 52 56 55 49 46 42 40 45 53 56 54 Dewpt 36 38 43 44 45 42 38 37 36 38 41 41 42 42 41 40 38 40 44 43 43 RH 85 73 66 57 66 74 73 79 79 71 66 57 61 77 83 93 92 82 71 62 66 Wind dir E E SE S W W SW SW W W NW NW NW W W NW E SE SE SE E Wind spd 5 9 12 8 10 10 12 13 23 28 28 19 12 5 4 4 3 3 9 9 8 Wind gust 23 24 40 46 44 36 24 Clouds SC B1 B2 B2 B1 B1 B1 SC OV B2 B1 B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 40 20 40 20 10 QPF 12hr 0 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C S C S S C Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 41 60 39 66 42 67 42 71 Temp 47 41 55 56 46 41 61 63 49 43 61 64 50 43 63 68 Dewpt 42 40 45 41 40 37 42 42 41 39 44 44 42 39 44 45 PWind dir NE NW S W NW SW S S Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC FW FW FW FW FW CL FW FW FW FW FW SC FW PoP 12hr 40 5 0 0 0 0 0 0 Rain shwrs C C $$ MTZ319-132200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 43 63 39 69 Temp 46 49 62 70 65 55 52 47 44 50 57 61 61 52 48 42 39 46 62 69 66 Dewpt 40 39 44 43 43 40 39 37 38 38 39 36 37 36 38 35 36 36 40 37 37 RH 79 68 52 38 45 57 61 68 79 63 51 39 41 54 68 76 89 68 44 31 34 Wind dir N NW NE NW NW W SW SW SW W W W NW W SW SW N N E NE N Wind spd 0 3 4 6 14 11 10 8 12 20 24 19 12 5 5 3 0 0 3 5 9 Wind gust 17 29 36 36 33 25 Clouds SC B1 SC SC B1 B1 SC B1 B2 B1 SC FW FW FW FW SC SC SC SC B1 B1 PoP 12hr 20 50 10 0 0 QPF 12hr 0 0.06 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 68 42 74 45 76 45 78 Temp 54 45 61 63 51 42 66 71 54 45 68 73 55 45 70 75 Dewpt 41 40 45 38 40 38 41 36 39 38 40 36 39 38 40 37 PWind dir NW NW W NE W N W SE Wind char GN LT LT LT LT LT LT LT Avg clouds B2 B1 B1 FW FW FW FW CL FW FW FW CL FW FW FW FW PoP 12hr 20 10 5 0 5 5 5 5 Rain shwrs S $$ MTZ326-132200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 38 62 33 71 Temp 48 53 68 77 74 56 47 43 39 45 55 60 60 48 43 38 34 44 63 71 69 Dewpt 38 37 44 37 34 42 44 43 39 40 36 34 36 39 40 37 33 36 38 35 36 RH 68 54 42 24 23 59 89100100 82 49 37 41 71 89 96 96 73 39 27 30 Wind dir N NW NW SW SW NW W S SW W W NW NW N SE SE E N NW NW NE Wind spd 9 8 4 11 18 14 10 6 9 13 18 19 12 3 4 4 3 0 2 4 5 Wind gust 25 32 26 26 35 33 23 Clouds FW FW FW FW SC SC B2 B1 B1 SC B1 SC SC FW FW FW FW SC FW SC SC PoP 12hr 0 70 10 0 0 QPF 12hr 0 0.06 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 37 70 36 73 39 75 39 78 Temp 46 38 58 66 45 39 63 71 48 42 66 72 48 41 69 76 Dewpt 40 36 41 39 42 38 39 37 40 37 39 36 39 36 37 37 PWind dir E NW E SW E SW E SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW FW FW FW SC B1 SC FW CL FW FW FW PoP 12hr 5 5 10 5 30 20 5 10 Rain shwrs S C S $$ MTZ330-132200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 26 59 23 66 Temp 38 49 65 68 64 51 44 33 26 35 50 57 57 44 36 29 24 35 59 65 63 Dewpt 24 28 34 29 23 24 26 27 26 27 26 22 22 26 27 26 24 26 28 20 20 RH 57 44 31 23 21 34 49 78100 72 39 25 25 49 69 88100 69 30 18 19 Wind dir N S SW SW SW SW SW SW SW SW SW SW SW SW N N N N SW SW SW Wind spd 0 3 23 23 24 14 20 17 13 18 16 12 8 1 0 0 0 0 6 12 9 Wind gust 35 34 25 32 26 24 18 Clouds SC FW FW FW FW SC SC SC SC FW FW SC B1 FW FW FW FW FW CL FW FW PoP 12hr 0 20 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Snowshwrs S Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 27 70 28 68 29 68 28 71 Temp 39 27 63 64 39 29 61 63 40 30 61 65 40 28 63 68 Dewpt 23 24 32 25 31 29 35 31 32 30 34 29 30 27 33 28 PWind dir SW SW N SW SW SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW SC FW SC B1 B1 B1 SC FW FW FW FW CL PoP 12hr 0 5 5 30 40 20 5 5 Rain shwrs C C C S Tstms S S $$ MTZ328-132200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 36 63 32 72 Temp 45 50 68 75 70 54 45 40 37 43 56 61 61 49 42 37 33 43 63 71 70 Dewpt 37 37 40 29 28 28 34 34 32 32 33 31 32 32 34 33 30 32 35 30 29 RH 73 61 36 18 21 36 65 79 82 65 42 32 33 52 73 85 89 65 35 22 22 Wind dir E SW SW W W W SW S SW SW W W NW NE SE S S S NW NW N Wind spd 4 4 5 21 21 11 11 11 16 20 14 11 8 4 5 4 4 3 2 3 6 Wind gust 33 34 28 Clouds SC SC FW FW SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW SC PoP 12hr 0 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 37 69 35 72 38 75 38 78 Temp 48 37 62 65 45 37 64 70 47 40 66 72 48 40 69 75 Dewpt 35 34 40 35 38 36 36 33 38 36 36 32 35 33 35 32 PWind dir NE NE E SW SW SW S SW Wind char GN LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW FW FW FW SC SC FW FW CL FW FW FW PoP 12hr 0 5 5 5 20 10 5 5 Rain shwrs S S $$ MTZ305-132200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 45 62 39 65 Temp 44 52 65 70 68 57 52 49 46 50 55 60 58 50 46 43 40 48 60 65 61 Dewpt 39 39 44 43 43 45 47 44 40 41 44 46 45 44 44 42 39 41 44 41 43 RH 82 61 46 38 40 64 83 83 79 71 66 60 62 80 93 96 96 77 55 41 51 Wind dir E E E E SE N W W SW W W NW NW W W W N E E E E Wind spd 11 14 20 20 16 11 10 12 16 20 24 25 19 10 5 3 0 4 8 9 12 Wind gust 32 32 36 39 32 Clouds FW FW SC SC SC OV B2 SC B2 B1 B2 B2 SC SC SC SC B1 B2 B2 B2 B2 PoP 12hr 0 90 50 10 5 QPF 12hr 0 0.11 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S D C C C C Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 68 41 72 44 74 46 78 Temp 50 44 61 62 48 43 65 68 51 46 66 69 53 47 69 73 Dewpt 43 41 47 43 43 41 44 44 43 41 45 44 43 41 45 46 PWind dir E N S SW SE SE E S Wind char GN LT LT LT LT LT LT LT Avg clouds B2 B2 B1 FW FW FW FW CL FW FW FW CL FW FW FW FW PoP 12hr 40 10 0 0 0 0 5 0 Rain shwrs C C $$ MTZ314-132200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 335 AM MDT Sun Sep 13 2026 Date Sun 09/13/26 Mon 09/14/26 Tue 09/15/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 40 57 36 66 Temp 42 50 62 71 70 54 48 45 41 47 52 55 55 48 44 41 38 48 61 66 64 Dewpt 37 37 42 43 43 45 44 41 37 36 38 40 41 41 40 37 35 38 40 38 39 RH 82 61 48 36 38 71 86 86 85 65 59 57 59 77 86 85 89 68 46 36 40 Wind dir E SE SE SE SE W W W W W W W NW W W SW S SE SE SE E Wind spd 10 13 18 14 6 9 12 11 16 25 36 35 23 10 4 3 3 3 4 5 9 Wind gust 24 25 17 25 29 39 48 49 36 Clouds FW FW FW FW SC SC B1 B1 B1 B1 B2 B1 B1 SC SC SC SC SC SC B1 B1 PoP 12hr 0 40 30 5 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C High Wind A A A Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 40 64 39 71 42 72 44 77 Temp 49 41 57 61 47 43 65 69 50 46 66 69 52 46 71 73 Dewpt 39 36 44 40 40 38 40 39 39 37 39 40 38 36 38 40 PWind dir E NW SE W SE W SE S Wind char GN LT LT LT LT LT LT LT Avg clouds B1 B1 B1 SC FW FW FW FW FW FW SC FW FW FW FW FW PoP 12hr 10 10 5 0 5 10 5 5 $$ http://www.weather.gov/greatfalls