FOMY50 PGUM 210555 PFMGUM Point Forecast Matrices National Weather Service Tiyan GU 355 PM ChST Sun Jun 21 2026 GUZ001-211800- Guam International Airport-Tiyan GU 13.48N 144.79E Elev. 248 ft 355 PM ChST Sun Jun 21 2026 Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26 Wed ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 79 88 78 87 77 Temp 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 Dewpt 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 78 79 79 79 RH 75 80 85 94 97 97 82 72 75 80 85 94 97 97 82 72 75 80 88 97100 Wind dir S S S SE SE SE SE SE S SW W W NW NW N N N N N N N Wind spd 5 5 5 4 2 3 4 4 4 2 1 1 1 2 4 5 5 4 3 3 3 Clouds B1 SC SC SC SC SC SC B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 30 30 30 30 30 QPF 12hr 0.06 0.06 0.04 0.04 0.09 Rain shwrs C S S S S S S C C S S S S C C C C C C C C Tstms S S S S S S S S S S Heat index 100 97 92 87 94101100 97 92 88 95101100 97 93 88 Max heat 101 99 91 94 101 99 91 95 101 100 91 Date 06/24/26 Thu 06/25/26 Fri 06/26/26 Sat 06/27/26 Sun 06/28/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 88 77 88 78 88 79 88 79 88 Temp 84 87 83 79 83 86 83 79 84 87 83 80 84 87 83 80 85 88 Dewpt 79 79 79 79 78 78 79 78 78 78 79 79 79 78 79 79 77 77 PWind dir E SE E E E E E E E Wind char LT LT LT LT GN GN GN GN GN Avg clouds B1 SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC PoP 12hr 30 20 20 30 30 30 20 20 20 Rain shwrs C S S S S S S S C C C S S S S S S S Tstms S $$ MPZ001-211800- Rota International Airport-Sinapalu MP 14.17N 145.23E Elev. 592 ft 355 PM ChST Sun Jun 21 2026 Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26 Wed ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 78 88 77 87 76 Temp 87 85 82 79 77 78 83 88 87 85 82 79 77 78 83 88 87 85 82 79 77 Dewpt 78 78 78 78 77 78 78 77 77 77 78 78 77 78 78 78 78 78 79 79 77 RH 75 80 88 97100100 85 70 72 77 88 97100100 85 72 75 80 91100100 Wind dir S SE SE SE SE SE SE SE SE SE SE NE N N N N N N NE E E Wind spd 5 5 5 4 2 3 4 4 4 3 2 2 2 4 5 5 6 5 5 4 3 Clouds B1 SC SC SC SC SC SC B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 30 30 30 30 30 QPF 12hr 0.05 0.05 0.03 0.08 0.11 Rain shwrs C S S S S S S C C S S S S C C C C C C C C Tstms S S S S S S S S S S Heat index 100 96 90 93100 99 96 90 94101101 97 91 Max heat 101 99 89 93 100 98 89 94 101 99 89 Date 06/24/26 Thu 06/25/26 Fri 06/26/26 Sat 06/27/26 Sun 06/28/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 87 77 87 78 88 79 87 79 87 Temp 83 87 82 77 82 86 82 79 84 87 83 80 84 86 83 81 84 87 Dewpt 78 79 79 77 79 79 79 78 79 78 79 78 78 78 78 78 77 77 PWind dir SE SE SE E E E E E E Wind char LT LT GN GN GN GN GN GN BZ Avg clouds B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC PoP 12hr 30 20 20 30 30 30 20 20 20 Rain shwrs C S S S S S S S C C C S S S S S S S Tstms S $$ MPZ002-211800- Tinian-San Jose MP 14.97N 145.63E Elev. 74 ft 355 PM ChST Sun Jun 21 2026 Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26 Wed ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 79 88 78 87 77 Temp 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 Dewpt 78 77 78 77 77 77 77 77 77 77 78 78 78 78 78 78 79 79 79 79 79 RH 75 77 85 91 94 94 80 70 72 77 85 94 97 97 82 72 77 82 88 97100 Wind dir SE SE SE SE SE SE SE SE E E E NE N N N NE NE NE E E E Wind spd 5 5 5 3 2 4 5 5 4 4 3 2 2 4 6 6 6 6 5 5 5 Clouds B1 SC SC SC SC SC SC B1 B1 SC SC B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 30 30 30 40 40 QPF 12hr 0.06 0.04 0.10 0.11 0.19 Rain shwrs C S S S S S S C C S S C C C C C C C C C C Tstms S S S S S S S S S S S S S S Heat index 100 96 92 87 94100 99 96 92 88 95101101 98 93 88 Max heat 101 99 90 94 100 98 91 95 102 100 92 Date 06/24/26 Thu 06/25/26 Fri 06/26/26 Sat 06/27/26 Sun 06/28/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 88 77 88 78 88 79 89 79 89 Temp 84 87 83 79 83 86 83 79 85 88 84 80 85 88 84 80 85 88 Dewpt 79 79 79 79 79 79 79 79 78 78 79 78 78 78 79 78 77 77 PWind dir SE SE E E E E E E E Wind char LT GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC PoP 12hr 30 20 20 30 30 30 20 20 20 Rain shwrs C S S S S S S S C C C S S S S S S S Tstms S $$ MPZ003-211800- Saipan International Airport-Obyan MP 15.11N 145.72E Elev. 215 ft 355 PM ChST Sun Jun 21 2026 Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26 Wed ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 79 88 78 87 77 Temp 87 85 83 80 79 79 84 88 87 85 83 80 79 79 84 88 87 85 83 80 79 Dewpt 78 77 78 77 77 77 77 77 77 78 78 78 78 78 78 78 79 79 79 79 79 RH 75 77 85 91 94 94 80 70 72 80 85 94 97 97 82 72 77 82 88 97100 Wind dir SE SE SE SE SE SE SE E E E E NE N NE NE NE NE NE E E SE Wind spd 5 5 5 3 2 4 5 5 4 4 3 2 3 4 6 8 6 6 5 5 5 Clouds B1 SC SC SC SC SC SC B1 B1 SC SC B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 30 30 30 40 40 QPF 12hr 0.04 0.03 0.13 0.10 0.17 Rain shwrs C S S S S S S C C S S C C C C C C C C C C Tstms S S S S S S S S S S S S S S Heat index 100 96 91 87 94100 99 96 92 87 95101101 98 93 88 Max heat 101 99 90 94 100 98 90 95 102 100 92 Date 06/24/26 Thu 06/25/26 Fri 06/26/26 Sat 06/27/26 Sun 06/28/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 88 77 88 78 88 79 89 79 89 Temp 84 87 83 79 83 86 83 79 85 88 84 80 85 89 84 79 85 88 Dewpt 79 79 79 79 79 79 79 79 78 78 79 78 78 78 79 78 77 77 PWind dir SE SE E E E E E E E Wind char LT GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC PoP 12hr 30 20 20 30 30 30 20 20 20 Rain shwrs C S S S S S S S C C C S S S S S S S Tstms S $$